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Physics (AQA Foundation)
Forces make things change

Starter quiz

  • Match the following quantities to the correct unit.
    • mass
      ⇔
      kilograms ✓
    • displacement
      ⇔
      metres ✓
    • velocity
      ⇔
      metres per second ✓
    • acceleration
      ⇔
      metres per second squared ✓
    • force
      ⇔
      newtons ✓
  • Which of the following statements about the acceleration of an object are correct?
    • The greater the resultant force, the greater the acceleration of an object.  ✓
    • The greater the resultant force, the lower the acceleration of an object.
    • The greater the mass, the greater the acceleration of an object.
    • The greater the mass, the lower the acceleration of an object.  ✓
    • Acceleration is independent of mass.
  • Which single word is used to describe slowing down due to a resultant force?
    • 'deceleration' ✓
  • A resultant force of 20 N is used to accelerate each of the following objects. Which of the objects will be travelling fastest after 5 seconds?
    • A ball of mass 0.5 kg.  ✓
    • A brick of mass 1.0 kg.
    • A bicycle and rider of mass 80 kg.
    • A motorcycle and rider of mass 150 kg.
    • A car of mass 900 kg.
  • A blue and green snooker ball, of equal mass, have resultant forces acting them for 0.1 s, 20 N on the blue ball and 40 N on the green ball. Which of the following statements are correct?
    • The balls will have equal acceleration.
    • The green ball accelerates at a greater rate than the blue ball.  ✓
    • The balls will be moving at the same speed after 0.1 s.
    • The blue ball will be moving faster after 0.1 s.
    • The green ball will be moving faster after 0.1s  ✓
  • A pupil investigates how mass affects the acceleration of a trolley using hanging masses to produce a force. What should they do with a mass when they remove it from the mass holder?
    A pupil investigates how mass affects the acceleration of a trolley using hanging masses to produce a force. What should they do with a mass when they remove it from the mass holder?
    • Place it safely on the desk.
    • Place it on top of the trolley to keep the test fair.  ✓
    • It does not matter where the mass is placed.
    • Place it back on the mass holder to keep the test fair.
    • Remove an equal mass from the top of the trolley.
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