Lesson 6.5.4.2.2

6.5.4.2.2 Newton's Second Law Quiz: AQA Combined Science, Unit 22

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 6.5.4.2.2, Newton's Second Law: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 22: Forces, written with Revision Ninja.

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The 20 questions

  1. What is the standard unit of force in F = ma?

    • Joule
    • Watt
    • Pascal
    • Newton

  2. In Newton's Second Law, acceleration is inversely proportional to what?

    • Velocity
    • Force
    • Distance
    • Mass

  3. What does the mathematical symbol ∝ represent?

    • Is proportional to
    • Is greater than
    • Is identical to
    • Is approximately equal

  4. Which symbol is used to indicate an approximate value?

    • Therefore
    • Proportional
    • Identical
    • Approximately equal

  5. A 2 kg object experiences a resultant force of 10 N. Its acceleration is:

    • 20 m/s2
    • 0.2 m/s2
    • 12 m/s2
    • 5 m/s2

  6. A 1500 kg car accelerates at 2 m/s2. The resultant force is:

    • 3500 N
    • 750 N
    • 3000 N
    • 1500 N

  7. The same 12 N force acts on a 3 kg object. Its acceleration is:

    • 0.25 m/s2
    • 9 m/s2
    • 36 m/s2
    • 4 m/s2

  8. If the mass of an object is doubled while the resultant force stays the same, the acceleration:

    • Stays the same
    • Halves
    • Quadruples
    • Doubles

  9. If the resultant force on an object of constant mass is doubled, the acceleration:

    • Quadruples
    • Halves
    • Doubles
    • Stays the same

  10. How is inertial mass defined using force and acceleration?

    • Force times acceleration
    • Mass times velocity
    • Weight over gravity
    • Force over acceleration

  11. What is inertial mass a measure of?

    • Resistance to acceleration
    • Total momentum
    • Gravitational pull
    • Thermal energy

  12. An 800 kg car has a 4000 N driving force and resistive forces are negligible. Its acceleration is about:

    • 50 m/s2
    • 0.2 m/s2
    • 5 m/s2
    • 3200 m/s2

  13. A 0.5 kg ball accelerates at 20 m/s2 under a resultant force of:

    • 40 N
    • 0.025 N
    • 10 N
    • 20 N

  14. (Harder) A 1200 kg car speeds up from 10 m/s to 20 m/s in 5 s. The resultant force is:

    • 1200 N
    • 4800 N
    • 2400 N
    • 120 N

  15. (Harder) A 4 kg object has a 30 N forward force and a 10 N backward force. Its acceleration is:

    • 7.5 m/s2
    • 2.5 m/s2
    • 5 m/s2
    • 40 m/s2

  16. (Harder) A 2 kg object accelerates at 3 m/s2. The force needed to make it accelerate at 6 m/s2 is:

    • 6 N
    • 12 N
    • 24 N
    • 36 N

  17. (Harder) A force of 60 N gives an object an acceleration of 4 m/s2. The object's mass is:

    • 0.07 kg
    • 240 kg
    • 64 kg
    • 15 kg

  18. Why do large vehicle accelerations require large forces?

    • Energy is conserved
    • F equals ma
    • Momentum is zero
    • Gravity is constant

  19. Rearranged to find mass, F = ma gives:

    • m = F + a
    • m = F / a
    • m = F x a
    • m = a / F

  20. A 60 kg sprinter accelerates at 3 m/s2. The resultant force on the sprinter is:

    • 1800 N
    • 180 N
    • 63 N
    • 20 N

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