Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 4

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A ball of $4 kg$ mass moving with velocity $40 m s^{- 1}$ in east direction collides with another ball of $6 kg$ mass moving with velocity $20 m s^{- 1}$ in same direction. After collision two balls stick together, then loss of kinetic energy is

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Important Questions on Work, Energy and Power

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 5

What should be the minimum height $h$ so that the body of mass $m$ just completes the loop of radius $1 m$ ?

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 6

kWh

is commercial unit of _____.

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 7

The instantaneous power is expressed as

P = F

_____

(θ) v

in terms of force

\vec{F}

and velocity

\vec{v}

.

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 8

When a particle connected with string moves in a vertical circle, then tension is maximum at _____ point.

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 9

Does

K E

depend upon the direction of motion?

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 10

Is work done by a non-conservative force always negative. Comment.

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 12

Does the work done in raising a body depend upon how fast it is raised?

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 14

How does

P E

of a spring change when it is compressed or stretched?