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 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

130 m

199 m

137 m

2. In the absence of air resistance, what happens to the acceleration of a ball being thrown into the air, as it rises to greater heights?

Zero

Remains constant

Decreases

Increases

3. If the displacement-time graph of a particle's movement is a straight line with gradient m (where m is positive), what can we conclude about its acceleration-time graph?

Straight line with negative gradient

Straight line with positive gradient

Constant

Zero

4. A car accelerates uniformly from $5 \text{ m s}^{-1}$ to $13 \text{ m s}^{-1}$ in 4.0 seconds. What is the acceleration of the car in $\text{m s}^{-2}$?

0.8

1.25

2.00

0.5

5. A racing car accelerates uniformly through three gear changes with the following average speeds:

$20 \, \text{m} \, \text{s}^{-1} $ for 2.0 s

$40 \, \text{m} \, \text{s}^{-1} $ for 2.0 s

$60 \, \text{m} \, \text{s}^{-1} $ for 6.0 s

What is its average speed?

$48 \, \text{m} \, \text{s}^{-1} $

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

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

$40 \, \text{m} \, \text{s}^{-1} $

6. The motion of a toy car is measured by a ticker tape timer as shown in the diagram below. Which of the following statements best describe its motion?

The toy car was first traveling at a constant speed. It then accelerated and traveled at a higher constant speed before stopping eventually.

The toy car was first traveling at a constant speed. It then accelerated and traveled at a higher constant speed before decelerating and coming to a stop eventually.

The car was accelerating at first before slowing down and stopping eventually.

The toy car was first traveling at a constant speed. It then sped up and then slowed down before coming to a stop eventually.

7. A ticker tape timer produces 50 dots on a tape in 1 second. Below is a portion of the tape:

 

How long was the time taken to produce the above strip?

1 second

0.02 seconds

0.20 seconds

0.22 seconds

8. Which of the following statements best describe this velocity-time graph?

The object travels at constant acceleration.

The object travels at constant velocity.

The object travels at increasing velocity.

The object travels with increasing acceleration.

9. 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) 0 km, (b) 14 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) 14 km, (b) 0 km and (c) 9.33 km/hr

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

4 km

5 km

14 km

9 km

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