QUESTIONSHEET 1

 

(a) 750 MJ / 750,000,000 J                                                                                                                             1                           2

      ½ ΄ 150,000 ΄ 1002                                                                                                                                 1

 

(b) engine thrust / jet thrust                                                                                                                             1                           1

          weight of plane / downward force of plane due to gravity                                                                       1    

 

(c) 500,000 ΄ d = 750 000 000                                                                                                                        1

     d = 1500 m                                                                                                                               1 + 1 (units)

 

              TOTAL  / 7

 

 

 

 

QUESTIONSHEET 2

 

(a) 80 N in the direction of motion / 80 N forward.                                                                                          1                   

 

(b) work done = force ΄ distance                                                                                                                    1                           1

     1600                                                                                                                                                        1                                       1

     J                                                                                                                                                              1                                  1                                                                                                                                                                            

 

(c) (i)    300 J                                                                                                                                                1                                       1

 

     (ii)    the sledge falls / slides down the hill                                                                                                   1                         1

            potential energy converted to kinetic energy.                                                                                       1                    1

 

 

 

TOTAL  / 7

 

 

 

 


 

QUESTIONSHEET 3

 

(a) Terminal velocity                                                                                                                                      1                             1

 

(b) Air resistance and gravity                                                                                                                         1                           1

 

(c) Air resistance reduces                                                                                                                              1                             1                                                                                                                 Gravity remains constant                           1

     Gravity remains constant                                                                                                                           1

     Resultant force/ unbalanced so acceleration.                                                                                              1                    1     

 

(d) (i)   

 

 

 

 

 

 

 

 


           

 

 

           

            Graph

            2/3rds of paper used and correct axis                                                                                                 1                         1

            Majority of correct points plotted.                                                                                                       1                         1

            Anomalous result at 40secs not included in line.                                                                                  1              

            Smoothed line/ curve of best fit used.                                                                                                 1                         1

 

     (ii)    Gradient calculated using straight line values between 10-15 secs                                                         1                             1

            Accept answer 25-75 m/s                                                                                                                  1                           1

 

    

 

 

TOTAL  / 10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTIONSHEET 4

 

(a) speed = distance/time                                                                                                                               1                             1

 

(b) 200 / 19.32                                                                                                                                               1                                  1

     = 10.35m/s                                                                                                                                               1                                  1

 

(c) ½  ΄  final speed ΄  time                                                                                                                           1                           1                                                                                                                                   ½  x  7.5  x  2                                  1

     ½  ΄ 7.5 ΄ 2                                                                                                                                             1

     =  7.5 m                                                                                                                                                   1                                  1

         

(d) speed / time                                                                                                                                             1                                  1

     7.5 / 2                                                                                                                                                          1                                                                                                                                                                              1

     = 3.75m/s2                                                                                                                                                                                               1                                  1                                                                                                                                                  

 

    

TOTAL  / 9

 

 

 

 

QUESTIONSHEET 5

 

(a) 2000 m                                                                                                                                                    1                                  1

 

(b) Alecia                                                                                                                                                      1                                       1

    

(c) Alecia has stopped                                                                                                                                   1                                       1

 

(d) 500                                                                                                                                                          1                           1          ½  x  10  x  1                                                                                                                                                       1

     400        

     =  1.25 ms-1                                                                                                                                              1                                       1                                                                                                                                           

  

(e) Dina overtakes Alecia                                                                                                                              1                         1

   

(f)      Dina                                                                                                                                                                    1                        1

 

(g) 2000                                                                                                                                                        1                                       1

      800

     = 2.5 ms-1                                                                                                                                                1

                                                                                                                                                                                   

     TOTAL  / 9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTIONSHEET 6

 

(a) 1.2 s                                                                                                                                                        1                                  1

    

(b) deceleration= change in velocity/time                                                                                                        1                    1

     = 27 / 4.2                                                                                                                                                     1                                  1

     = 6.43     m/s2                                                                                                                                               1                                  1

 

(c) distance in 1st 1.2s = velocity ΄ time                                                                                                         1                         1

