Hooke's law

Hooke's law Quiz

Spec 3.1 · Edexcel A-Level Further Maths: Quiz

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5 questions, one answer each

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  1. 1. A string has λ=20\lambda=20 N and natural length 0.50.5 m. What is the tension at an extension of 0.10.1 m?

    • A. 44 N
    • B. 11 N
    • C. 1010 N
    • D. 4040 N

  2. 2. A string of natural length 22 m has tension 1515 N when extended by 0.50.5 m. What is its modulus of elasticity?

    • A. 3.753.75 N
    • B. 6060 N
    • C. 7.57.5 N
    • D. 3030 N

  3. 3. A 22 kg particle hangs from a string with λ=98\lambda=98 N and l=1l=1 m. What is the extension in equilibrium?

    • A. 0.40.4 m
    • B. 0.50.5 m
    • C. 0.20.2 m
    • D. 1.21.2 m

  4. 4. Which statement is correct?

    • A. A string can exert a thrust if compressed
    • B. A string has tension when its length is less than its natural length
    • C. A spring cannot be compressed
    • D. A spring can exert a thrust when compressed

  5. 5. A 0.50.5 kg particle on a smooth horizontal table is attached to a string with λ=30\lambda=30 N and l=1l=1 m, stretched to 1.51.5 m and released. What is its initial acceleration?

    • A. 6060 m s−2^{-2}
    • B. 1515 m s−2^{-2}
    • C. 3030 m s−2^{-2}
    • D. 2020 m s−2^{-2}

Quiz