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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1,416 questions · page 8 of 71
- A. Zero
- B. Constant magnitude but the varying direction
- C. Constant direction but the varying magnitude
- D. Varying magnitude and direction
Explanation: Centripetal acceleration is the acceleration experienced by an object moving in a circular path.
Correct answer: Constant magnitude but the varying direction- A. Toward the centre
- B. Always along the radius
- C. Irregular
- D. Circular in motion
Explanation: The net acceleration of a particle in circular motion is directed toward the centre of the circular path.
Correct answer: Toward the centre- A. 680 cm/s2
- B. 860 cm/s2
- C. 720 cm/s2
- D. 990 cm/s2
Explanation: The following is the solution:The formula for centripetal acceleration can be written as:a = v2/ r = rω2where v is the velocity of the…
Correct answer: 990 cm/s2- A. 40m/s2
- B. 4737.6m/s2
- C. 245m/s2
- D. 20m/s2
Explanation: Solution:a = rω²a = (0.30) (1200 × 2π / 60)² = 4737.6 ms⁻²
Correct answer: 4737.6m/s2- A. 30 rad/s2
- B. 30 rev/s2
- C. 3.14 rad/s-2
- D. 500 rev/s2
Explanation: To find the average angular acceleration, we convert the initial and final angular velocities to radians/second, then use the formula α =…
Correct answer: 3.14 rad/s-2- A. 0
- B. Π/4
- C. Π/2
- D. Π
Explanation: a = v/tθ = cos-1Using dot product s . a = - s . a (Concept of parallel and anti parallel)θ = cos-1θ = cos-1 (s .
Correct answer: Π- A. 9s
- B. 10s
- C. 20s
- D. 12s
Explanation: Here is the explanation of the correct option D = ut + 1/2 at2200 = 0.t +1/2 (5)t2200 = 5/2 t280 = t2t = √16.5t =4√5t = 4x2.23 (√5 =…
Correct answer: 9s- A. 5 ms-2
- B. 10 ms-2
- C. 9.8 ms-2
- D. 0 ms-2
Explanation: The correct answer is 0 ms-2. Acceleration is the rate of change of velocity.
Correct answer: 0 ms-2- A. A
- B. B
- C. C
- D. D
Explanation: As velocity of an object is increasing uniformly so it's acceleration is constant.
Correct answer: A150. If the slope of velocity time graph is not constant at different points,then body is moving with:
- A. Constant acceleration
- B. Average acceleration
- C. Increasing acceleration
- D. Uniform velocity
Explanation: Option C is correct.The v-t graph of an object with increasing acceleration is a parabola. .
Correct answer: Increasing acceleration- A. 4.9 m
- B. 19.6 m
- C. 29.4 m
- D. 39.2 m
Explanation: To determine the total distance covered by an object falling freely from rest, we use the following kinematic equation:* s = ut +…
Correct answer: 19.6 m- A. Uniform velocity.
- B. Positive acceleration.
- C. Negative acceleration.
- D. Instantaneous velocity.
Explanation: The slope of a velocity-time graph represents acceleration. If the slope is positive, it indicates positive acceleration, and if it is…
Correct answer: Instantaneous velocity.153. If the slope of a velocity-time graph gradually increases, then the body is said to be moving with
- A. Uniform velocity.
- B. Positive acceleration.
- C. Negative acceleration.
- D. Instantaneous velocity.
Explanation: The correct answer is positive acceleration. On a velocity-time graph, the slope represents acceleration.
Correct answer: Positive acceleration.- A. Variable motion.
- B. Instantaneous motion.
- C. Uniformly accelerated motion
- D. Non-uniformly accelerated motion.
Explanation: The correct answer is uniformly accelerated motion. This type of motion is shown on a velocity-time graph as a straight line, indicating…
Correct answer: Uniformly accelerated motion- A. I only.
- B. II only.
- C. I and III
- D. II and III
Explanation: The correct answer is II only. Car II's velocity-time graph demonstrates the acceleration pattern that meets the criteria described in the…
Correct answer: II only.- A. zero acceleration in region I.
- B. variable acceleration in region II.
- C. positive acceleration in region III.
- D. negative acceleration in region III.
Explanation: * Acceleration is represented by the slope of a velocity-time graph. * A positive slope indicates positive acceleration.
Correct answer: negative acceleration in region III.- A. 0.05 s.
- B. 0.25 s.
- C. 5 s.
- D. 20 s.
Explanation: * Frequency of the ticker tape (f) = 20 Hz * The diagram shows dots labeled P, Q, R, S, T.Calculations: * Calculate the time period (T)…
Correct answer: 0.25 s.- A. a < 0
- B. a = 0
- C. a > 0
- D. 0 < a < 1
Explanation: A) a < 0: This is correct. A decreasing distance between marks implies deceleration, which means the acceleration is negative.
Correct answer: a < 0- A. will be 10 m/s2.
- B. will be 25 m/s2.
- C. will be 50 m/s2
- D. cannot be determined.
Explanation: . * Verifying with Given Values: We can verify the implied value of 'g' using the given height (h = 125 m) and time (t = 5 s) with the…
Correct answer: will be 10 m/s2.- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: A ticker timer makes dots at regular intervals of time. If the dots are far apart, the object moved a long distance in that time (high…
Correct answer: Option B