Practice MCQs For Speed, Velocity & Acceleration

This quiz contains practice questions for Speed, Velocity & Acceleration (O Level). There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.

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1. A car travelling at 70 km/hr slows down to 50 km/hr in 30 minutes. What is its acceleration?

$-40 \, \text{m}/\text{s}^{2}$

$-10 \, \text{km}/\text{hr}^{2}$

$40 \, \text{km}/\text{hr}^{2}$

$-40 \, \text{km}/\text{hr}^{2}$

2. A car travels 9 km southwards, followed by 5 km northwards. What is the magnitude of its distance and displacement?

Distance: 14 km Displacement: 14 km

Distance: 14 km Displacement: 4 km

Distance: 4 km Displacement: 14 km

Distance: 4 km Displacement: 4 km

3. A car is brought to rest in 5 seconds from a speed of $10 \text{ ms}^{-1}$. What is the average deceleration of the car?

$0.5 \text{ ms}^{-2}$

$2 \text{ ms}^{-2}$

$15 \text{ ms}^{-2}$

$50 \text{ ms}^{-2}$

4. A train travelling at an average speed of 60 km/hr comes to a complete stop in 20 minutes' time. What is its deceleration?

$180 \, \text{km}/\text{hr}^{2}$

$-180 \, \text{km}/\text{hr}^{2}$

$3 \, \text{km}/\text{hr}^{2}$

$-3 \, \text{km}/\text{hr}^{2}$

5. A ball is thrown vertically upwards off a cliff at a speed of $23 \, \text{m s}^{-1} $. It falls to the bottom of the cliff after 10 seconds. What is the height of the cliff? $ \left( g = 10 \, \text{m s}^{-2} \right) $

267 m

137 m

130 m

199 m

6. A car travels 9 km southwards, followed by 5 km eastwards. What is its southward displacement?

14 km

5 km

4 km

9 km

7. A car accelerates from $12 \, \text{m s}^{-1} $ to $2 \, \text{m s}^{-1} $ over a period of 5 seconds. What is its acceleration?

$-1 \, \text{m s}^{-1} $

$2 \, \text{m s}^{-1} $

$-2 \, \text{m s}^{-1} $

$1 \, \text{m s}^{-1} $

8. A bicycle was travelling at $20 \, \text{m} \, \text{s}^{-1} $  when it applied its brakes and decelerated at a rate of $5 \, \text{m}/\text{s}^{2}$.

(a) How long will it take before it comes to a stop? (b) How far will it travel before stopping?

5 s, 40 m

4 s, 40 m

4 s, 20 m

5 s, 20 m

9. A ball which is thrown vertically upwards at $1.2 \text{ m s}^{-1}$ decelerates uniformly at $10 \text{ m s}^{-2}$. How long will it take to reach zero velocity?

2.4 s

0.12 s

12.0 s

6.0 s

10. A car accelerates from $3 \, \text{m s}^{-1} $ to $15 \, \text{m s}^{-1} $ in 6 seconds. What is it's acceleration.

$5 \, \text{m s}^{-2} $

$2 \, \text{m s}^{-2} $

$3 \, \text{m s}^{-2} $

$0 \, \text{m s}^{-2} $

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