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 driver plans to take a total of two hours to make a journey of 75 km. The driver allocated a rest time of 45 mins in the middle of the journey.

At what average speed must the driver travel during the rest of the time if she wants to complete the journey in the two hours?

38 km/h

75 km/h

50 km/h

60 km/h

2. Which of the following defines acceleration?

$\frac{\text{Change In Distance}}{\text{Time Taken}}$

$\frac{\text{Change In Distance In A Fixed Direction}}{\text{Time Taken}}$

$\frac{\text{Change In Speed}}{\text{Time Taken}}$

$\frac{\text{Change In Velocity}}{\text{Time Taken}}$

3. The average speed of a car is $35 \text{ km h}^{-1}$. How far can it travel in 45 minutes?

26.25 km

129 km

0.78 km

467 km

4. A boy jogs around his neighbourhood for 1.5 hours as shown in the following diagram:

(a) What is his displacement?

(b) What is the total distance he jogged?

(c) What is his average speed?

(a) 14 km, (b) 0 km and (c) 9.33 km/hr

(a) 0 km, (b) 14 km and (c) 14 km/hr

(a) 14 km, (b) 0 km and (c) 14 km/hr

(a) 0 km, (b) 14 km and (c) 9.33 km/hr

5. A car accelerates from rest to $10 \, \text{m s}^{-1} $ in 2 seconds. What is the distance traveled by the car?

10 m

5 m

20 m

2 m

6. A car travels 9 km southwards, followed by 5 km eastwards. 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: 14 km Displacement: 10.3 km

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

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

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

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

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

8. A ball is thrown downwards at a velocity of 8 m/s and bounces upwards. Which of the following is its velocity-time graph?

[Assume no air resistance or energy lost and take downwards motion as positive direction]

 

4) None of the above

 

2)

1)

4)

3)

9. A car travels at a constant speed of $5 \, \text{m s}^{-1} $ for 2 seconds, then accelerates at a rate of $4 \, \text{m s}^{-2} $ for 3 seconds. What is the total distance traveled by the car?

43 m

28 m

46 m

61 m

10. 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?

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

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

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

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

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