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
MDCAT Physics Chapter 3 Work ,Energy & Power Online Test
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Question # 1
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?
Question # 2
In an explosion a body breaks up into two pieces of unequal masses. In this:
Question # 3
An elevator's motor produces 3000 W power. The speed With Which it can lift a 1000 kg load is:
Question # 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
Question # 5
3 joules of work is done in 3 seconds, then power is:
Question # 6
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 # 7
A man pushes a wall and fails to displace it. He does:
Question # 8
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 # 9
The gravity does no work, when the body moves:
Question # 10
The body at rest may have:
Question # 11
The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?
Question # 12
If the stone is thrown up vertically and return to ground, its potential energy is maximum
Question # 13
When a person lifts a body from ground work done by lifting force is?
Question # 14
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 # 15
The power needed to lift amass of 5000g to height of 1min 2 second is
Question # 16
Which of the following types of force can do no work on the particle on which it acts?
Question # 17
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 # 18
The energy stored in wound watch spring is
Question # 19
A light and a heavy body have equal momenta. Which one has greater K.E?
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
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. 33 kW
B. 3.3kW
C. 0.33kW
D. 0.033kW
2
A light and a heavy body have equal momenta. Which one has greater K.E?
A. The light body
B. The heavy body
C. The K.E are equa
D. Data is incomplete
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
3 joules of work is done in 3 seconds, then power is:
A. 6 watt
B. 3 watt
C. 18 watt
D. 1 watt
5
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
6
A force of 6 N act horizontally on a stationary mass of 2kg for 4s. The kineticenergy in joule is
A. 12
B. 72
C. 56
D. 888
7
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
8
If the stone is thrown up vertically and return to ground, its potential energy is maximum
A. during the upward journey
B. during the upward journey
C. at the maximum height
D. at the bottom
9
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
10
If the momentum of a body is increased n times, its kinetic energy increases:
A. n times
B. 2 n times
C. √𝑛 times
D. n
2
time
Test Questions
Share your comments & questions here
Aleeza Ilyas
05 Aug 2022
Answer key is mostly wrong sir
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ADEEL
14 Apr 2019
..
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ahmer
02 Nov 2018
12
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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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Share your comments & questions here
Aleeza Ilyas
05 Aug 2022Answer key is mostly wrong sir
ADEEL
14 Apr 2019..
ahmer
02 Nov 201812
Sanam khan
12 May 2018Test Dana k bad ksa pata Chala GA k Mara konsa mcqs wrong ha 😛 I got 94 marks out of 100
Sheza fiaz
18 Apr 2018How can we become a member of ths website.??