Level 3

1.      The drawing shows a torch.

(a)     The torch is switched on but does not work. 
Tick three things which could be wrong.

there is no battery                                the glass is broken    

the plastic case is broken                      the switch is broken    

the bulb is broken                                 the battery is cold      

3 marks

         The beam of light from another torch is shone onto a mirror.

         The drawing below shows this.

(b)     The light beam is reflected from the mirror.

         Which line, A, B, C or D, shows its direction? . A B C D

1 mark

2.      The drawings show four objects.

         John tests each of the objects with the apparatus shown below.
He puts both of the wires A and B on each object to see if the bulb lights.

(a)     Fill in the results table.  Two have been done for you.  

3 marks

         John then tests the same objects with a magnet to see if it attracts them.

(b)     Fill in the results table.  Two have been done for you.  

  3 marks

3.      The drawing shows a man moving a wheelbarrow full of bricks.

(a)     Tick the boxes by two forces on the wheelbarrow.

the weight of the bricks                                         

the speed of the wheelbarrow                               

the size of the wheel                                              

the energy of the wheelbarrow                              

the push of the man's hands on the handles              

the weight of the man                                            

2 marks

(b)     The man lets go of the handles and the wheelbarrow hits the ground while it is still moving. The wheelbarrow soon stops moving forward.

Give the name of the force which makes the wheelbarrow stop moving forward.

1 mark

(c)     One brick drops off the wheelbarrow.

What effect does the force of gravity have on the speed of the brick as it falls?

1 mark

4.      The table shows the speed at which sound travels through different materials.

(a)     Does sound travel fastest through solids or liquids or gases?

1 mark

(b)     Sound travels through air. Air is mostly nitrogen and oxygen.

         Use the information in the table to suggest the speed of sound in a mixture of nitrogen and oxygen.

The speed of sound in this mixture is about m/s

1 mark

(c)     Tom and Zoe make a string telephone.
They use two empty tin cans joined by a piece of string.

         Tom and Zoe are 5 m apart.
Tom talks quietly into one tin can, and Zoe holds the other tin can to her ear.
If they keep the string tight, the sound of Tom's voice travels along the string.

(i)      How does the sound travel along the string to Zoe?

1 mark

(ii)     How does the tin can at Zoe's end make a sound?

1 mark