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Top Scorers Of MDCAT Physics Chapter 3 Work ,Energy & Power Online Test MCQ`s Test

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Zunaira Jabeen Zunaira 12 - Sep - 2025 12 Min 02 Sec 19/20
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mmms khokhar 05 - Dec - 2024 05 Min 41 Sec 12/20
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MCAT Physics Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	Two bodies moving towards each other collide and move away in opposite directions. There is some rise in temperature of bodies because a part of the kinetic energy is converted into	A. heat energy B. electrical energy C. nuclear energy D. mechanical energy
2	A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms¹ The KE of other mass is	A. 324 J B. 256 J C. 245 J D. 524 J
3	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 joules, the angle which the force makes with the direction of motion of the body is?	A. 0 Degree B. 30 Degree C. 60 Degree D. 90 Degree
4	An electric motor exerts a force of 40 N on a cable and pulls it by a distance of 30 m in one minute. The power supplied by the motor in watts is	A. 20 B. 200 C. 2 D. 10
5	In an explosion a body breaks up into two pieces of unequal masses. In this:	A. Both parts will have numerically equal momentum B. Lighter part will have more momentum C. Heavier part will have more momentum D. Both parts will have equal kinetic energy
6	The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?	A. 1 Joule B. 1 Electron volt C. 1 Erg D. 1 Watt
7	A 50 kg man with 20 kg load on his head climbs up 20 steps of 0.25 m height each. The work done in climbing is	A. 5 J B. 350 J C. 100 J D. 3430 J
8	The gravity does no work, when the body moves:	A. Horizontally B. Vertically upwards C. Vertically downward D. At an angle of 45o with horizontal
9	In a gravitational field when work done by gravity is negative then	A. P.E increases B. P.E decrease C. None D. P.E remains same
10	You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m. In this process you take 5 seconds. The work done by you will depend upon:	A. Mass of the book and time taken B. Weight of the book and height of the book-shelf C. Height of the book-shelf and time taken D. Mass of the book, height of the book-shelf and time taken

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MDCAT Physics Chapter 3 Work ,Energy & Power Online Test

MCQ's Test For MDCAT Physics Chapter 3 Work ,Energy & Power Online Test

MDCAT Physics Chapter 3 Work ,Energy & Power Online Test

An engine pumps up 100 kg of water through a height of 10m in 5s. Given that the efficiency of the engine is 60%, what is the power of the engine? (Take g = 10ms-2)

A force of 6 N act horizontally on a stationary mass of 2kg for 4s. The kineticenergy in joule is

An elevator's motor produces 3000 W power. The speed With Which it can lift a 1000 kg load is:

The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?

A light and a heavy body have equal momenta. Which one has greater K.E?

A body is dropped from a height of 20 m and rebounds to a height of 10 m. the loss of energy is:

A motor boat is travelling with a speed of 3.0 m/sec. If the force on it due to water flow is 500 N, the power of the boat is

A stone is thrown up from the surface of earth when it reaches at maximum height. its total energy is equal to

The same retarding force is applied to stop a train. The train stops after 80 m. If the speed is doubled, then the Stopping distance will be:

In a gravitational field when work done by gravity is negative then

The momentum of a particle is numerically equal to its K.E. What is the velocity of a particle?

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 joules, the angle which the force makes with the direction of motion of the body is?

The energy stored in wound watch spring is

Which of the following is a unit of energy?

Which of the following types of force can do no work on the particle on which it acts?

If the momentum of a body is increased n times, its kinetic energy increases:

A person weighing 20 mg walks on a level platform with a speed of 2 ms-1 . The work by the person against the force of gravity is:

Two bodies moving towards each other collide and move away in opposite directions. There is some rise in temperature of bodies because a part of the kinetic energy is converted into

Kinetic energy of a body moving with speed of 10 ms-1 is 30 J. If its speed becomes30 ms-1 then its K.E becomes

In an explosion a body breaks up into two pieces of unequal masses. In this:

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Top Scorers Of MDCAT Physics Chapter 3 Work ,Energy & Power Online Test MCQ`s Test

MCAT Physics Chapter 3 Important MCQ's

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An engine pumps up 100 kg of water through a height of 10m in 5s. Given that the efficiency of the engine is 60%, what is the power of the engine? (Take g = 10ms^-2)