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प्रश्न
Name the energy changes for the following:
bicycle brakes
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उत्तर
Mechanical energy into heat energy.
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संबंधित प्रश्न
Name the form of mechanical energy, which is put to use.
How is wind energy used to produce electricity?
Explain the principle of producing electricity using the nuclear energy.
State the energy transformation on the following:
Electricity is obtained from wind energy.
State four ways for the judicious use of energy.
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
State the energy changes which take place in Electricity is obtained from solar energy.
State the energy transformation on the following:
Electricity is obtained from wind energy.
Give one example when:
Electric energy changes to mechanical energy.
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.
