MCQ Distance Time Graphs Chapter 8 Class 9 Science

MCQ’s For All Chapters – Science Class 9th

1. There will be total 23 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. Distance-time graph of two objects A and B are shown below.
Which statement is true for the speed of object A and B?

Speed of object A is greater than object B

Speed of object A is less than object B

Both have same speed

Speed of Object A is double the speed of object B.

Question 1 of 23

2. Which of the following figures represent uniform motion of a moving object correctly?

(b)

(d)

(c)

(a)

Question 2 of 23

3. In a distance-time graph, if the line is horizontal, then the object is:

Accelerating

Speeding up

At rest

Slowing down

Question 3 of 23

4. The distance covered by the body between 30-40 seconds is

40m

50m

60m

20m

Question 4 of 23

5. On the distance-time graph, the Y-axis should be labelled as:

Distance

Displacement

Speed

Time

Question 5 of 23

6. The motion represented by the displacement-time graph below is:

Uniform-motion with zero initial displacement.

Non-uniform motion with finite value of initial displacement.

Non-uniform motion with zero initial displacement.

Uniform-motion with finite value of initial displacement.

Question 6 of 23

7. The slope of the distance-time graph is:

Distance

acceleration

Speed

Displacement

Question 7 of 23

8. For a body performing motion with uniform speed, the distance-time graph is:

Straight line parallel to y-axis

Straight line inclined to the time axis

Straight line parallel to x-axis

Curved line

Question 8 of 23

9. What is the speed of the object in the 10 second interval from 40-50 seconds?

2 m/s

1 m/s

0.25 m/s

0.5 m/s

Question 9 of 23

10. The figure above shows distance-time graphs of two objects X and Y. Which object is moving with greater speed?

Both objects are at rest

Both objects are moving with same speed

Object Y

Object X

Question 10 of 23

11. Which of the following graphs shows that the body is at rest?

Graph-A

Graph-C

Graph-B

Graph-D

Question 11 of 23

12. In the distance-time graph of a cyclist, what is happening between B-C and C-D?

B-C: cyclist is coming back to where he started, C-D: cyclist is stationary.

B-C: cyclist is stationary, C-D: cyclist is accelerating.

cyclist is stationary, C-D- speed is increasing

B-C: cyclist is stationary, C-D: cyclist is coming back to where he started.

Question 12 of 23

13. The distance-time graph below shows that an object is moving with:

Uniform acceleration

Non-uniform speed

Uniform speed

Zero speed, that is at rest

Question 13 of 23

14. What is the slope of distance-time graph when object is at rest?

Decreases continuously

Zero

Increases continuously

One

Question 14 of 23

15. Without actually calculating the speed, can you guess in which time interval is the body moving fastest?

20-40 s

40-50 s

90-100 s

80-90 s

Question 15 of 23

16. In which of the following graphs are both runners moving at the same speed?

Graph-C

Graph-A

Graph-D

Graph-B

Question 16 of 23

17. The displacement-time graph for a body is given below. State whether the velocity and acceleration of the body in the region DE are positive, negative or Zero.

V= +ve but a=0

V = -ve and a = -ve

V = + ve and a = + ve

V = +ve and a = -ve

Question 17 of 23

18. Which sentence best describes the athlete whose distance-time graph is shown below?

The athlete ran forward for 3 seconds, and then he ran backward for 3 more seconds.

The athlete ran forward for 3 seconds, and then he stood still for 3 more seconds.

The athlete ran forward for 3 seconds, and then he ran forward for 3 more seconds but with a lower speed.

The athlete ran forward for 3 seconds, and then he moved forward for 3 more seconds with a greater speed.

Question 18 of 23

19. The following position-time graph of an object shows that the body

No such inference can be made from the graph.

Has non-uniform motion.

Has uniform motion.

Is at rest.

Question 19 of 23

20. Assertion : When the displacement of a body is directly proportional to the square of the time. Then the body is moving with uniform acceleration.
Reason : The slope of the velocity-time graph with a time axis gives acceleration.

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 23

21. Assertion: The accelerated motion of an object may be due to change in magnitude of velocity or direction or both of them.
Reason: Acceleration can be produced only by change in magnitude of the velocity. It does not depend the direction.

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 23

22. Assertion-we all experience sunrise and sunset every day.
Reason-Mars 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.) Assertion is false but Reason is true.

Question 22 of 23

23. Assertion- To specify the speed of an object we required its magnitude.
Reason-magnitude is the scalar 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 23 of 23

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