ECAT Pre General Science Physics Chapter 4 Work and Energy Online Test
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Question # 1
The space around the earth within which it expects a force of attraction on other bodies is known as:
Question # 2
A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:
Question # 3
The angle between centripetal force and displacement of the body moving in a circle is:
Question # 4
The work performed on an object does not depend on:
Question # 5
When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
Question # 6
A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
Question # 7
Which of the following types of force can do no work on the particle on which it acts
Question # 8
Work done in lower and bucket into the well is:
Question # 9
Which one is conservative force
Question # 10
SI Unit of work is
Question # 11
Energy stored in the spring of a watch is called
Question # 12
Work has the dimension as that of:
Question # 13
Work done is lowering the bucket into the well is:
Question # 14
The field in which work done in moving a body between two points depends upon the path followed is called:
Question # 15
Watt x second is unit of:
Question # 16
The total work done in moving the body up and then down through the same height in a gravitational field is equal to:
Question # 17
Work done is maximum when angle between force and displacement is:
Question # 18
Work is always done on a body when:
Question # 19
The value of escape velocity of Earth planet comes out to be:
Question # 20
If force and displacement are in opposite direction, the work done is taken as:
Question # 21
The consumption of energy by a 60 W bulb in 2 minutes is:
Question # 22
A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be
Question # 23
If force and displacement are in opposite direction, the work done is taken as
Question # 24
If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
Question # 25
Work-energy principle states that work done on the body by applied force is equal to change in:
Question # 26
Work has the dimensions as that of
Question # 27
A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
Question # 28
Most of the geysers occur in:
Question # 29
Area under the force displacement graph gives
Question # 30
A body moves a distance of 10 m among 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:
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