Class IX

A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is
  1. 1J
  2. 10J
  3. 100J
  4. 1000J
The energy possessed by an oscillating pendulum of a clock is
  1. kinetic energy
  2. potential energy
  3. restoring energy.
  4. mechanical energy
A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is
  1. 1J
  2. 10J
  3. 100J
  4. 1000J
The unit of work is joule. The other physical quantity that has same unit is
  1. ) power
  2. velocity
  3. energy
  4. force
. The spring will have maximum potential energy when
  1. it is pulled out
  2. it is compressed
  3. both (a) and (b)
  4. neither (a) nor (b)
Time Elapsed

HR : MIN : SEC
Question Answered
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Score out of 100
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