IB Middle Years Programme (MYP) · Sciences

Describing motion: speed, velocity and acceleration: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Describing motion: speed, velocity and acceleration.

10 questions22 marksFree, no account

Question 1

1 mark

If an object moves at a constant velocity, what can be said about its acceleration?

Question 2

1 mark

An athlete runs around a circular track of circumference \( 400 \text{ m} \) in \( 50 \text{ s} \). What is the athlete's average speed and average velocity for one complete lap?

Question 3

1 mark

Which unit is used to measure acceleration in the International System of Units (SI)?

Question 4

1 mark

A car accelerates from \( 10 \text{ m/s} \) to \( 30 \text{ m/s} \) over a distance of \( 80 \text{ m} \). Assuming constant acceleration, how much time did this take?

Question 5

1 mark

A runner starts from rest and reaches a velocity of \( 6 \text{ m/s} \) in \( 3 \text{ s} \). What is the runner's average acceleration?

Question 6

3 marks

A car decelerates uniformly from \( 20 \text{ m/s} \) to a complete stop in \( 5 \text{ seconds} \). What is the acceleration of the car?

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Question 7

3 marks

In a displacement-time graph, what does the slope (gradient) of the line represent?

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Question 8

2 marks

A train moves with a constant velocity of \( 25 \text{ m/s} \) for \( 10 \text{ seconds} \). What is the acceleration of the train during this period?

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Question 9

4 marks

A sprinter runs a straight 100-meter race. He starts from rest and accelerates uniformly to reach his maximum speed of \(12 \text{ m/s}\) in the first \(4 \text{ seconds}\).

(a) Calculate the acceleration of the sprinter during the first 4 seconds.
(b) Calculate the distance traveled by the sprinter during this acceleration phase.

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Question 10

5 marks

A delivery drone flies from its base to a drop-off point. It travels \(3000 \text{ meters}\) due North in \(5 \text{ minutes}\) and then immediately turns and travels \(4000 \text{ meters}\) due East in \(5 \text{ minutes}\).

(a) Calculate the drone's average speed for the entire trip in \(\text{m/s}\).
(b) Calculate the drone's average velocity for the entire trip (magnitude only) in \(\text{m/s}\).

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