Free Force and Motion MCQs with Answers
1,416 Force and Motion MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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- A. Correlated with each other
- B. Dependent on each other
- C. Independent of each other
- D. Associated with each other
Explanation: This option is correct, since the horizontal velocity remains constant while the vertical velocity is affected by factors such as weight…
Correct answer: Independent of each other- A. The horizontal velocity is 15m/s while vertical velocity is 20m/s downwards
- B. The horizontal velocity is 15m/s while vertical velocity is 15m/s downwards
- C. The horizontal velocity is 30m/s while vertical velocity is 20m/s downwards
- D. The horizontal velocity is 15m/s while vertical velocity is 0m/s
Explanation: The horizontal velocity (vx) remains constant because there are no horizontal forces acting on the ball (ignoring air resistance).The…
Correct answer: The horizontal velocity is 15m/s while vertical velocity is 20m/s downwards- A. Remains constant
- B. Varies with time
- C. Is zero
- D. Is taken as positive
Explanation: Explanation: The verticle acceleration remains constant equal to the value of 'g'
Correct answer: Remains constant- A. V = r ω
- B. V = r/ω
- C. V =ω/r
- D. V = ω2/r
Explanation: Explanation: From the knowledge of circular motion, we can say that the magnitude of the linear velocity of a particle travelling in a…
Correct answer: V = r ω- A. Parallel to it
- B. Perpendicular to it
- C. At an angle of 180o
- D. At an angle of 270o
Explanation: Explanation: The direction of the angular velocity is along the axis of rotation.
Correct answer: Perpendicular to it- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Explanation: The instantaneous angular acceleration is the time derivative of angular velocity α=limΔt→0Δω/Δt=dωdt α = lim Δ t → 0 Δ ω/ Δ…
Correct answer: Option D- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Explanation: Calculation of Centripetal Force The product of mass (kg) and tangential velocity (m/sec) squared, divided by the radius (m)…
Correct answer: Option C- A. The gravitational pull
- B. Inertia of the planets
- C. Momentum
- D. Some unknown force
Explanation: Solution: The correct option is A Gravitational Force Gravitational force is the source of the centripetal force that a planet requires…
Correct answer: The gravitational pull- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Explanation: α = Δ ω/ Δ t α = T-1/T α = T-1-1 α = T-2
Correct answer: Option A- A. One dimension
- B. Two dimension
- C. Uniform speed
- D. None of these
Explanation: Explanation: What Is Projectile Motion? When a particle is thrown obliquely near the earth's surface, it moves along a curved path under…
Correct answer: Two dimension- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: The velocity at any instant of time is the sum of horizontal and vertical velocity at the particular point.
Correct answer: Option A- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Explanation for this question is as follows: Angular Velocity Formula Since the angular velocity of an object is the object's angular…
Correct answer: Option A- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: Explanation for this question is as follows: Instantaneous Angular Velocity The instantaneous angular velocity is defined as the limit of…
Correct answer: Option A- A. The gravitational pull of the sun on the satellite
- B. The gravitational pull of the earth on the satellite
- C. The rocket engine attached to the satellite
- D. None of the above
Explanation: Satellites remain in orbit around the Earth due to the gravitational pull of the Earth.
Correct answer: The gravitational pull of the earth on the satellite- A. The instantaneous displacement
- B. Average angular velocity
- C. The instantaneous angular velocity
- D. The instantaneous speed
Explanation: The angular velocity at any instant is called instantaneous angular velocity.
Correct answer: The instantaneous angular velocity- A. m2v/r
- B. mv2/r
- C. m2v/r2
- D. mv2/r2
Explanation: The formula for centripetal force is: Fc = mv2/r
Correct answer: mv2/r- A. V/2
- B. V0 + V /2
- C. wi + wr /2
- D. V0 + ωi /2
Explanation: Explanation for this question will be added soon!
Correct answer: wi + wr /2- A. 2 π r
- B. 2 π r2
- C. π r
- D. π2 r
Explanation: The circumference of a circle is equal to 2 π r.
Correct answer: 2 π r1219. A body is moving with a constant speed v in a circle of radius r. Its angular acceleration is:
- A. vr
- B. v/r
- C. Zero
- D. vr2
Explanation: When a body is moving with a constant speed v in a circle of radius r, it is undergoing uniform circular motion.
Correct answer: Zero- A. Have a horizontal inward component
- B. Be vertical
- C. Equilibrate the centripetal force
- D. Be decreased
Explanation: The explanation is given below: When a train or railcar goes around a curve, it experiences a centripetal force directed towards the…
Correct answer: Equilibrate the centripetal force