National 5PhysicsSQAExam QuestionsDynamicsAcceleration

Acceleration (SQA National 5 Physics): Exam Questions

Exam code: X857 75

11 mins4 questions
1
Sme Calculator1 mark

A car is travelling at 6·0 m s-1 along a straight level road.

The car then accelerates uniformly at 2·0 m s-2 for 4·0 s.

The final speed of the car is

  • 8·0 m s-1

  • 14 m s-1

  • 22 m s-1

  • 26 m s-1

  • 48 m s-1

Choose your answer

21 mark

The graph shows how the speed v of a car varies with time t.

Line graph showing velocity (v) against time (t) with points O, P, Q, R, S, T. Lines slope up, level, then down, illustrating velocity changes.

During which part of the journey does the car have the greatest acceleration?

  • OP

  • PQ

  • QR

  • RS

  • ST

Choose your answer

3
Sme Calculator3 marks

The graph represents the motion of a bus travelling along a straight, level road between two stops.

Graph showing velocity versus time with points A to D. Velocity rises to 9 m/s from 0 to 20s, stays constant, then falls back to 0 by 80s.

Calculate the acceleration of the bus between C and D.

How did you do?

4
Sme Calculator6 marks

Two students are investigating the acceleration of a trolley down a ramp.

The first student uses the apparatus shown to determine the acceleration of the trolley.

Diagram showing a physics experiment setup with a trolley on a ramp passing through two labelled light gates (X and Y) connected to electronic timers.

Some of the measurements made by the student are shown.

Time for the card to pass through light gate Y

0·098 s

Distance between light gate X and light gate Y

0·22 m

Length of the card

0·045 m

Time for trolley to pass between light gate X and light gate Y

0·56 s

The student determines the instantaneous speed of the trolley at light gate X to be 0·32 m s−1.

(i) State the additional measurement made by the student to determine the instantaneous speed of the trolley at light gate X.

[1]

(ii) Show that the instantaneous speed of the trolley at light gate Y is 0·46 m s−1.

[2]

(iii) Determine the acceleration of the trolley down the ramp.

[3]

How did you do?