Science 3 · Unit 5: Forces and magnets · Cambridge Primary Science Stage 3

Questions

1. 1. What are the two poles of a magnet called?

   • up and down
   • red and green
   • north and south
   • east and west
   Check

2. 2. Which pole is sometimes coloured red?

   • the north pole
   • the south pole
   Check

3. 3. What happens when a north pole is put near a south pole?

   • Nothing happens.
   • They repel.
   • They melt.
   • They attract.
   Check

4. 4. What happens when two north poles are put together?

   • They change colour.
   • They attract.
   • They repel.
   • They stick together.
   Check

5. 5. What does 'repel' mean?

   • stick
   • push away
   • melt
   • pull together
   Check

6. 6. Which pole attracts a metal paperclip?

   • only the south pole
   • both poles
   • neither pole
   • only the north pole
   Check

7. 7. Sofia writes 'Two north poles attract each other.' Is she right?

   • Yes
   • No
   Check

8. 8. Sofia writes 'Magnets repel non-magnetic materials.' Is she right?

   • Yes
   • No
   Check

9. 9. What do we call the push and pull force of a magnet?

   • friction
   • electricity
   • magnetism
   • gravity
   Check

10. 10. What does a wind turbine use magnets for?

    • to make wind
    • to keep birds away
    • to pick up metal
    • to make electricity
    Check

11. 11. What does an electric motor use magnets for?

    • to make sound only
    • to make things move
    • to make light
    • to make heat only
    Check

12. 12. How does a crane use a magnet?

    • to make electricity
    • to lift wood
    • to pick up and sort metal
    • to dig soil
    Check

13. 13. You know which end of a bar magnet is north. A horseshoe magnet's end repels it. What is that end?

    • north
    • south
    Check

14. 14. Name one shape of magnet.

    • glass ball
    • triangle of wood
    • horseshoe
    • plastic cube
    Check