Work and Energy
The main source of heat is
moon
stars
sun
Mars
sun
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The energy use in solar cookers, solar distillation plants, solar power plants is known asA. chemical energy
B. solar energy
C. thermal energy
D. nuclear energy
The capacity of a body to do work is called
A. energy
B. work load
C. kinetic energy
D. potential energy
During the interconversion of energy from one form to other forms, the total energy at any time remains
A. constant
B. zero
C. increasing
D. decreasing
The energy stored in coal is
A. kinetic energy
B. potential energy
C. chemical energy
D. nuclear energy
Fossil fuels are burnt to produce electricity in
A. thermal power
B. chemical power
C. nuclear power
D. solar cars
The water stored in damns is used for irrigation and also to generate
A. heat energy
B. electrical energy
C. thermal energy
D. chemical energy
As the rain falls, the potential energy changes to
A. thermal energy
B. chemical energy
C. kinetic energy
D. nuclear energy
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