Advertisements
Advertisements
प्रश्न
What do you understand by mechanical energy?
Advertisements
उत्तर
The energy possessed by the body due to its state or its motion is called mechanical energy.
संबंधित प्रश्न
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
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 changes in the following case while in use:
an electric toaster.
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
State the energy changes which take place in Electricity is obtained from solar energy.
Name a device in which solar energy is converted into electricity state its two uses.
State the energy changes which take place when:
Water stored in dams rotates turbine connected to a dynamo.
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
Find out the types of energy from the following puzzle.
