Conservation of mechanical energy

Conservation of mechanical energy Quiz

Spec 3.1 · Edexcel International A Level Further Maths: Quiz

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  1. 1. A ball is dropped from rest from 2020 m. Find its speed as it hits the ground.

    • A. 14.014.0 m s−1^{-1}
    • B. 19.819.8 m s−1^{-1}
    • C. 392392 m s−1^{-1}
    • D. 9.99.9 m s−1^{-1}

  2. 2. A particle is projected vertically upwards at 1414 m s−1^{-1}. Find the greatest height reached.

    • A. 2020 m
    • B. 1414 m
    • C. 1.431.43 m
    • D. 1010 m

  3. 3. A 5050 kg skier slides 1010 m from rest down a 30∘30^\circ slope against a constant resistance of 100100 N. Find the kinetic energy at the bottom.

    • A. 14501450 J
    • B. 24502450 J
    • C. 10001000 J
    • D. 34503450 J

  4. 4. A particle slides from rest down two different smooth slopes from the same vertical height. Compare its speeds at the bottom.

    • A. Greater on the steeper slope
    • B. Greater on the longer slope
    • C. The same for both
    • D. Dependent on the mass

  5. 5. A 0.50.5 kg ball moves at 88 m s−1^{-1} at a point 22 m above the ground. Find its speed on reaching the ground (ignore air resistance).

    • A. 8.08.0 m s−1^{-1}
    • B. 103103 m s−1^{-1}
    • C. 5.15.1 m s−1^{-1}
    • D. 10.210.2 m s−1^{-1}

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