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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
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Question # 1
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 # 2
If the stone is thrown up vertically and return to ground, its potential energy is maximum
Question # 3
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
Question # 4
If the velocity of a body becomes half, the kinetic energy of body will become
Question # 5
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 # 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
If the momentum of a body is increased n times, its kinetic energy increases:
Question # 8
Which of the following is a unit of energy?
Question # 9
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 # 10
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 # 11
Car X is traveling at half the speed of car Y. Car X has twice mass of car Y.Which statement is correct?
Question # 12
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:
Question # 13
Work done in raising a box depends on:
Question # 14
When a person lifts a body from ground work done by lifting force is?
Question # 15
An elevator's motor produces 3000 W power. The speed With Which it can lift a 1000 kg load is:
Question # 16
Which of the following types of force can do no work on the particle on which it acts?
Question # 17
The momentum of a particle is numerically equal to its K.E. What is the velocity of a particle?
Question # 18
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 # 19
A force of 6 N act horizontally on a stationary mass of 2kg for 4s. The kineticenergy in joule is
Question # 20
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
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 | 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
|
| 2 | 3 joules of work is done in 3 seconds, then power is: |
A. 6 watt
B. 3 watt
C. 18 watt
D. 1 watt
|
| 3 | Which of the following is a unit of energy? |
A. unit
B. whatt
C. Horse Power
D. None of the above
|
| 4 | 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
|
| 5 | 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
|
| 6 | A man pushes a wall and fails to displace it. He does: |
A. Negative work
B. Positive but not maximum work
C. No work at all
D. Maximum work
|
| 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 | 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
|
| 9 |
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
|
| 10 | 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
|
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.??