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PHYSICS

Physics
How much calorie of energy is released by a boiled egg ?

60
50
40
77

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Physics
A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum:

Just before it touches the ground
When it touches the ground
When it is just on the half-way
Just after it is dropped

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Physics
A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is:

150 J
100 J
75 J
50 J

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Physics
Gasoline is useful in cars because it has

Kinetic energy
Electrical potential energy
Gravitational potential energy
Chemical potential energy

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Physics
Electric Motor converts ________ energy to mechanical energy

Electrical
Chemical
Sound
Mechanical

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