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Newton's laws of motion

8th grade (Year 9 in England) · 16 questions · Common Core: NGSS.MS-PS2-1, NGSS.MS-PS2-2, NGSS.HS-PS2-1 · England: KS3 Physics: Motion and forces, KS4 Combined Science: Forces and motion

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Score/ 16

  1. Question 1

    You push on a wall with 50 N. What force does the wall exert on you?

    • A. 100 N
    • B. 25 N
    • C. 50 N, pushing back on you
    • D. 0 N

  2. Question 2

    Newton's laws: which statement is NOT true?

    • A. A resultant force makes an object accelerate.
    • B. An object at rest stays at rest unless a resultant force acts on it.
    • C. Seat belts help stop passengers continuing forward in a crash.
    • D. The two forces in a Newton's third law pair act on the same object.

  3. Question 3

    Newton's laws: which statement is true?

    • A. For every force there is an equal and opposite force on the other object.
    • B. A moving object needs a constant force to keep moving at steady speed in space.
    • C. The two forces in a Newton's third law pair act on the same object.
    • D. Heavier objects need less force to accelerate.

  4. Question 4

    A passenger lurches forward when a bus brakes suddenly. Which law explains this?

    • A. Newton's first law (inertia)
    • B. Hooke's law
    • C. Newton's third law
    • D. Ohm's law

  5. Question 5

    Newton's laws: which statement is NOT true?

    • A. A resultant force makes an object accelerate.
    • B. The two forces in a Newton's third law pair act on the same object.
    • C. An object at rest stays at rest unless a resultant force acts on it.
    • D. Seat belts help stop passengers continuing forward in a crash.

  6. Question 6

    Newton's laws: which statement is true?

    • A. Heavier objects need less force to accelerate.
    • B. The two forces in a Newton's third law pair act on the same object.
    • C. An object at rest stays at rest unless a resultant force acts on it.
    • D. A moving object needs a constant force to keep moving at steady speed in space.

  7. Question 7

    A rocket pushes exhaust gas downwards. Why does the rocket go up?

    • A. The gas pushes the rocket upwards with an equal and opposite force
    • B. Gravity switches off
    • C. The air underneath lifts it like a balloon
    • D. The rocket becomes lighter than air

  8. Question 8

    Newton's laws: which statement is NOT true?

    • A. A resultant force makes an object accelerate.
    • B. Seat belts help stop passengers continuing forward in a crash.
    • C. The two forces in a Newton's third law pair act on the same object.
    • D. For every force there is an equal and opposite force on the other object.

  9. Question 9

    Newton's laws: which statement is true?

    • A. Heavier objects need less force to accelerate.
    • B. A moving object needs a constant force to keep moving at steady speed in space.
    • C. The two forces in a Newton's third law pair act on the same object.
    • D. An object at rest stays at rest unless a resultant force acts on it.

  10. Question 10

    You push on a wall with 50 N. What force does the wall exert on you?

    • A. 50 N, pushing back on you
    • B. 0 N
    • C. 25 N
    • D. 100 N

  11. Question 11

    Newton's laws: which statement is NOT true?

    • A. For every force there is an equal and opposite force on the other object.
    • B. Seat belts help stop passengers continuing forward in a crash.
    • C. A resultant force makes an object accelerate.
    • D. The two forces in a Newton's third law pair act on the same object.

  12. Question 12

    Newton's laws: which statement is true?

    • A. The two forces in a Newton's third law pair act on the same object.
    • B. A moving object needs a constant force to keep moving at steady speed in space.
    • C. A resultant force makes an object accelerate.
    • D. Heavier objects need less force to accelerate.

  13. Question 13

    You push on a wall with 50 N. What force does the wall exert on you?

    • A. 0 N
    • B. 100 N
    • C. 50 N, pushing back on you
    • D. 25 N

  14. Question 14

    Newton's laws: which statement is NOT true?

    • A. Seat belts help stop passengers continuing forward in a crash.
    • B. For every force there is an equal and opposite force on the other object.
    • C. A moving object needs a constant force to keep moving at steady speed in space.
    • D. A resultant force makes an object accelerate.

  15. Question 15

    Newton's laws: which statement is true?

    • A. Heavier objects need less force to accelerate.
    • B. A moving object needs a constant force to keep moving at steady speed in space.
    • C. An object at rest stays at rest unless a resultant force acts on it.
    • D. The two forces in a Newton's third law pair act on the same object.

  16. Question 16

    A passenger lurches forward when a bus brakes suddenly. Which law explains this?

    • A. Newton's first law (inertia)
    • B. Newton's third law
    • C. Hooke's law
    • D. Ohm's law

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  1. 50 N, pushing back on you
  2. The two forces in a Newton's third law pair act on the same object.
  3. For every force there is an equal and opposite force on the other object.
  4. Newton's first law (inertia)
  5. The two forces in a Newton's third law pair act on the same object.
  6. An object at rest stays at rest unless a resultant force acts on it.
  7. The gas pushes the rocket upwards with an equal and opposite force
  8. The two forces in a Newton's third law pair act on the same object.
  9. An object at rest stays at rest unless a resultant force acts on it.
  10. 50 N, pushing back on you
  11. The two forces in a Newton's third law pair act on the same object.
  12. A resultant force makes an object accelerate.
  13. 50 N, pushing back on you
  14. A moving object needs a constant force to keep moving at steady speed in space.
  15. An object at rest stays at rest unless a resultant force acts on it.
  16. Newton's first law (inertia)