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

. A force "F1" acts on a body through distance "S1" in the direction of motion and does work "W1". Similarly another force "F2" act on same body through distance "S2" but in opposite to the direction of motion and does work "W2". Now if F1 = F2 and S1 = S2 then which statement is correct.

Question # 2

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

Question # 3

When the velocity of a body is doubled:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The energy stored in wound watch spring is

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Ratio of dimension of K.E and power is:

Question # 13

A man M1 of mass 80 kg runs up a staircase in 15s. Another man M2 also of mass 80 kg runs up the same staircase in 20s. The ratio of the power developed by them will be

Question # 14

The body at rest may have:

Question # 15

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 # 16

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

Question # 17

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

Question # 18

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 # 19

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

Question # 20

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

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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 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. 150 KW
B. 1.5 KW
C. heat energy
D. chemical energy
2
An engine pumps out 40 kg of water in one second. The water comes out vertically upwards with a velocity of 3ms-1 . What is the power of engine in kilowatt?
A. 1.2kW
B. 120kW
C. 12kW
D. 1200kW
3 The body at rest may have:
A. Energy
B. Momentum
C. Speed
D. Velocity
4 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:
A. Zero
B. 9.8 J
C. 19.6 J
D. 329 J
5 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
6 Ratio of dimension of K.E and power is:
A. 1:1
B. T:1
C. 1:T
D. M:J
7
A man weighing 500 N carries a load of 10 kg to the top of a building in 4 minutes. The work done by the man is 6 × 𝟏𝟎4 J. If he carries the same load in 8 minutes, the work done by the man will be:
A. 3 × 104 J
B. 6 × 104J
C. 9 × 104J
D.
12× 104 J
8 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
9 When a person lifts a body from ground work done by lifting force is?
A. Positive
B. Negative
C. Zero
D. Half of positive maximum
10 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

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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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