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
00:00
Question # 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)
Question # 2
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 # 3
Work done in raising a box depends on:
Question # 4
In a gravitational field when work done by gravity is negative then
Question # 5
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:
Question # 6
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 # 7
A light and a heavy body have equal momenta. Which one has greater K.E?
Question # 8
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 # 9
When a person lifts a body from ground work done by lifting force is?
Question # 10
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 # 11
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 # 12
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:
Question # 13
Ratio of dimension of K.E and power is:
Question # 14
Which of the following types of force can do no work on the particle on which it acts?
Question # 15
If the K.E. of a body is increased by 300%, its momentum will increase by:
Question # 16
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 # 17
The gravity does no work, when the body moves:
Question # 18
In an explosion a body breaks up into two pieces of unequal masses. In this:
Question # 19
If the stone is thrown up vertically and return to ground, its potential energy is maximum
Question # 20
The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?
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.
Top Scorers Of MDCAT Physics Chapter 3 Work ,Energy & Power Online Test MCQ`s Test
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Hassan Faraz22 - Nov - 2024
02 Min 30 Sec
20/20
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Madhanlal Mooorani25 - Nov - 2024
00 Min 15 Sec
19/20
Somi khan Somi khan23 - Nov - 2024
02 Min 16 Sec
17/20
A
Abiha Aamir04 - Jan - 2025
09 Min 49 Sec
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Shamima Akhtar16 - Dec - 2024
04 Min 09 Sec
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Saim G07 - Aug - 2025
16 Min 44 Sec
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Naveed Ahmad22 - Nov - 2024
04 Min 21 Sec
15/20
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Homehaiyemera 78629 - Nov - 2024
07 Min 09 Sec
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jannat tariq01 - Dec - 2024
04 Min 40 Sec
13/20
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Paras Jatoi03 - Jan - 2025
08 Min 19 Sec
13/20
K
Kashaf Raza18 - Dec - 2024
09 Min 14 Sec
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Sara Javaid14 - Jan - 2025
04 Min 19 Sec
12/20
M
mmms khokhar05 - Dec - 2024
05 Min 41 Sec
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Seharfatima04 - Dec - 2024
07 Min 10 Sec
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MCAT
Physics
Chapter 3
Important MCQ's
Sr.#
Question
Answer
1
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
2
Which of the following work is greater?
A. + 100J
B. 0 J
C. - 100J
D. Both A and B are equal
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:
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
4
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
5
When the velocity of a body is doubled:
A. Its K.E is doubled
B. Its P.E is doubled
C. Its momentum is doubled
D. Its acceleration is doubled
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
A. 150 KW
B. 1.5 KW
C. heat energy
D. chemical energy
7
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%
8
Which of the following is a unit of energy?
A. unit
B. whatt
C. Horse Power
D. None of the above
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
The time taken by an engine of power 10 kW to lift a mass of 200 kg to a heightof 40 m is (g + 10ms2)
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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.??