MCQ Velocity Time Graphs 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. Which one is correct for the slope of velocity-time graph?

A

B

C

D

Question 1 of 22

2. The speed of the body in the time interval 14 to 18 seconds is

10 m/s

0

12 m/s

20 m/s

Question 2 of 22

3. The velocity-time graph of an object moving in a fixed direction is shown in the figure below. What do you conclude about the object?

Moves with a constant speed.

Moves with varying speeds.

Moves with a non zero acceleration.

Is at rest.

Question 3 of 22

4. For a constant acceleration, the nature of velocity-time graph is:

Graph-B

Graph-D

Graph-C

Graph-A

Question 4 of 22

5. Area under a v - t graph represents a physical quantity which has the unit:

m²

m/s

m/s²

m

Question 5 of 22

6. The acceleration of an object moving in a straight line can be determined from:

The area between the distance-time graph and time axis.

The area between the velocity-time graph and time axis

The slope of the velocity-time graph.

The slope of the distance-time graph.

Question 6 of 22

7. The correct velocity-time graph for zero acceleration is:

Graph-D

Graph-A

Graph-C

Graph-B

Question 7 of 22

8. The velocity time graph of runner is given in the graph.What is the total distance covered by the runner in 16s?

100 m

70 m

30 m

130 m

Question 8 of 22

9. The distance travelled by the body between 0 to 20 seconds?

260m

160m

300m

60m

Question 9 of 22

10. This is a velocity-time graph when the body is under:

Non-uniform retardation.

Uniform acceleration.

Uniform retardation.

Non-uniform acceleration.

Question 10 of 22

11. If the speed-time graph is a straight line parallel to the time axis, then the body is

accelerated motion

in uniform motion

non-uniform accelerated motion

at rest

Question 11 of 22

12. The velocity time graph of two bodies A and B traveling along the +x direction are given in the figure. Which body has a greater acceleration?

Body A has a greater acceleration

Body B has a greater acceleration

Both A and B have same acceleration

Acceleration cannot be predicted from the given graph

Question 12 of 22

13. If the velocity-time graph of an object is not a straight line, then its acceleration is:

Variable

Positive

Zero

Negative

Question 13 of 22

14. In a given velocity-time graph, what happens to velocity between C and D?

Velocity is infinite

Velocity is decreasing

Velocity is increasing

Velocity is constant

Question 14 of 22

15. The velocity-time graph AC of a moving particle is shown in the figure below. The acceleration of the particle is:

5 m/s²

10 m/s²

20 m/s²

2.5 m/s²

Question 15 of 22

16. The time interval between 24 to 52 seconds when the body travels the fastest is?

28 to 32 s

40 to 50 s

42 to 52 s

32 to 42s

Question 16 of 22

17. The velocity-time graph for a uniform retardation is:

Graph-C

Graph-A

Graph-D

Graph-B

Question 17 of 22

18. Assertion-The SI unit of the speed is Sms-1

Reason-SI unit gives us standard information’s

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 reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Question 18 of 22

19. Assertion- If the car is moving on straight road, the distance moved and the magnitude of displacement are equal.
Reason- Displacement is a vector quantity.

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 19 of 22

20. Assertion- average velocity is given by the arithmetic mean of initial velocity and final velocity for a given period of time.
Reason- the velocity of the object is changing at a non-uniform rate.

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 20 of 22

21. Assertion- average velocity is given by the arithmetic mean of initial velocity and final velocity for a given period of time.
Reason- the velocity of the object is changing at a uniform rate.

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- Different objects may take different amounts of time to cover a given distance.
Reason- Speed measures the rate of change of motion of an object.

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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