     = 27 ΄ 1.2                                                                                                                                                1                                  1

     = 32.4 m                                                                                                                                                  1                                       1

 

     distance until car stops = (27 ΄ 4.2) / 2                                                                                                       1                    1

     = 56.7 m                                                                                                                                                  1                                       1

    total = 32.4 + 56.7 = 89.1 m                                                                                                                      1                         1

 

                       

TOTAL  / 10

 

 


 

 

QUESTIONSHEET 7

x

 
 


(a)              

                  

 

 

 

 

 

 

 

 

3

 
Text Box: Speed/ s

1

 
 

 

 

 

 

 

 

 

 

 

 

 

 


x

 
                  

 

 

 

 

 

 


                  

20

 

30

 

10

 

Time/ s

 
 

 

 

 

 


                   sensible scales                                                                                                                           1                                  1

                   correct plotting                                                                                                                           1                             1

                   correct lines drawn                                                                                                                     1                             1

 

(b) (i)    average acceleration = change in velocity / time                                                                                  1              

            = 0.5 / 5                                                                                                                                           1                                  1

            = 0.1 m/s2                                                                                                                                         1                                  1

 

     (ii)    (3 – 2) / 5                                                                                                                                         1                                  1

            = 0.2 m/s2                                                                                                                                         1                                  1

 

     (iii)   As the man pulls the lorry, he is able to accelerate more once the lorry gets moving                              1                           1

 

                   TOTAL  / 9

 

 


 

 

QUESTIONSHEET 8

 

(a) speed=distance/time                                                                                                                                 1                             1

 

(b) (i)    100 / 9.96                                                                                                                                         1                                  1

            = 10.04 m/s                                                                                                                                      1                                  1

 

     (ii)    100 / 12                                                                                                                                            1                                  1

            = 8.33 m/s                                                                                                                                        1                                  1

 

     (iii)   any viable reason:

            better diet/training technique improved in 100 years/

            better footwear                                                                                                                                 1                                             1

 

(c) (i)    100 / 40.2                                                                                                                                         1                                  1

            = 2.49 m/s                                                                                                                                        1                                  1

 

     (ii)    resistance of water slows swimmer                                                                                                    1                         1

 

    

TOTAL  / 9

 

 

                                               

QUESTIONSHEET 9

 

(a) constant speed/constant velocity.                                                                                                               1                         1

 

(b) 1 ms-2:                                                                                                                                                                      .            2

     answer – 1, units – 1                                                                                                                                2

 

(c) region c: deceleration from 20 to 10 ms-1 in 5 sec                                                                                        1

     region d: constant speed of 10 ms-1 for 20 sec                                                                                            1

     region e: deceleration from 10 to 0 ms-1 in 15 sec                                                                                       1

 

     (note: 1 mark for correct description for all 3 regions, but no quoted figures.)

 

(d) Bus stop, traffic jam.                                                                                                                                1                              1

 

           

 

TOTAL  / 7

 

 

 

 


 

 

QUESTIONSHEET 10

 

(a) (i)    0.9m                                                                                                                                                1                                       1

 

     (ii)    0.3s                                                                                                                                                  1                                       1

 

     (iii)   1.6m                                                                                                                                                1                                       1

 

(b) conversion of 40kg to 400N.                                                                                                                      1                           1

     360 J                                                                                                                                                       1                                       1

    

 

TOTAL  / 5

 

 

 

QUESTIONSHEET 11

 

(a) 420 ΄ 3 = potential energy gained

     potential energy Έ 3seconds = power = 420 W                                                                                           1                                  1

 

(b) Potential energy converted to kinetic energy.                                                                                              1                    1

 

(c) 140 ΄ 3 = 420 J

     working – 2, correct answer with units –1                                                                                                  3                           3                                                                                                                                                                                3

    

(d) 560 ΄ 3 = 420 ΄ time                                                                                                                                 1                    2                                                                                                                                                                  2

     t = 560 ΄ 3   = 4 seconds                                                                                                                           1              

