MCQ Speed and Velocity Chapter 8 Class 9 Science

MCQ’s For All Chapters – Science Class 9th

1. There will be total 22 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. The SI unit for speed is

km/hour

m/s

cm/min

none of the above

Question 1 of 22

2. How far will a car travel in 25 min at 12 m/s?

24 km

10 km

18 km

14 km

Question 2 of 22

3. What is the average velocity of a car that moved 60 km in 3 hours?

60 km/h

20 km/h

30 km/h

10 km/h

Question 3 of 22

4. The ______ of a distance versus time graph is speed.

slope

y-intercept

origin

none of the answers

Question 4 of 22

5. 1 km/ h = ________ m/s

3/50

18/5

50/3

5/18

Question 5 of 22

6. If car A is at 80 km/h and car B is at 60 km/h in the same direction, what is the velocity of the car A relative to the car B?

40 km/h

20 km/h

10 km/h

30 km/h

Question 6 of 22

7. Which of the following is a correct measure of velocity?

30 s

30 m/s

30 South

30 m/s, South

Question 7 of 22

8. The speed at any instant of time is known as

velocity

given speed

average speed

instantaneous speed

Question 8 of 22

9. An object travels 20 m in 5 sec and then another 40 m in 5 sec. What is the average speed of the object?

6 m/s

2 m/s

12 m/s

0 m/s

Question 9 of 22

10. ______________ describes how fast something is going, whereas, __________ describes how fast something is going in a certain direction.

rate, velocity

rate, speed

speed, velocity

speed, acceleration

Question 10 of 22

11. Speed of 90 km/h when expressed in m/s is

2.5

90000

250

25

Question 11 of 22

12. Formula to find the average velocity of a body is given by

V average=(u + v)/2

S= u t + ½ a t²

S ={u + a/2(2n-1)}

V= u+ at

Question 12 of 22

13. The speed-time graph for a particle moving at constant speed is a straight-line ________ to the time axis.

perpendicular

parallel

inclined

aligned

Question 13 of 22

14. Distance covered by a body from velocity-time graph is

Equal to the slope of the graph.

Area under the graph .

Is denoted by a line parallel to the time axis at any point on the distance axis.

Is denoted by a line parallel to the distance axis at any point on the time axis

Question 14 of 22

15. If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of the car A relative to the car B?

20 km/h

50 km/h

10 km/h

40 km/h

Question 15 of 22

16. How long would it take to travel 50 km traveling at a speed of 10 km/hr?

5 hours

1 hour

3 hours

50 hours

Question 16 of 22

17. Name the instrument used to measure instantaneous speed of a vehicle

multimeter

ammeter

speedometer

accelerator

Question 17 of 22

18. The area under the speed-time graph gives the ________.

velocity

distance

acceleration

time

Question 18 of 22

19. Assertion-we all experiences sun rise and sunset every day.
Reason-sun is moving from west to east.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Question 19 of 22

20. Assertion-we all experiences sun rise and sunset every day.

Reason- Earth is moving around the sun.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Question 20 of 22

21. Assertion : The graph between two physical quantities P and Q is straight line, when P/Q is constant.
Reason : The straight line graph means that P is proportional to Q or P is equal to constant multiplied by Q.

a.) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b.) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c.) Assertion is true but Reason is false.

d.) Assertion is false but Reason is true.

Question 21 of 22

22. Assertion : the speedometer of a car measures the instantaneous speed of the car.
Reason : Average speed is equal to the total distance covered by an object divided by the total time taken.

a.) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b.) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c.) Assertion is true but Reason is false.

d.) Assertion is false but Reason is true

Question 22 of 22

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