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Chapter: 03. Energy

⁠
Energy is defined as the capacity to do _ _ _ _ _ _ _ _ _ _ _ _ _ _.
work
The SI unit of work and energy is the _ _ _ _ _ _ _ _ _ _ _ _ _ _, named in honour of a famous physicist.
joule
One _ _ _ _ _ _ _ _ _ _ _ _ _ _ is defined as the amount of heat energy needed to raise the temperature of one gram of water by 1°C.
calorie
One kilocalorie is equal to approximately _ _ _ _ _ _ _ _ _ _ _ _ _ _ joules.
4200 (or 4186)
The total mechanical energy of a body is equal to the sum of its potential energy and _ _ _ _ _ _ _ _ _ _ _ _ _ _ energy. "* kinetic
The word kinetic comes from the Greek word “kinesis”, which means _ _ _ _ _" _ _ _ _ _ _ _ _ _.
motion
The kinetic energy of a moving object depends on its mass and its _ _ _ _ _ _ _ _ _ _ _ _ _ _.
speed
The energy stored in an object by virtue of its position above the ground or a change in its shape is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ energy.
potential
Burning fuels like petrol, diesel, CNG, or LPG produces _ _ _ _ _ _ _ _ _ _ _ _ _ _ energy, which is used to run automobiles.
heat
A very strong beam of light energy is capable of moving tiny particles such as _ _ _ _ _ _ _ _ _ _ _ _ _ _.
electrons
The energy possessed by a magnet that allows it to attract metals like iron and nickel is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ energy.
magnetic
Sound energy is produced by _ _ _ _ _ _ _ _ _ _ _ _ _ _ bodies.
vibrating
The food we eat contains stored _ _ _ _ _ _ _ _ _ _ _ _ _ _ energy, which undergoes changes to release energy for our muscles.
chemical
Atoms release nuclear energy when their nucleus undergoes splitting, which is known as nuclear _ _ _ _ _ _ _ _ _ _ _ _ _ _.
fission
According to the law of conservation of energy, the total amount of energy in a system always remains _ _ _ _ _ _ _ _ _ _ _ _ _ _.
constant
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