              420

 

 

            TOTAL  / 7

                  

 

 

                                                                                                                                                                                   

 

 


 

QUESTIONSHEET 12

 

(a)    (i)   

 

 

Speed  (ms-1)

 
 

 

 

 


           

 

 

         

Time (s)

 
 

 

 


            correctly plotted points                                                                                                                      1                           1     

            line joining points.                                                                                                                              1                             1

 

     (ii)   Rope fully stretched so speed changes from                                                                                        

            60ms-1 to 0 / speed changes from 60ms-1 to 0.                                                                                     1  

 

(b) (i)    formula:  deceleration = change in speed                                                                                            1                         1

                                                             time

                  

            correct answer with units: 60 ms-2                                                                                                                                        1                             1

 

    (ii)    Upward force in the elastic                                                                                                                1                             1

 

(c) (i)    formula: acceleration = change in speed                                                                                             1                         1

                                                            time

                  

            correct answer with units: 10 ms-2                                                                                                                                        1                         1

 

     (ii)    force                                                                                                                                                1                                       1

            of gravity                                                                                                                                          1                                 

 

 

TOTAL  / 10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTIONSHEET 13

 

(a) 10 km                                                                                                                                                      1                                       1

 

(b) formula:  speed = distance                                                                                                                         1

                                    time                                                                                                                                                    1

 

    correct answer: 1 km min-1 / 60 kmh-1                                                                                                                                           1                    1

 

(c) (i)    car is standing still / stationary                                                                                                            1                         1

 

     (ii)    formula: speed = distance                                                                                                                  1

                                            time                                                                                                                                              1

 

            correct answer: 1.5 km min-1 / 90 km h-1                                                                                                                           1                    1

 

(d) use of re-arranged formula: time = distance                                                                                                1

                                                               speed                                                                                                             1

           

     correct calculation of time for BC: 6 min                                                                                                    1                    1

    correct final answer: 12 min                                                                                                                      1                           1

 

 

                                                                                                                                                  TOTAL  / 9

 

 

 

                               

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTIONSHEET 14

 


(a)    

           

 

15

 

10

 
Text Box: Speed m/s

x

 

5

 

30

 

10

 

20

 

40

 

50

 

60

 

Time/ s

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


                   sensible scales                                                                                                                           1                                  1

                   correct plotting                                                                                                                           1                             1

                   correct lines drawn                                                                                                                     1                             1

 

(b) ½  ΄  final velocity  ΄  time                                                                                                                        1                           1

     ½  ΄  15  ΄  30                                                                                                                                         1                                  1

     =  225 m                                                                                                                                                  1                                  1

 

(c) moving at constant speed                                                                                                                          1                           1

 

(d) (i)    line drawn from end of graph to ΄ axis at 75 s                                                                                     1  

 

     (ii)    change in velocity / time                                                                                                                    1                           1

            =  20 / 15                                                                                                                                          1                                  1

            =  1.33 m/s2                                                                                                                                                                                  1                                  1

 

             

TOTAL  / 11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                               

QUESTIONSHEET 15

 


(a)     (i)     

x

 
           

14

 

122

 

1010

 

8

 
Text Box: Speed m/s

6

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


4

 
                  

 

2

 

3

 

4

 

5

 

6

 

Time/ s

 
 

 

 

 

 

 

 

 

 

 

 

 


                  

 

                   sensible scales                                                                                                                           1                                  1

                   correct plotting                                                                                                                           1                             1

                   correct lines drawn                                                                                                                     1                             1

         

         

                                                                                                                                                (Continued...)

