Do you want to improve your understanding of general science questions, especially on the topics of the Force and Laws of Motion? Inspired by the NCERT GK book, this effort offers you a carefully selected set of general science (physics) GK questions with answers. These GK question and answer sets, which cover the concepts of the force and laws of motion are ideal for students, competitive exam candidates, and inquisitive learners. These science-based tests, which feature an easy-to-understand format, help improve memory retention and solidify fundamentals. Our collection of science and physics questions will help you learn more effectively, whether you’re studying for school exams or general knowledge assessments.
In this blog post, we’ve compiled 50 Most Important General Science GK Questions on Force and Laws of Motion with detailed answers as a part of the Science GK effort by our team. These questions are ideal for aspirants preparing for UPSC, SSC, Railway, CDS, NDA, State PSC, and other government exams. Understanding these facts not only strengthens your static GK but also gives an edge in science, especially in the general science and physics sections.
Multiple-Choice Question (Questions on Force and Laws of Motion)
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📘 Motion:
- The shortest distance between initial and final position of an object is:
a) Distance
b) Path length
c) Displacement
d) Speed - Distance is a ______ quantity.
a) Vector
b) Scalar
c) Derived
d) Base - Displacement is a ______ quantity.
a) Vector
b) Scalar
c) Fundamental
d) Base - When distance travelled by an object is directly proportional to time, it is in:
a) Non-uniform motion
b) Accelerated motion
c) Uniform motion
d) Circular motion - A car travels 100 km in 2 hours. Its average speed is:
a) 25 km/h
b) 100 km/h
c) 50 km/h
d) 200 km/h - SI unit of speed is:
a) km/h
b) cm/s
c) m/s
d) km/s - Speed with direction is called:
a) Distance
b) Acceleration
c) Velocity
d) Momentum - Velocity of an object can be changed by changing:
a) Speed only
b) Direction only
c) Either speed or direction or both
d) None - The rate of change of velocity is called:
a) Speed
b) Velocity
c) Acceleration
d) Displacement - SI unit of acceleration is:
a) m/s
b) m/s
c) m/s²
d) m²/s - Negative acceleration is also called:
a) Uniform motion
b) Velocity
c) Retardation
d) Momentum - The slope of a distance-time graph gives:
a) Acceleration
b) Displacement
c) Speed
d) Momentum - The slope of a velocity-time graph gives:
a) Speed
b) Displacement
c) Acceleration
d) Distance - Area under velocity-time graph gives:
a) Acceleration
b) Speed
c) Displacement
d) Velocity - Equation of motion relating v, u, a, and t:
a) v = at
b) v = u – at
c) v = u + at
d) v = u + t - Equation of motion relating s, u, a, and t:
a) s = ut
b) s = ut + ½ at²
c) s = vt
d) s = v²/2a - Equation of motion relating v², u², a, and s:
a) v² = 2as
b) v² = u² + t²
c) v² – u² = 2as
d) v² = u² – 2as - Motion of an object moving in a circle at constant speed is called:
a) Uniform motion
b) Non-uniform motion
c) Uniform circular motion
d) Rectilinear motion - A body moving in a circular path changes:
a) Speed only
b) Direction only
c) Speed and direction both
d) Neither - SI unit of displacement is:
a) km
b) cm
c) m
d) s - The odometer of a car measures:
a) Velocity
b) Acceleration
c) Distance
d) Displacement - An athlete completes one round of circular track of diameter 200 m. Displacement is:
a) 200 m
b) 400 m
c) 314 m
d) Zero - The speed of an object moving along a circular path of radius r and time t is:
a) v = 2πrt
b) v = t/2πr
c) v = 2πr/t
d) v = πr²/t - When velocity is constant, acceleration is:
a) Maximum
b) Negative
c) Zero
d) Constant - The motion of the moon around earth is an example of:
a) Linear motion
b) Rotational motion
c) Vibrational motion
d) Uniform circular motion
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📘 Force and Laws of Motion:
- Force can change:
a) Speed only
b) Direction only
c) Shape only
d) All of these - Balanced forces:
a) Change motion
b) Change speed
c) Do not change state of rest or motion
d) Always move object - Unbalanced forces:
a) Keep object at rest
b) Change state of rest or motion
c) Never move objects
d) Always oppose - The property of an object to resist change in motion is:
a) Force
b) Momentum
c) Inertia
d) Velocity - Inertia depends on:
a) Shape
b) Mass
c) Speed
d) Direction - Newton’s first law is also known as:
a) Law of force
b) Law of acceleration
c) Law of inertia
