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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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Total Questions20
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Time Allowed20
MDCAT Physics Chapter 3 Work ,Energy & Power Online Test
00:00
Question # 1
Which of the following work is greater?
Question # 2
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 # 3
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 # 4
. 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 # 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
In an explosion a body breaks up into two pieces of unequal masses. In this:
Question # 7
A force of 6 N act horizontally on a stationary mass of 2kg for 4s. The kineticenergy in joule is
Question # 8
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 # 9
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 # 10
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 # 11
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 # 12
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)
Question # 13
If the stone is thrown up vertically and return to ground, its potential energy is maximum
Question # 14
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 # 15
Which of the following is a unit of energy?
Question # 16
A man pushes a wall and fails to displace it. He does:
Question # 17
The power needed to lift amass of 5000g to height of 1min 2 second is
Question # 18
Ratio of dimension of K.E and power is:
Question # 19
Car X is traveling at half the speed of car Y. Car X has twice mass of car Y.Which statement is correct?
Question # 20
A person holds a bucket of weight 60N. He walks 7 m along the horizontal path and then climbs up a vertical distance of 5 m. The work done by the man is:
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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H Hassan Faraz 22 - Nov - 2024 02 Min 30 Sec 20/20 -
M Madhanlal Mooorani 25 - Nov - 2024 00 Min 15 Sec 19/20 -
Z Zunaira Jabeen Zunaira 12 - Sep - 2025 12 Min 02 Sec 19/20 -
S Somi khan Somi khan 23 - Nov - 2024 02 Min 16 Sec 17/20 -
A Abiha Aamir 04 - Jan - 2025 09 Min 49 Sec 17/20 -
S Shamima Akhtar 16 - Dec - 2024 04 Min 09 Sec 16/20 -
S Saim G 07 - Aug - 2025 16 Min 44 Sec 16/20 -
N Naveed Ahmad 22 - Nov - 2024 04 Min 21 Sec 15/20 -
H Homehaiyemera 786 29 - Nov - 2024 07 Min 09 Sec 15/20 -
J jannat tariq 01 - Dec - 2024 04 Min 40 Sec 13/20 -
P Paras Jatoi 03 - Jan - 2025 08 Min 19 Sec 13/20 -
K Kashaf Raza 18 - Dec - 2024 09 Min 14 Sec 13/20 -
S Sara Javaid 14 - Jan - 2025 04 Min 19 Sec 12/20 -
M mmms khokhar 05 - Dec - 2024 05 Min 41 Sec 12/20 -
S Seharfatima 04 - Dec - 2024 07 Min 10 Sec 12/20
MCAT Physics Chapter 3 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 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: |
A. Zero
B. 9.8 J
C. 19.6 J
D. 329 J
|
| 3 | 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
|
| 4 | Which of the following work is greater? |
A. + 100J
B. 0 J
C. - 100J
D. Both A and B are equal
|
| 5 | 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
|
| 6 | 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
|
| 7 | 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
|
| 8 | 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
|
| 9 | 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) |
A. 2 sec
B. 4 sec
C. 8 sec
D. 16sec
|
| 10 |
Car X is traveling at half the speed of car Y. Car X has twice mass of car Y. Which statement is correct?
|
A. Car X has half the kinetic energy of car Y
B. Car X has one quarter of the kinetic energy of car Y
C. Car X has twice the kinetic energy of car Y
D. The tow cars have the same kinetic energy
|
Test Questions
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.??