MDCAT Physics Chapter 3 MCQ Test With Answer for ( Work ,Energy & Power)

Chapter 3 of Physics is an essential part of the MDCAT preparation. The students preparing for the exam must solve the MCQs available on this platform. For the convenience of the students, the answers are also uploaded here so the students can learn about their preparation level for the exam. The Chapter on Rotational and Circular Motion has various formulas that the students must memorize.

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

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

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MDCAT Physics Chapter 3 Work ,Energy & Power Online Test

00:00
Question # 1

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

Question # 2

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

Question # 3

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:

Question # 4

3 joules of work is done in 3 seconds, then power is:

Question # 5

A man pushes a wall and fails to displace it. He does:

Question # 6

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:

Question # 7

Initially, four identical uniform blocks, each of mass m and thickness h, are spread on a table How much work is done on the blocks in stacking them on top of one another?

Question # 8

If the velocity of a body becomes half, the kinetic energy of body will become

Question # 9

When a person lifts a body from ground work done by lifting force is?

Question # 10

Work done in raising a box depends on:

Question # 11

A body of mass 3 Kg lies on the surface on the table 2m high. It is moved on the surface by 4m. The change of P.E will be:

Question # 12

Which of the following is a unit of energy?

Question # 13

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

Question # 14

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?

Question # 15

The body at rest may have:

Question # 16

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

Question # 17

If the stone is thrown up vertically and return to ground, its potential energy is maximum

Question # 18

Which of the following work is greater?

Question # 19

A force 𝑭 = (𝟓𝒊̂+ 𝟑𝖩̂) newton is applied over a particle which displaces it from its origin to the point 𝒓 = (𝟐𝒊̂− 𝟏𝖩̂) meters. The work done on the particle is:

Question # 20

You lift a suit case from the floor and keep it on a table. The work done by you on the suitcase does not depend on

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Besides cramming, the students should use logic to solve the questions of Physics. The candidates make sure to allocate the proper time to all the topics in this chapter. The practice helps the students to get good scores and strengthen their preparation before the commencement of the MDCAT exam. To get more information about the preparation of MDCAT, stay in touch with us and get a hand on the preparation material.

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MCAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 Work done in raising a box depends on:
A. How fast it is raised
B. The strength of the man
C. The height by which it is raised
D. None of the above
3 The power needed to lift amass of 5000g to height of 1min 2 second is
A. 2.45 watt
B. 24.5 watt
C. 245 watt
D. 2.45 k watt
4 A body is dropped from a height of 20 m and rebounds to a height of 10 m. the loss of energy is:
A. 10%
B. 45%
C. 50%
D. 75%
5
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
6
An elevator's motor produces 3000 W power. The speed With Which it can lift a 1000 kg load is:
A. 30.6ms-1
B. 0.306ms-1
C. 3.06ms-1
D. 300.3ms-1
7 The energy stored in wound watch spring is
A. K.E.
B. P.E.
C. heat energy
D. chemical energy
8 Initially, four identical uniform blocks, each of mass m and thickness h, are spread on a table How much work is done on the blocks in stacking them on top of one another?
A. 2 mgh
B. 3 mgh
C. 4mgh
D. 6mgh
9 A body of mass m kg is lifted by a man to a height of one meter in 30 sec. Another man lifts the same mass to the same height in 60 sec. The work done by them are in the ratio
A. 1: 2
B. 1: 1
C. 2: 1
D. 4: 1
10 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

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  • Aleeza Ilyas

    Aleeza Ilyas

    05 Aug 2022

    Answer key is mostly wrong sir

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  • ADEEL

    ADEEL

    14 Apr 2019

    ..

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  • ahmer

    ahmer

    02 Nov 2018

    12

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  • Sanam khan

    Sanam khan

    12 May 2018

    Test Dana k bad ksa pata Chala GA k Mara konsa mcqs wrong ha 😛 I got 94 marks out of 100

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  • Sheza fiaz

    Sheza fiaz

    18 Apr 2018

    How can we become a member of ths website.??

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