Science 6 · Unit 5: Forces and electricity · Cambridge Primary Science Stage 6

Questions

1. 1. Which of these is an effect of a force?

   • changing its smell
   • changing its mass
   • changing its colour
   • changing the shape of an object
   Check

2. 2. You blow a ping pong ball through a straw. What effect does the force have?

   • It makes the ball move.
   • It makes the ball heavier.
   • It changes the ball's shape.
   • It has no effect.
   Check

3. 3. A rolling ball hits a book. What does the force from the book do?

   • changes its colour
   • speeds it up
   • makes it float
   • stops the moving ball
   Check

4. 4. The ball rolls more slowly on a tablecloth. Why?

   • There is more friction.
   • There is less gravity.
   • There is more upthrust.
   • The ball gets heavier.
   Check

5. 5. You flick a ball to a friend, who flicks it to someone else. What effect does each flick have?

   • It changes the ball's shape.
   • It changes the ball's direction.
   • It makes the ball heavier.
   • It stops the ball forever.
   Check

6. 6. Which forces act on a ball resting on a table?

   • friction only
   • gravity and the normal force
   • thrust and drag
   • no forces at all
   Check

7. 7. Arun cracks an egg into a bowl. What effect does the force have?

   • It makes it heavier.
   • It changes its direction only.
   • It makes it move faster.
   • It changes the shape of the egg.
   Check

8. 8. Zara pedals her bike faster. What effect does the force have?

   • It changes its colour.
   • It changes the bike's speed.
   • It changes the bike's shape.
   • It stops the bike.
   Check

9. 9. Sofia pushes open a door. What effect does the force have?

   • It makes the door heavier.
   • It makes the door smaller.
   • It changes the door's mass.
   • It makes the door move.
   Check

10. 10. A table tennis player hits the ball back. What effects does the force have?

    • It changes the ball's direction and speed.
    • It stops the ball forever.
    • No effect.
    • It makes the ball heavier.
    Check

11. 11. A goalkeeper catches a ball. What effect does the force have?

    • It changes its colour.
    • It stops the ball.
    • It changes its mass.
    • It speeds it up.
    Check

12. 12. On a force diagram, what does the length of an arrow show?

    • the mass of the object
    • the size of the force
    • the colour of the object
    • the time taken
    Check

13. 13. A ball is bounced against a wall. Which effect of force is shown?

    • a change of direction
    • a change of colour
    • a change of temperature
    • a change of mass
    Check

14. 14. Which force slows a ball rolling across grass?

    • friction
    • upthrust
    • thrust
    • magnetism
    Check

15. 15. Squeezing a sponge shows which effect of a force?

    • a change of speed
    • a change of direction
    • making it move faster
    • a change of shape
    Check