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प्रश्न
Name the energy changes for the following
human body
उत्तर
Chemical energy obtained from food is converted into mechanical energy and heat energy in muscles.
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संबंधित प्रश्न
State two factors on which the kinetic energy of a moving body depends.
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
Name the type of energy (kinetic or potential) possessed by the following:
Water flowing in a river.
State the work energy theorem.
State the energy changes in the following case while in use:
an electric cell in a circuit
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
Give three examples of bodies possessing potential energy.
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]
Match the pairs.
| Group 'A' | Group 'B' | ||
| (1) | Rolling object | (a) | Heat energy |
| (2) | Food | (b) | Atomic energy |
| (3) | Stretched bow | (c) | Kinetic energy |
| (4) | Sunlight | (d) | Potential energy |
| (5) | Uranium |
(e)
|
Chemical energy
|
