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Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
A light mass and a heavy mass have equal momentum. Which will have more kinetic energy?
(Hint : Kinetic energy K = P2/2m where P is the momentum.)
State the energy transformation on the following:
Electricity is obtained from wind energy.
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
Give one example when:
Light energy changes to chemical energy.
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
When and why do clothes smell of naphthalene?
What is the difference between the solid, liquid, and gaseous states of a substance?
