1
1 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
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Acceleration (SQA National 5 Physics): Exam Questions
Exam code: X857 75
11 mins4 questions
2
1 mark
The graph shows how the speed v of a car varies with time t.
During which part of the journey does the car have the greatest acceleration?
OP
PQ
QR
RS
ST
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3
3 marks
The graph represents the motion of a bus travelling along a straight, level road between two stops.
Calculate the acceleration of the bus between C and D.
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4
6 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.
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]
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