The amount of work done by a force is equal to product of
Force and power
Force and displacement of point of application of the force in the direction of force.
Force and displacement of point of application of the force in the opposite direction of force.
Force and distance that moved by object
When a swinging simple pendulum is at its mean position?
P.E=0
K.E=0
Mechanical energy = 0
None of the above
When a body is thrown up,the work done by the gravity on the body is
Zero
Positive
Negative
Maximum
Horse power is the unit of
Work
Force
Energy
Power
If the velocity of a moving body is doubled,the kinetic energy will be
Doubled
Halved
Four times
One-fourth
A body of mass 5 kg is taken from a height 5 m to 10 m. Then the increase in its potent energy is __________ . (take g = 10 ms-2)
25 J
250 J
150 J
100 J
Which of the following expressions does not represent power?
P=w/t
P=FV cosθ
P=FV
P=Fa/t
A body at height possesses:
Kinetic energy
potential energy
solar energy
heat energy
In physics, which of the following term is used in relation to the displacement produced by the force?
None of these
A light mass and a heavy mass have equal momentum, then which will have more kinetic energy?
lighter mass
heavy mass
both are equal
none of these
