Advertisements
Advertisements
Question
What do you understand by the kinetic energy of the body?
Advertisements
Solution
The kinetic energy of a body is the energy possessed by the body by virtue of its state of motion.
RELATED QUESTIONS
State the energy change in the following device while in use:
A loudspeaker
Give one example to show the conversion of potential energy to kinetic energy when put in use.
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?
A stone lying on the top of roof.
State two advantages and disadvantages of using wind energy for producing electricity.
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
Two bodies, A and B of equal mass are kept at heights 20 m and 30 m respectively. Calculate the ratio of their potential energies.
Ocean thermal energy is due to
