Free Displacement and Velocity MCQs with Answers
86 Displacement and Velocity 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 is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
Last updated
86 questions · page 3 of 5
- A. has zero acceleration
- B. has uniform acceleration
- C. has variable acceleration
- D. moves in a circle
Explanation: With zero acceleration, velocity remains constant, so the instantaneous velocity has the same value throughout the motion as the average…
Correct answer: has zero acceleration- A. force
- B. displacement
- C. distance
- D. acceleration
Explanation: The area under a velocity-time graph is velocity multiplied by time, which gives displacement: displacement = ∫v dt.
Correct answer: displacement- A. 10m/s
- B. 36m/s
- C. zero
- D. infinite
Explanation: The man and the car are moving together with the same velocity, so their relative velocity is v_man/car = v_man - v_car = 0 m/s.
Correct answer: zero- A. its velocity
- B. its acceleration
- C. its position vector
- D. its momentum
Explanation: Motion means a body changes its position with time, so its position vector changes.
Correct answer: its position vector- A. 2.5
- B. 2.0
- C. 1.75
- D. 1.5
- E. 1.25
Explanation: Because the automobiles move toward each other, their closing speed is 60 km/h + 40 km/h = 100 km/h.
Correct answer: 1.5- A. Magnitude only
- B. Direction only
- C. Magnitude and direction
- D. No unit is required
Explanation: Option A) Magnitude only is incorrect because displacement does not just include the magnitude or amount of the change in position, but…
Correct answer: Magnitude and direction- A. The car travels 20 km due east.
- B. The car travels 60 km due east, then turns around and travels 40 km due west.
- C. The car travels 70 km due east.
- D. The car travels 30 km due west, then turns around and travels 30 km due east.
Explanation: We know that average velocity = total displacement/total time.The car travels 30 km due west, then turns around and travels 30 km due…
Correct answer: The car travels 30 km due west, then turns around and travels 30 km due east.- A. Tensor
- B. Vector
- C. Scalar
- D. None of these options is correct
Explanation: Option A) Tensor is not correct because tensors are mathematical objects that can describe physical quantities that have multiple…
Correct answer: Vector- A. acceleration
- B. displacement
- C. force
- D. power
Explanation: Multiplying velocity by time gives displacement, so the area under the curve accumulates it, with area below the axis counting as…
Correct answer: displacement- A. 0.2πm/s
- B. 2πm/s
- C. 2m/s
- D. Zero
Explanation: When a particle completes one full circle, its total displacement is zero because it ends up back where it started.
Correct answer: Zero- A. 2πr, 2πr
- B. π, 2πr
- C. 2π, 2πr
- D. Zero, 2πr
Explanation: The correct answer is option D: Zero, 2πr. The particle's displacement is zero, and the distance covered is 2πr during one period of…
Correct answer: Zero, 2πr- A. 0.2πm/s
- B. 2πm/s
- C. 2m/s
- D. Zero
Explanation: The explanation for this question will be added soon!
Correct answer: Zero- A. is zero
- B. is not zero
- C. may or may not be zero
- D. depends on the acceleration
Explanation: Displacement is the shortest distance. If the displacement is zero that means the body has returned to its starting position.The M shows…
Correct answer: may or may not be zero- A. 0
- B. v
- C. v/2
- D. 2v
Explanation: When two cars are moving in opposite directions at the same speed v, their relative velocity is the sum of their speeds: v + v = 2v.
Correct answer: 2v- A. Straight-line passing through origin
- B. Straight line parallel to t- axis
- C. Quadratic relationship
- D. Cubic relationship
Explanation: This option is correct. For a linear relationship between displacement and time, the d-t graph will be a straight line that passes through…
Correct answer: Straight-line passing through origin- A. Area under graph represents displacement
- B. Gradient of the graph is constant
- C. Gradient of the graph repesents velocity
- D. Gradient of the graph represents acceleration
Explanation: Option A : In the displacement time graph, the area under the graph doesn't represent displacement.
Correct answer: Gradient of the graph repesents velocity- A. - 1 m/s.
- B. 2 m/s.
- C. 4 m/s.
- D. 6 m/s.
Explanation: The correct answer is 4 m/s as it is the highest velocity mentioned among the given options.
Correct answer: 4 m/s.- A. 1 m
- B. 1.5 m
- C. 2.5 m
- D. 5 m
Explanation: To find the difference in displacement, calculate the displacement from the starting point to 2 seconds and then from 2 seconds to 5…
Correct answer: 1.5 m- A. Falls down
- B. Remains stationary
- C. Goes up
- D. None of above
Explanation: The acceleration of the body does not depend upon the mass of the freely falling body. Hence both man and ball have the same acceleration.
Correct answer: Remains stationary- A. 4√5 km
- B. 40 km
- C. 80 km
- D. 4√2 km
Explanation: Using Pythagoras' theorem, x² = 8² + 4² x = ( 8² + 4²)½ (½ means square root) = (80)½ = (16 × 5)½ = 4 (5)½ The explanation is attached…
Correct answer: 4√5 km