NEET Physics: Kinematics Practice Questions
13 free multiple-choice questions on Kinematics for NEET Physics, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more Kinematics questions in the app →Q1. Two vectors are considered orthogonal if their dot product is:
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Correct answer: C — Zero
Two vectors are orthogonal (perpendicular) if the angle between them is 90°, which implies cos(90°) = 0, making their dot product zero.
Q2. Which quantity describes the rate of change of distance traveled with respect to time?
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Correct answer: A — Instantaneous velocity
Instantaneous velocity describes the rate at which the position (distance) is changing at an exact moment in time.
Q3. An object is moving in a circle at a constant speed. What is its acceleration?
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Correct answer: C — Centripetal acceleration
Even if the speed is constant, the object is constantly changing its direction, resulting in centripetal acceleration directed towards the center of the circle.
Q4. A particle moves along the x-axis. Its position changes from x=5 m to x=15 m. What is the magnitude of the displacement?
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Correct answer: D — 10 m
Displacement is the change in position, calculated as final position minus initial position. Displacement = 15 m - 5 m = 10 m.
Q5. If the instantaneous velocity of a particle is zero at a certain point, what does this imply about its motion at that exact moment?
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Correct answer: D — The particle is momentarily at rest.
When instantaneous velocity is zero, it means the particle has stopped moving momentarily at that specific point, even if it is about to change direction.
Q6. What is the difference between distance and displacement?
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Correct answer: C — Distance is the total path length, displacement is the shortest straight-line separation between the initial and final points.
Distance is the total path length traveled by an object, regardless of direction (scalar). Displacement is the shortest straight-line distance between the initial and final positions (vector).
Q7. If two vectors have the same magnitude but opposite directions, their resultant vector will be:
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Correct answer: B — Zero
If two vectors have equal magnitude but opposite directions (e.g., A⃗ and -A⃗), their resultant vector is the zero vector, as their components cancel out.
Q8. A bus travels a distance of 200 meters in 10 seconds. What is the average velocity of the bus?
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Correct answer: C — 20 m/s
Average velocity = Distance / Time. Average Velocity = 200 m / 10 s = 20 m/s.
Q9. If the angular velocity of a rotating object is doubled, while the radius of the circular path remains constant, what happens to the tangential velocity of the object?
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Correct answer: A — It is doubled
Tangential velocity (v) is related to angular velocity (ω) and radius (r) by the formula v = rω. If ω is doubled and r is constant, the tangential velocity v must also be doubled.
Q10. Consider a particle moving along a straight line. If the observer is stationary relative to the particle, what type of frame of reference is this?
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Correct answer: A — C An inertial frame
A frame where the observer is stationary relative to the object being observed is defined as an inertial frame, as it is not accelerating.
Q11. Which statement accurately describes the relationship between the shape of a position-time graph and acceleration?
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Correct answer: B — A straight line indicates uniform acceleration
For an object moving with constant acceleration, the position-time graph is a curve (specifically, a parabola if initial velocity is zero) whose slope changes linearly, meaning the shape is generally curved. A straight line implies constant velocity (zero acceleration).
Q12. The magnitude of the force required to maintain a particle in uniform circular motion is defined as:
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Correct answer: D — Centripetal force
The net force required to cause the centripetal acceleration is called the centripetal force, which is directed towards the center of the circle.
Q13. For an object moving in a circle at a constant speed, the net force acting on the object is directed:
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Correct answer: C — Radially inward towards the center
In uniform circular motion, the velocity is constantly changing direction, meaning there must be an acceleration directed towards the center. The net force responsible for this acceleration is the centripetal force, which is directed radially inward.
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