Elastic potential energy

Elastic potential energy Quiz

Spec 2.2 · Edexcel International A Level Further Maths: Quiz

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  1. 1. A string with λ=40\lambda=40 N and natural length 0.50.5 m is stretched by 0.20.2 m. The energy stored is

    • A. 1.61.6 J
    • B. 3.23.2 J
    • C. 0.80.8 J
    • D. 1616 J

  2. 2. The energy stored in a spring is 66 J when the extension is xx. When the extension is 2x2x it is

    • A. 1212 J
    • B. 1818 J
    • C. 2424 J
    • D. 3636 J

  3. 3. A particle is released from rest at the fixed end of a vertical string and falls until it first stops. At that point which energy is zero?

    • A. Elastic potential energy
    • B. Kinetic energy
    • C. Gravitational potential energy
    • D. Total energy

  4. 4. A spring (λ=20\lambda=20 N, natural length 0.40.4 m) is stretched from extension 0.10.1 m to extension 0.30.3 m. The work done is

    • A. 11 J
    • B. 22 J
    • C. 0.40.4 J
    • D. 44 J

  5. 5. A 0.50.5 kg particle on a smooth horizontal table is released with a spring extended by 0.20.2 m (λ=20\lambda=20 N, l=0.4l=0.4 m). Its speed at natural length is

    • A. 44 m s−1^{-1}
    • B. 22 m s−1^{-1}
    • C. 2\sqrt2 m s−1^{-1}
    • D. 11 m s−1^{-1}

Quiz