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The energy stored in the water of the dam is:
NET
NUST Entry Test
Physics
Work and Energy
A car and a bus moving with the same kinetic energy are acted upon by the same retarding force, then:
NET
NUST Entry Test
Physics
Work and Energy
Kinetic energy of a body of mass 2 kg is 8 J. Kinetic energy of a body of mass 4 kg moving with same velocity as that of first body, will be:
NET
NUST Entry Test
Physics
Work and Energy
Work-energy principle states that work done on the body by applied force is equal to change in:
NET
NUST Entry Test
Physics
Work and Energy
When velocity of a moving body is doubled, the quantity which is also doubled is its:
NET
NUST Entry Test
Physics
Work and Energy
The work done on a body against force of gravity is called:
NET
NUST Entry Test
Physics
Work and Energy
One joule is defined as:
NET
NUST Entry Test
Physics
Work and Energy
A body of weight 1 N has a kinetic energy of 1 J when its speed is:
NET
NUST Entry Test
Physics
Work and Energy
If velocity of a moving body is doubled, then:
NET
NUST Entry Test
Physics
Work and Energy
Energy stored in the spring of a watch is called:
NET
NUST Entry Test
Physics
Work and Energy
The sum of K.E and P.E of a falling body is:
NET
NUST Entry Test
Physics
Work and Energy
Mechanical energy can be converted into:
NET
NUST Entry Test
Physics
Work and Energy
Work is product of:
NET
NUST Entry Test
Physics
Work and Energy
The work done on a body will be zero if:
NET
NUST Entry Test
Physics
Work and Energy
A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes an angle of $60^{\circ}$ with the horizontal. The work done by the boy is:
NET
NUST Entry Test
Physics
Work and Energy
If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:
NET
NUST Entry Test
Physics
Work and Energy
When a wall is pushed by a person very strongly, he has done:
NET
NUST Entry Test
Physics
Work and Energy
The work done by a force keeping an object in circular motion with constant speed is:
NET
NUST Entry Test
Physics
Work and Energy
Which force is not a conservative force?
NET
NUST Entry Test
Physics
Work and Energy
A labourer carrying a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:
NET
NUST Entry Test
Physics
Work and Energy
A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:
NET
NUST Entry Test
Physics
Work and Energy
A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against friction is:
NET
NUST Entry Test
Physics
Work and Energy
When a body moves against the force of friction on a horizontal plane, the work done by the body is:
NET
NUST Entry Test
Physics
Work and Energy
If the force applied is parallel to the direction of motion, then work done is:
NET
NUST Entry Test
Physics
Work and Energy
A 2 kg block is held 1 m above the floor for 50 sec. The work done is:
NET
NUST Entry Test
Physics
Work and Energy
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