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NEET Physics: velocity-time Practice Questions

14 free multiple-choice questions on velocity-time (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.

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  1. Q1. A bus travels a distance of 200 meters in 10 seconds. What is the average velocity of the bus?

    • A10 m/s
    • B100 m/s
    • C20 m/s
    • D200 m/s
    Show answer & explanation

    Correct answer: C — 20 m/s

    Average velocity = Distance / Time. Average Velocity = 200 m / 10 s = 20 m/s.

  2. Q2. For an object moving with uniform acceleration, the velocity-time graph is a straight line. What does the slope of this line represent?

    • AThe displacement
    • BThe time interval
    • CThe acceleration
    • DThe total distance
    Show answer & explanation

    Correct answer: C — The acceleration

    The slope of a straight line on a v-t graph represents the constant acceleration of the object.

  3. Q3. If the velocity-time graph is a trapezoid, what does the area of the trapezoid represent?

    • ATotal distance traveled
    • BNet displacement
    • CAcceleration
    • DAverage velocity
    Show answer & explanation

    Correct answer: B — Net displacement

    The area under a trapezoidal velocity-time graph represents the total displacement covered during that time interval.

  4. Q4. What is the physical significance of the area under a velocity-time curve between two points?

    • AIt represents the velocity at the end point.
    • BIt represents the total time taken for the motion.
    • CIt represents the instantaneous acceleration.
    • DIt represents the total displacement between the two points.
    Show answer & explanation

    Correct answer: D — It represents the total displacement between the two points.

    The area under a velocity-time curve represents the total displacement (distance traveled) during that time interval.

  5. Q5. A car travels a distance of 150 km in 3 hours. Calculate the average velocity of the car.

    • A150 km/h
    • B50 km/h
    • C30 km/h
    • D45 km/h
    Show answer & explanation

    Correct answer: D — 45 km/h

    Average velocity is calculated as Total Distance divided by Total Time. Average Velocity = 150 km / 3 h = 50 km/h.

  6. Q6. If a particle moves with a constant positive velocity, the corresponding velocity-time graph will appear as a:

    • ACurved line
    • BHorizontal line
    • CDiagonal line
    • DVertical line
    Show answer & explanation

    Correct answer: B — Horizontal line

    Constant velocity means the change in velocity over time is zero, resulting in a horizontal line on the v-t graph.

  7. Q7. Which quantity is calculated by the definite integral of the velocity function with respect to time?

    • AForce
    • BAcceleration
    • CVelocity
    • DDisplacement
    Show answer & explanation

    Correct answer: D — Displacement

    The definite integral of velocity with respect to time yields the total displacement.

  8. Q8. If the velocity-time graph is a horizontal line, what can be concluded about the motion of the object?

    • AThe object is decelerating
    • BThe object is at rest
    • CThe object is accelerating
    • DThe object is moving at a constant velocity
    Show answer & explanation

    Correct answer: D — The object is moving at a constant velocity

    A horizontal line indicates that the velocity is not changing, meaning the object is moving with a constant velocity (zero acceleration).

  9. Q9. Which statement correctly describes the meaning of the area under a velocity-time curve?

    • AThe total displacement of the particle
    • BThe average velocity
    • CThe distance covered
    • DThe instantaneous acceleration
    Show answer & explanation

    Correct answer: C — The distance covered

    The area enclosed under the velocity-time curve represents the distance covered by the particle during that time interval.

  10. Q10. A particle is moving along a straight line. If the velocity-time graph is a horizontal line, what can be concluded about the motion of the particle?

    • AThe particle is at rest
    • BThe particle is moving with constant velocity
    • CThe particle is moving with uniform acceleration
    • DThe particle is accelerating
    Show answer & explanation

    Correct answer: B — The particle is moving with constant velocity

    A horizontal velocity-time graph signifies that the velocity is not changing over time, meaning the particle is moving with constant velocity (zero acceleration).

  11. Q11. The slope of a velocity-time graph represents which physical quantity?

    • AVelocity
    • BDisplacement
    • CAcceleration
    • DDistance
    Show answer & explanation

    Correct answer: C — Acceleration

    The slope of a velocity-time graph (Δv / Δt) represents the rate of change of velocity, which is acceleration.

  12. Q12. The area under a velocity-time graph gives which physical quantity?

    • AForce
    • BVelocity
    • CAcceleration
    • DDisplacement
    Show answer & explanation

    Correct answer: D — Displacement

    The area under the velocity-time graph represents the total displacement covered by the object during that time interval.

  13. Q13. If an object is moving with zero acceleration over a time interval, what is the relationship between its initial velocity and final velocity?

    • AThe final velocity is equal to the initial velocity.
    • BThe final velocity is zero if the initial velocity is zero.
    • CThe final velocity is always less than the initial velocity.
    • DThe final velocity is always greater than the initial velocity.
    Show answer & explanation

    Correct answer: A — The final velocity is equal to the initial velocity.

    Zero acceleration implies that the velocity is constant. Therefore, the final velocity must be equal to the initial velocity.

  14. Q14. The area enclosed under a velocity-time graph represents which physical quantity?

    • AForce
    • BAcceleration
    • CDisplacement
    • DVelocity
    Show answer & explanation

    Correct answer: C — Displacement

    The area under the velocity-time graph gives the total displacement of the particle during that time interval.

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