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Stretching springs

7th grade (Year 8 in England) · 16 questions · Common Core: NGSS.MS-PS2-2, NGSS.HS-PS2-1 · England: KS3 Physics: Motion and forces (forces and elasticity), GCSE Combined Science: Forces (required practical: force and extension)

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Score/ 16

  1. Question 1

    What does it mean if a spring goes past its elastic limit?

    • A. It becomes stronger
    • B. Its spring constant doubles
    • C. It snaps back faster
    • D. It will not return to its original length when the force is removed

  2. Question 2

    A spring is 20 cm long. When a weight is hung on it, it is 24 cm long. What is the extension, in cm?

    Answercm

  3. Question 3

    A spring has a spring constant of 25 N/m. What force is needed to stretch it by 2 cm, in N? (F = k × e, with e in metres)

    AnswerN

  4. Question 4

    A graph of force against extension is a straight line through the origin. What does this show?

    • A. The spring has passed its elastic limit
    • B. The spring is broken
    • C. Extension does not depend on force
    • D. Force and extension are directly proportional

  5. Question 5

    A spring is 20 cm long. When a weight is hung on it, it is 28 cm long. What is the extension, in cm?

    Answercm

  6. Question 6

    A force of 2 N stretches a spring by 5 cm. What is the spring constant, in N/m?

    AnswerN/m

  7. Question 7

    What does it mean if a spring goes past its elastic limit?

    • A. Its spring constant doubles
    • B. It snaps back faster
    • C. It becomes stronger
    • D. It will not return to its original length when the force is removed

  8. Question 8

    A spring is 10 cm long. When a weight is hung on it, it is 14 cm long. What is the extension, in cm?

    Answercm

  9. Question 9

    A force of 0.5 N stretches a spring by 2 cm. What is the spring constant, in N/m?

    AnswerN/m

  10. Question 10

    What does it mean if a spring goes past its elastic limit?

    • A. It snaps back faster
    • B. It becomes stronger
    • C. Its spring constant doubles
    • D. It will not return to its original length when the force is removed

  11. Question 11

    A spring is 20 cm long. When a weight is hung on it, it is 22 cm long. What is the extension, in cm?

    Answercm

  12. Question 12

    A force of 7.5 N stretches a spring by 15 cm. What is the spring constant, in N/m?

    AnswerN/m

  13. Question 13

    A spring obeys Hooke's law. What happens to the extension if the force is doubled?

    • A. it doubles
    • B. it quadruples
    • C. it stays the same
    • D. it halves

  14. Question 14

    A spring is 25 cm long. When a weight is hung on it, it is 33 cm long. What is the extension, in cm?

    Answercm

  15. Question 15

    A force of 2.5 N stretches a spring by 5 cm. What is the spring constant, in N/m?

    AnswerN/m

  16. Question 16

    A spring obeys Hooke's law. What happens to the extension if the force is doubled?

    • A. it quadruples
    • B. it doubles
    • C. it halves
    • D. it stays the same

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  1. It will not return to its original length when the force is removed
  2. 4 cm
  3. 0.5 N
  4. Force and extension are directly proportional
  5. 8 cm
  6. 40 N/m
  7. It will not return to its original length when the force is removed
  8. 4 cm
  9. 25 N/m
  10. It will not return to its original length when the force is removed
  11. 2 cm
  12. 50 N/m
  13. it doubles
  14. 8 cm
  15. 50 N/m
  16. it doubles