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?

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

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

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

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

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

Distance: 14 km Displacement: 10.3 km

Distance: 14 km Displacement: 4 km

Distance: 4 km Displacement: 14 km

Distance: 14 km Displacement: 14 km

3. A car accelerates from $3 \, \text{m s}^{-1} $ to $9 \, \text{m s}^{-1} $ in 2 seconds. What is its average speed?

$3 \, \text{m s}^{-1} $

$9 \, \text{m s}^{-1} $

$12 \, \text{m s}^{-1} $

$6 \, \text{m s}^{-1} $

4. What information would you expect to find from a given velocity-time graph?

The velocity

The velocity, displacement and acceleration

The velocity and displacement

The velocity and acceleration

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

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

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

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

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

6. A boy throws a ball up into the air. The initial velocity of the ball was 6 m/s. Taking $g = 10 \, m/s^{2}$ and assuming there was no air resistance, find

(a) The maximum height the ball reaches,

(b) The velocity of the ball when it reaches the boy's hand,

(c) The time the ball is up in the air

[Take the upwards motion to be negative]

1.8 m, 6 m/s, 1.2 s

1.8 m, 6 m/s, 0.6 s

-1.8 m, 6 m/s, 1.2 s

-1.8 m, 6 m/s, 0.6 s

7. A car, with an initial speed of $3 \, \text{m s}^{-1} $, accelerates at a rate of $2 \, \text{m s}^{-2} $ for 10 seconds. What is the speed of the car after the 10 seconds.

$23 \, \text{m s}^{-1} $

$3 \, \text{m s}^{-1} $

$20 \, \text{m s}^{-1} $

$30 \, \text{m s}^{-1} $

8. What must change when a body is accelerating?

the speed of the body

the force acting on the body

the mass of the body

the velocity of the body

9. A car, with an initial speed of $3 \, \text{m s}^{-1} $ accelerates at a rate of $0 \, \text{m s}^{-2}$ for 10 seconds. What is the speed of the car after the 10 seconds?

$13 \, \text{m s}^{-1} $

$0 \, \text{m s}^{-1} $

$30 \, \text{m s}^{-1} $

$3 \, \text{m s}^{-1} $

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?

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

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

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

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

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