set 5 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 5 EXERCISES
The following question based on mechanics (mass, force, acceleration, work, energy, momentum, velocity) topic of general science mcq
(a) force acting on the body is zero
(b) displacement is zero
(c) force perpendicular to the displacement
(d) All of the above
The correct answers to the above question in:
Answer: (d)
Practice mechanics (mass, force, acceleration, work, energy, momentum, velocity) (set 5) Online Quiz
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Read more mechanics work and energy Based General Science Questions and Answers
Question : 1
Match the Column I and Column II.
Column I | Column II |
A. Electric motor | P. Electrical energy to sound energy |
B. Electric bell | Q. Electrical energy to mechanical energy |
C. Electric bulb | R. Light energy to electrical energy |
D. Photoelectric | S. Heat energy to mechanical cell energy |
E. Steam engine | T. Electric energy to light energy |
a) A-Q; B-P; C-T; D-S; E-R
b) A-Q; B-P; C-T; D-T; E-S
c) A-P; B-Q; C-T; D-R; E-S
d) A-Q; B-P; C-T; D-R; E-S
Answer »Answer: (d)
Question : 2
SI unit of pressure is
a) pascal
b) bar
c) atmosphere
d) mm of Hg
Answer »Answer: (a)
1 pascal = 1 N / m2.
Question : 3
A man is at rest in the middle of a horizontal plane of perfectly smooth surface of ice. He can move himself to the shore by making use of Newton’s
a) third law of motion
b) second law of motion
c) first law of motion
d) first, second and third laws of motion
Answer »Answer: (a)
Question : 4
Watt–hour meter measures
a) power
b) voltage
c) current
d) electric energy
Answer »Answer: (d)
W – hr is a unit of energy.
Question : 5
In cricket match, while catching a fast moving ball, a fielder in the ground gradually pulls his hands backwards with the moving ball to reduce the velocity to zero. The act represents
a) Newton’s third law of motion
b) Newton’s second law of motion
c) Newton’s first law of motion
d) Law of conservation of energy
Answer »Answer: (b)
Question : 6
Which one of the following physical quantities is represented by the shaded area in the given graph?
![laws of motion force work energy power centre of mass question answer 35](https://careericons.com/adminicon/bunch/images/laws-of-motion-force-work-energy-power-centre-of-mass-question-answer-35.png)
a) Power
b) Impulse
c) Torque
d) Work done
Answer »Answer: (d)
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