Lesson 6.5.3

6.5.3 Forces and elasticity Quiz: AQA Combined Science, Unit 22

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 6.5.3, Forces and elasticity: 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. Below which point is the extension of an elastic object directly proportional to force?

    • Maximum extension
    • Limit of proportionality
    • Spring constant
    • Elastic limit

  2. What term describes deformation where an object returns to its original shape when unloaded?

    • Permanent deformation
    • Inelastic deformation
    • Plastic deformation
    • Elastic deformation

  3. What term describes deformation where an object does not return to its original shape?

    • Elastic deformation
    • Reversible deformation
    • Inelastic deformation
    • Linear deformation

  4. Which equation links force, spring constant and extension?

    • F = k + e
    • F = k / e
    • F = k x e
    • F = e squared

  5. What is the unit of spring constant?

    • Newtons per metre
    • Joules per metre
    • Newtons per second
    • Kilograms per metre

  6. What does the letter 'e' represent in the equation for elastic potential energy?

    • Energy
    • Extension
    • Elasticity
    • Effort

  7. What is the shape of a force-extension graph within the limit of proportionality?

    • Horizontal line
    • S-shaped curve
    • Straight line
    • Curve upwards

  8. How does the spring equation apply when an elastic object is compressed?

    • Uses compression
    • Uses area
    • Uses volume
    • Uses mass

  9. A spring has a spring constant of 50 N/m and an extension of 0.08 m. What is the force?

    • 4 N
    • 625 N
    • 40 N
    • 0.0016 N

  10. A force of 6 N produces an extension of 0.03 m. What is the spring constant?

    • 18 N/m
    • 0.005 N/m
    • 200 N/m
    • 2000 N/m

  11. A spring with k = 50 N/m is extended by 0.08 m. How much elastic potential energy is stored?

    • 0.16 J
    • 0.0032 J
    • 0.32 J
    • 4 J

  12. A spring stores 2 J of elastic potential energy with k = 400 N/m. What is its extension?

    • 0.2 m
    • 0.05 m
    • 0.01 m
    • 0.1 m

  13. A spring with k = 100 N/m is stretched by 0.2 m. What work is done in stretching it?

    • 10 J
    • 0.4 J
    • 20 J
    • 2 J

  14. What does an upward curve on a force-extension graph indicate about the spring constant?

    • Not constant
    • Doubles instantly
    • Becomes infinite
    • Always zero

  15. A spring is compressed by 0.04 m under a force of 12 N. What is its spring constant?

    • 30 N/m
    • 0.003 N/m
    • 300 N/m
    • 480 N/m

  16. How many forces must be applied to change the shape of a stationary object?

    • Zero forces
    • Only one
    • Exactly four
    • At least two

  17. Under what condition is the work done on a spring equal to its stored elastic potential energy?

    • Plastic deformation
    • Elastic deformation
    • Thermal expansion
    • Melting point

  18. How does stored elastic potential energy change if the extension of a spring is doubled?

    • Doubles
    • Quadruples
    • Stays the same
    • Halves

  19. If spring 1 has twice the spring constant and equal extension, how do their stored energies compare?

    • Stores four times
    • Stores zero
    • Stores double
    • Stores half

  20. If the extension of a spring doubles, by what factor does its stored elastic potential energy change?

    • 1
    • 0.5
    • 2
    • 4

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