Advertisements
Advertisements
प्रश्न
The following are some of the energy transformations.
A. Electrical to light
B. Work to heat
C. Chemical to light
D. Electrical to sound
E. Mechanical to electrical
Identify the energy transformation that takes place in the following by inserting the corresponding letter in the shape provided.
(i) A candle flame
(ii) A torch is lighted
(iii) A microphone is used in a meeting
(iv) A cycle dynamo
(v) A piece of metal is being filed
Advertisements
उत्तर
(i) A candle flame - (C). Chemical to light
(ii) A torch is lighted - (A). Electrical to light
(iii) A microphone is used in a meeting - (D). Electrical to sound
(iv) A cycle dynamo - (E). Mechanical to electrical
(v) A piece of metal is being filed - (B). Work to heat
APPEARS IN
संबंधित प्रश्न
Explain how, geothermal energy is used to generate electricity.
Write true or false of the following statement.
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
How is the solar energy used to generate electricity in a solar power plant?
Name the energy changes for the following:
pendulum
What do you understand by mechanical energy?
Give one example when:
Potential energy changes to electric energy.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
