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Physics

Physics
Acceleration is the rate of change of

Jounce
Jerk
Speed
Velocity

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Physics
One watt-hour is equivalent to

6.3 x 10-7 J
3.6 x 10-3 J
3.6 x 103 J
6.3 x 103 J

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Physics
In a refrigerator what produces the cooling ?

None of these
The sudden expansion of a compressed gas
The evaporation of a volatile liquid
The ice which deposits on the freezer

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Physics
The work done by the string of a simple pendulum during one complete oscillation is equal to

Zero
Kinetic energy of the pendulum
Total energy of the pendulum
Potential energy of the pendulum

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Physics
While ascending a hill, the driver of the vehicle keeps the gear ratio

Less than 1
Greater than 1
Equal to 1
Either equal to or greater than 1

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Physics
If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will

None of these
Fall in front of him
Fall behind him
Fall into his hand

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