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CBSE Notes 2011-2012 » IX-Science-Term2

Work and Energy

The work done on an object does not depend upon the

Multiple choice question

The work done on an object does not depend upon the

Water stored in a dam possesses

Multiple choice question

Water stored in a dam possesses

An elevator with load, weighing 500 kg is moving up with a velocity of 0.2 ms-1, The power of the mo...

Multiple choice question

An elevator with load, weighing 500 kg is moving
up with a velocity of 0.2 ms-1, The power of the
motor in horse power is (1 H.P. = 746 watt)

A stone rubbed on a rough floor and placed on the skin will show heating sensation, because.

Multiple choice question

A stone rubbed on a rough floor and placed on the
skin will show heating sensation, because.

(i) Falling coconut : Kinetic energy (ii) Stone on tower :_______________

Multiple choice question

(i) Falling coconut : Kinetic energy
(ii) Stone on tower :_______________

When non-zero force and displacement are observed with zero work done, the angle between the force a...

Multiple choice question

When non-zero force and displacement are observed
with zero work done, the angle between the force
and displacement is __________.

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