d) Law of action-reaction - Momentum is defined as:
a) Mass + velocity
b) Mass × acceleration
c) Mass × velocity
d) Force × time - SI unit of momentum is:
a) Joule
b) Watt
c) kg·m/s
d) Newton - Rate of change of momentum is:
a) Velocity
b) Mass
c) Force
d) Inertia - Mathematical form of Newton’s second law:
a) F = mv
b) F = u + at
c) F = ma
d) F = v – u - Newton’s third law states:
a) Force = ma
b) Every action has equal and opposite reaction
c) Momentum is conserved
d) Objects resist motion - The recoiling of a gun is an example of:
a) First law
b) Second law
c) Third law
d) Inertia - SI unit of force is:
a) Joule
b) Watt
c) Newton
d) Dyne - 1 Newton = force required to produce acceleration of 1 m/s² in:
a) 10 g mass
b) 1 kg mass
c) 100 g mass
d) 1 g mass - When carpet is beaten, dust comes out due to:
a) Velocity
b) Momentum
c) Inertia
d) Friction - While catching a ball, a player pulls hands backward to:
a) Reduce force
b) Increase time of impact and reduce force
c) Stop ball quickly
d) Increase momentum - The tendency of passengers to fall forward when bus stops suddenly is due to:
a) Velocity
b) Momentum
c) Inertia of motion
d) Retardation - When a body is at rest, its momentum is:
a) Infinite
b) Zero
c) Maximum
d) Minimum - A body of mass 2 kg moving with velocity 3 m/s. Its momentum is:
a) 6 N
b) 1.5 N
c) 6 kg·m/s
d) 3 kg·m/s - A body of mass 10 kg accelerates at 2 m/s². Force applied is:
a) 5 N
b) 20 N
c) 20 N
d) 10 N - Action and reaction forces:
a) Act on same body
b) Act on different bodies
c) Cancel each other
d) Produce motion always - Example of action-reaction pair is:
a) Force of gravity on body
b) Man walking on ground
c) Motion of train
d) Acceleration of car - A fast moving truck hitting a stationary car shows:
a) Inertia
b) Second law (momentum change)
c) First law
d) Third law - The SI unit of acceleration is:
a) Newton
b) m/s²
c) Joule
d) Watt - Which of the following is not an example of Newton’s third law?
a) Jumping from boat
b) Recoil of gun
c) Walking of man
d) Falling of apple
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Answer Key
| S. No. | Answer | S. No. | Answer |
| 1 | C. Displacement | 26 | D. All of these |
| 2 | B. Scalar | 27 | C. Do not change state of rest or motion |
| 3 | A. Vector | 28 | B. Change state of rest or motion |
| 4 | C. Uniform motion | 29 | C. Inertia |
| 5 | C. 50 km/h | 30 | B. Mass |
| 6 | C. m/s | 31 | C. Law of inertia |
| 7 | C. Velocity | 32 | C. Mass × velocity |
| 8 | C. Either speed or direction or both | 33 | C. kg·m/s |
| 9 | C. Acceleration | 34 | C. Force |
| 10 | C. m/s² | 35 | C. F = ma |
| 11 | C. Retardation | 36 | B. Every action has equal and opposite reaction |
| 12 | C. Speed | 37 | C. Third law |
| 13 | C. Acceleration | 38 | C. Newton |
| 14 | C. Displacement | 39 | B. 1 kg mass |
| 15 | C. v = u + at | 40 | C. Inertia |
| 16 | B. s = ut + ½ at² | 41 | B. Increase time of impact and reduce force |
| 17 | C. v² – u² = 2as | 42 | C. Inertia of motion |
| 18 | C. Uniform circular motion | 43 | B. Zero |
| 19 | B. Direction only | 44 | C. 6 kg·m/s |
| 20 | C. m | 45 | C. 20 N |
| 21 | C. Distance | 46 | B. Act on different bodies |
| 22 | D. Zero | 47 | B. Man walking on ground |
| 23 | C. v = 2πr/t | 48 | B. Second law (momentum change) |
| 24 | C. Zero | 49 | B. m/s² |
| 25 | D. Uniform circular motion | 50 | D. Falling of apple |
Tips for Aspirants – Why These GK Questions Matter?
If you’re aiming for exams like UPSC, SSC, Railways, or other State Public Service Commissions, mastering General Science questions is a must. Because science GK questions consistes a significant part of it. Questions from “Force and Laws of Motion” are frequently repeated in exams because they establish a scientific foundation for understanding the topics of General science.
🟢 These GK questions with answers help in:
- Strengthening your static GK base
- Quick revision of conceptual theories
- Differentiating between similar-sounding options
Pro Tip: Revise these questions multiple times, focus on keywords, and try linking each theory to a scientist’s name—it really helps in the elimination strategy!
Conclusion
We hope you found this collection of 50 MCQs on Force and Laws of Motion helpful in your exam preparation. General Science isn’t just about memorising formulae and terminologies—it’s about understanding how our discipline continues to evolve from the very beginning.
👉 Stay tuned for General Science GK Part-5
✍️ For more GK questions with answers, visit our dedicated 👉 GK Section.
