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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
State the energy change in the following device while in use:
A loudspeaker
Name six different forms of energy?
State two characteristic which a source of energy must have.
Select the renewable and non-renewable sources of energy from the following:
Wood
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
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
Identify the type of energy possessed by the body in each of the following:
(a) A coiled spring of the toy car
(b) A hammer which is raised
(c) A stone shot from a catapult
(d) Water stored in the overhead tank
(e) A tadpole moving in water.
What kind of energy is possessed in a situation when?
A fish moving in the water.
What kind of energy is possessed in a situation when?
A shooting arrow.
Give one example when:
Electric energy changes to potential energy.
