Jasvinder Kaur Randhawa Solutions for Exercise 1: ADDITIONAL QUESTIONS SOLVED

The energy possessed by an oscillating pendulum of a clock is _____.

The gravitational potential energy of an object is due to :

A ball is dropped from the height of $10 \mathrm{m}$.

If the velocity of the body is doubled, its kinetic energy _____.

How much time will be required to perform $520 \mathrm{J}$ of work at the rate of $20 \mathrm{W}$?

A student carries a bag weighing $5 \mathrm{kg}$ from the ground floor to his class on the first floor that is $2 \mathrm{m}$ high. The work done by the boy is ______.

($\mathrm{g}=10 \mathrm{m}/{\mathrm{s}}^2$)

The work done is $0$ if :

One unit of electrical energy is equal to _____.