2.1.2 Displacement, velocity and acceleration graphs Quiz: Pearson Edexcel Physics, Unit 2

The 20 questions

1. The gradient of a displacement-time graph gives:

   • Momentum
   • Force
   • Velocity
   • Acceleration

2. The area under a velocity-time graph represents:

   • Force
   • Velocity
   • Acceleration
   • Displacement

3. The gradient of a velocity-time graph gives:

   • Velocity
   • Acceleration
   • Jerk
   • Displacement

4. A velocity-time graph rises in a straight line from 0 at t = 0 to 20 m s^-1 at t = 4 s, then stays constant at 20 m s^-1 until t = 10 s. What is the total displacement?

   • 40 m
   • 200 m
   • 160 m
   • 120 m

5. A displacement-time graph has a steadily increasing gradient. What does this indicate about the motion?

   • The velocity is increasing.
   • The acceleration is zero.
   • The velocity is decreasing.
   • The displacement is decreasing.

6. An acceleration-time graph is a horizontal line at 2 m s^-2 from t = 0 to t = 5 s. What is the change in velocity?

   • 5 m s^-1
   • 0.4 m s^-1
   • 2 m s^-1
   • 10 m s^-1

7. A velocity-time graph has a negative gradient while the velocity is positive. What does this mean for the acceleration?

   • The acceleration is positive, so the object is speeding up.
   • The acceleration is positive, so the object is at rest.
   • The acceleration is zero, so the velocity is constant.
   • The acceleration is negative, so the object is slowing down.

8. On a curved velocity-time graph with non-uniform acceleration, what does the gradient of the tangent at a point give?

   • The average acceleration over the whole motion.
   • The instantaneous acceleration at that time.
   • The displacement at that time.
   • The average velocity over the whole motion.

9. A displacement-time graph is a horizontal straight line. What is the velocity?

   • Zero
   • Increasing
   • Constant and non-zero
   • Negative

10. A velocity-time graph starts at 2 m s^-1 and has a gradient of 3 m s^-2 for 4 s. What is the final velocity?

    • 6 m s^-1
    • 14 m s^-1
    • 10 m s^-1
    • 12 m s^-1

11. An area below the time axis on a velocity-time graph represents:

    • Acceleration in the negative direction
    • Change in speed
    • Displacement in the negative direction
    • Distance that is always positive

12. A car's velocity rises uniformly from 0 to 10 m s^-1 in 5 s and then falls uniformly to 0 in a further 10 s. What is the total distance travelled?

    • 25 m
    • 150 m
    • 50 m
    • 75 m

13. Using the motion in the previous scenario (75 m in 15 s), what is the average velocity over the whole journey?

    • 7.5 m s^-1
    • 5 m s^-1
    • 2.5 m s^-1
    • 10 m s^-1

14. A displacement-time graph passes through (2 s, 4 m) and (6 s, 20 m). What is the velocity between these points?

    • 4 m s^-1
    • 16 m s^-1
    • 0.25 m s^-1
    • 5 m s^-1

15. Which shape on a displacement-time graph indicates constant velocity?

    • A horizontal straight line
    • A curve with decreasing gradient
    • A curve with increasing gradient
    • A straight line with constant non-zero gradient

16. A velocity-time graph is a curve. How is the displacement found from it?

    • Estimate the area under the curve, for example by counting squares or using trapeziums.
    • Multiply the maximum velocity by the total time.
    • Divide the final velocity by the total time.
    • Read the gradient of the curve at t = 0.

17. An object has zero acceleration from 0 to 2 s and then an acceleration of 3 m s^-2 from 2 s to 6 s. What is the change in velocity over the whole interval?

    • 12 m s^-1
    • 6 m s^-1
    • 18 m s^-1
    • 3 m s^-1

18. A velocity-time graph shows velocity falling from 8 m s^-1 to 2 m s^-1 in 3 s. What is the acceleration?

    • -2 m s^-2
    • -0.67 m s^-2
    • +2 m s^-2
    • -6 m s^-2

19. The gradient of a tangent drawn to a displacement-time curve at a point gives:

    • The instantaneous velocity at that point.
    • The acceleration at that point.
    • The total displacement at that point.
    • The average velocity over the whole journey.

20. On the same axes, object A's velocity-time graph is steeper than object B's over the same interval. Which statement is correct?

    • A has the larger magnitude of acceleration.
    • A has the larger displacement.
    • B has the larger acceleration.
    • The two accelerations are equal.

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