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

Questions

1. 1. What is gravity?

   • a type of magnet
   • a force that pushes things up
   • a kind of light
   • a force that pulls objects towards the centre of the Earth
   Check

2. 2. In which direction do things fall?

   • always towards the North Pole
   • sideways
   • towards the centre of the Earth
   • towards the Sun
   Check

3. 3. Why don't people at the bottom of a globe fall off the Earth?

   • There is no gravity there.
   • Gravity pulls them towards the centre of the Earth.
   • They are upside down and stuck.
   • They hold on to trees.
   Check

4. 4. Is down the same direction everywhere on Earth?

   • Yes
   • No
   Check

5. 5. What does gravity give objects?

   • weight
   • sound
   • light
   • colour
   Check

6. 6. What is weight measured in?

   • newtons
   • centimetres
   • grams
   • kilograms
   Check

7. 7. Arun says the heavier object will fall faster. They are dropped together and land at the same time. Was he right?

   • Yes
   • No
   Check

8. 8. Why is a cushion useful when dropping objects?

   • It makes them heavier.
   • It stops the objects breaking and keeps the test safe.
   • It measures their weight.
   • It makes them fall faster.
   Check

9. 9. To make the falling test fair, what must you keep the same?

   • nothing
   • the colour of the objects
   • the height you drop them from
   • the weight of the objects
   Check

10. 10. Which of these uses gravity?

    • reading a book
    • a magnet picking up a pin
    • going down a slide
    • switching on a light
    Check

11. 11. Does gravity push aeroplanes upwards?

    • Yes
    • No
    Check

12. 12. You throw a ball up into the air. Why does it come back down?

    • Magnets pull it.
    • It gets tired.
    • The air pushes it.
    • Gravity pulls it down.
    Check

13. 13. How should you choose a forcemeter to weigh an object?

    • always use the biggest one
    • any one without checking
    • always use the smallest one
    • pick one that measures up to a bit more than the object's weight
    Check