 

QUESTIONSHEET 15 CONTINUED

 

     (ii)    speed/time                                                                                                                                        1                                  1

            = 15/5                                                                                                                                              1                                       1

            = 3m/s2                                                                                                                                                                                                 1                                  1                                                                                                                                                               

 

     (iii)    ½  ΄  final speed ΄  time                                                                                                                   1                           1                                                                                                                                    ½  x  15  x  5                                  1

              ½  ΄ 15 ΄ 5                                                                                                                                     1

              =  37.5 m                                                                                                                                        1                                  1

 

(b) (i)    line parallel to time axis                                                                                                                     1                           1

 

     (ii)    anywhere on last line sloping down                                                                                                     1                         1

 

                       

TOTAL  / 11

 

 

                                                                                                                                                                     

 

QUESTIONSHEET 16

 

(a) speed=distance/time                                                                                                                                 1                             1

     =15 / 0.6                                                                                                                                                  1                                  1

     =25m/s                                                                                                                                                    1                                  1

 

(b) 63 –15 = 48m                                                                                                                                          1                             1

 

(c) none                                                                                                                                                            1                                                                                                                                                                              1

 

(d) Two from

     mass of car, friction surfaces e.g. brakes,

     road condition, tyres                                                                                                                                  2                             2

    

 

TOTAL  / 7

             

         

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTIONSHEET 17

 

(a)

    

 

 

 

 

 

 

 

 

 

 

 

 

 


     Deduct one mark for each incorrectly plotted point                                                                                     3              

 

(b) (i)    Kris: 4 ms-1                                                                                                                                                                                   1                                  1

            Joshua: 3 ms-1                                                                                                                                                                              1                                  1

              average speed = distance                                                                                                                1

                                           time                                                                                                                                             1

 

 

     (ii)    Kris’s car                                                                                                                                         1                                  1

 

(c) kinetic energy to heat and sound.                                                                                                               1                         1

 

 

                                                                                                                                                  TOTAL  / 8

 

 

 

                               

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                               

QUESTIONSHEET 18

 


(a)    

                  

 

 

 

 

 

 

 

 

 

 

 

Text Box: Speed (mph)
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


30

 

20

 
                  

 

 

10

 

100

 

90

 

10

 

30

 

40

 

80

 

20

 
 

 

 

 

 

 


                  

                   sensible scales                                                                                                                           1                                  1

                   correct plotting                                                                                                                           1                             1

                   correct lines drawn                                                                                                                     1                             1                                                                                                                                                                               

   

(b) 50 mph                                                                                                                                                    1                                  1

 

(c) (i)      distance travelled while reacting                                                                                                      1                         1

 

     (ii)     distance travelled while braking                                                                                                        1                         1

 

(d) Two from

     wet roads, driver may have drunk alcohol, driver tired,

     bald tyres                                                                                                                                                 2                                  2

 

          TOTAL  / 8

 

 

 

 

QUESTIONSHEET 19

 

(a) Gravity/ weight                                                                                                                                         1                             1

 

(b) stays the same.                                                                                                                                        1                             1                                                                                                                                                                                 

 

(c) Write answers are:-                                                                                                                                   

 

     (i)    Unbalanced                                                                                                                                      1                                  1                                                                                                                                                                                 

    

     (ii)    Unbalanced                                                                                                                                      1                                   1                                                                                                                                                              

 

     (iii)   Balanced                                                                                                                                          1                                  1                                                                                                                                                                                 

 

(d) Constant/ steady/ same speed                                                                                                                   1                           1

 

(e) Stage 1:  Acceleration                                                                                                                               1                           1                                                                                                             Resultant force is downward                           1

                   Resultant force is downward                                                                                                       1

     Stage 2:  Acceleration                                                                                                                               1                           1

                   Resultant force is upward.                                                                                                          1                           1

 

 

TOTAL  / 10

 

 

 

QUESTIONSHEET 20

 

(a) 40m/s                                                                                                                                                      1                                       1

 

(b) (i)    train travelling at 40m/s (constant speed)                                                                                            1                    1

 

     (ii)    train decelerates                                                                                                                               1                                  1

 

(c) B                                                                                                                                                            1                                       1

 

(d) distance = speed ΄ time                                                                                                                            1                           1

     time = 200 – 50 s                                                                                                                                      1                             1

     distance = 40 ΄ 150                                                                                                                                  1                             1

     = 600 m                                                                                                                                                       1                                  1

           

 

TOTAL  / 8