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Kinetic and gravitational potential energy

9th grade (Year 10 in England) · 16 questions · Common Core: NGSS.MS-PS3-1, NGSS.MS-PS3-2, NGSS.HS-PS3-1, NGSS.HS-PS3-2 · England: KS4 Combined Science: Energy

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  1. Question 1

    A ball is dropped from 10 m. Ignoring air resistance, all its gravitational potential energy becomes kinetic energy. How fast is it moving just before it lands, in m/s? Use g = 10 N/kg.

    Answerm/s

  2. Question 2

    What is the kinetic energy of a 2 kg object moving at 10 m/s? Use Eₖ = ½ m v².

    AnswerJ

  3. Question 3

    An object of mass 0.5 kg is lifted 25 m. How much gravitational potential energy does it gain? Use Eₚ = m g h with g = 9.8 N/kg.

    AnswerJ

  4. Question 4

    A ball is dropped from 20 m. Ignoring air resistance, all its gravitational potential energy becomes kinetic energy. How fast is it moving just before it lands, in m/s? Use g = 10 N/kg.

    Answerm/s

  5. Question 5

    What is the kinetic energy of a 60 kg object moving at 20 m/s? Use Eₖ = ½ m v².

    AnswerJ

  6. Question 6

    An object of mass 10 kg is lifted 25 m. How much gravitational potential energy does it gain? Use Eₚ = m g h with g = 9.8 N/kg.

    AnswerJ

  7. Question 7

    A ball is dropped from 45 m. Ignoring air resistance, all its gravitational potential energy becomes kinetic energy. How fast is it moving just before it lands, in m/s? Use g = 10 N/kg.

    Answerm/s

  8. Question 8

    What is the kinetic energy of a 2 kg object moving at 2 m/s? Use Eₖ = ½ m v².

    AnswerJ

  9. Question 9

    An object of mass 2 kg is lifted 20 m. How much gravitational potential energy does it gain? Use Eₚ = m g h with g = 9.8 N/kg.

    AnswerJ

  10. Question 10

    A ball is dropped from 45 m. Ignoring air resistance, all its gravitational potential energy becomes kinetic energy. How fast is it moving just before it lands, in m/s? Use g = 10 N/kg.

    Answerm/s

  11. Question 11

    What is the kinetic energy of a 50 kg object moving at 5 m/s? Use Eₖ = ½ m v².

    AnswerJ

  12. Question 12

    An object of mass 0.5 kg is lifted 10 m. How much gravitational potential energy does it gain? Use Eₚ = m g h with g = 9.8 N/kg.

    AnswerJ

  13. Question 13

    A ball is dropped from 20 m. Ignoring air resistance, all its gravitational potential energy becomes kinetic energy. How fast is it moving just before it lands, in m/s? Use g = 10 N/kg.

    Answerm/s

  14. Question 14

    What is the kinetic energy of a 4 kg object moving at 10 m/s? Use Eₖ = ½ m v².

    AnswerJ

  15. Question 15

    An object of mass 60 kg is lifted 2 m. How much gravitational potential energy does it gain? Use Eₚ = m g h with g = 9.8 N/kg.

    AnswerJ

  16. Question 16

    A ball is dropped from 45 m. Ignoring air resistance, all its gravitational potential energy becomes kinetic energy. How fast is it moving just before it lands, in m/s? Use g = 10 N/kg.

    Answerm/s

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  1. 14.1 m/s
  2. 100 J
  3. 122.5 J
  4. 20 m/s
  5. 12000 J
  6. 2450 J
  7. 30 m/s
  8. 4 J
  9. 392 J
  10. 30 m/s
  11. 625 J
  12. 49 J
  13. 20 m/s
  14. 200 J
  15. 1176 J
  16. 30 m/s