Physics GK · all questions

Work, Energy and Power
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Q281

The water flowing in a hydroelectric power station can run the turbine because it containes.

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Q282

When displacement occurs, the work done by the force is considered to be negative.

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Q283

A boy of 50 kg mass climbs 43 stairs in 10 seconds. If the height of each stair is 15cm then find its power?

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Q284

A body has a free fall from a height of 20m. After falling through a distance of 5 m, the body would

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Q285

Which of the following is not a characteristic of work?

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Q286

Which of the following work done does not depend-

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Q287

What is the definition of mass?

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Q288

The kinetic energy of which particle is maximum-

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Q289

Which of the following is not a perfectly inelastic collision?

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Q290

A snowboard pulled up by a two rope travels at the rate of 5 m/sec up a mountain. If 3000 watt of power is used, what force was applied to it?

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Q291

What is the definition of power in Physics?

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Q292

When an object of 14 kg is at a height of 5 m from the ground, then find the energy contained in it? (g = 9.8ms^-2)

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Q293

An object of mass 10kg is placed at the height of 6 meter from the ground. Calculate the potential energy stored in it. (g = 9.8 m/sec²)

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Q294

Rockets work on the principle of . . . . . . . . conservation.

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Q295

A man is standing on a sensitive balance. If he inhales deeply, the reading of the balance

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Q296

Potential energy and kinetic energy are the type of . . . . . . . .?

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Q297

A girl whose weight is 200 N, climbs on a tree which height is 2-meter. What was the work done by the girl after climbing the tree? (g = 10m/sec²)

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Q298

What is the energy exerted due to the position and shape taken by an object?

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Q299

During the free falling of an object-

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Q300

After a shell explodes, many pieces fly off in different directions. What is conserved in this situation?

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