What do you mean by sound energy?
Important Questions on Work and Energy
What type of energy is possessed by the piece of stone which is thrown away on releasing the stretched rubber strings of catapult?
Give reasons for the following: After winding the spring of watch, the hands of the watch move.
What type of energy is possessed by the stretched rubber strings of a catapult?
Explain the following: A compressed spring can do work.
Explain with reasons whether potential energy in the following cases increases or decreases:
a. a spring is compressed,
b. a spring is stretched and
c. a body is taken away against the gravitational force.
Give reasons for the following: An arrow moves forward when released from the stretched bow.
Give reason for the following: A bullet is released on firing the pistol.
Give reason for the following:
Winding the spring of a toy car makes it run on the ground.
