Worksheet – Acceleration (Year 9 Physics)

Q1: A ball is dropped and its speed increases from 0 m/s to 15 m/s in 3 seconds. What is its acceleration?

3 m/s² 5 m/s² 15 m/s² 45 m/s²

Q2: A skateboarder decelerates at 1 m/s² from an initial speed of 12 m/s until they come to a stop. How long did this take?

6 s 12 s 24 s 1 s

Q3: A plane accelerates from 50 m/s to 80 m/s with an acceleration of 10 m/s². How long did the acceleration last?

2 s 3 s 5 s 8 s

Q4: A car slows down from 28 m/s to 12 m/s in 8 seconds. What is its deceleration?

2 m/s² 2.5 m/s² 5 m/s² 3.5 m/s²

Q5: A car accelerates at 5 m/s² for 7 seconds. If its initial speed was 0 m/s, what is its final speed?

1.4 m/s 12 m/s 35 m/s 70 m/s

Q6: A ball rolling down a hill accelerates at 0.5 m/s² for 10 seconds. If its initial speed was 1 m/s, what is its final speed?

10.5 m/s 5 m/s 6 m/s 15 m/s

Q7: A car accelerates from 15 m/s to 30 m/s with an acceleration of 2.5 m/s². How long did this take?

6 s 10 s 12 s 7.5 s

Q8: A train accelerates at a constant rate of 0.8 m/s² for 10 seconds, reaching a final speed of 18 m/s. What was the initial speed of the train?

8 m/s 10 m/s 26 m/s 14.4 m/s

Q9: A cyclist pedals and accelerates at 0.5 m/s² over a period of 8 seconds. If their final speed is 12 m/s, what was their initial speed?

4 m/s 8 m/s 16 m/s 20 m/s

Q10: A spacecraft decelerates from 500 m/s to 200 m/s in 30 seconds. What is its deceleration?

5 m/s² 10 m/s² 30 m/s² 9 m/s²

Q11: A boat increases its speed by 12 m/s in 4 seconds. What is its acceleration?

3 m/s² 48 m/s² 8 m/s² 16 m/s²

Q12: Which one of the following quantities is a vector?

Time Mass Velocity Temperature

Q13: What is a vector in physics?

A quantity with magnitude only A quantity with direction only A quantity with both magnitude and direction A rate of change of scalar quantity