Advertisements
Advertisements
Question
Give one example when:
Electric energy changes to mechanical energy.
Solution
In an electric motor, electric energy changes to mechanical energy.
APPEARS IN
RELATED QUESTIONS
Select the correct alternatives
The energy stored in an electric cell is
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
What is solar energy?
State two disadvantages of producing electricity from solar energy.
Name two examples in which the mechanical energy of a system remains constant.
A ball of mass 0.5 kg slows down from a speed of 5m/s-1 to that of 3m/s-1. Calculate the change in kinetic energy of the ball.
Give three examples of bodies possessing potential energy.
State the energy changes which take place when:
A battery lighting up a bulb.
A body of mass 0.2 kg falls from a height of 10 m to a height of 6 m above the ground. Find the loss in potential energy taking place in the body. [g = 10ms−2]
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
