MCQ Equations of Motion Chapter 8 Class 9 Science

MCQ’s For All Chapters – Science Class 9th

1. There will be total 14 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. A man is moving with 36 kmph. The time of reaction is 0.9 seconds. On seeing an obstacle in the path, he applies brakes and decelerates at 5 m/s2, the total distance covered before he stops is:

19 m

17 m

16 m

18 m

Your comments:

Question 1 of 14

2. The ratio of the heights from which two bodies are dropped is 3:5 respectively. The ratio of their final velocities is:

9 : 25

√ 3 : √ 5

5 : 3

√5 : √3

Your comments:

Question 2 of 14

3. A body starts to slide over a horizontal surface with an initial velocity of 0.2 m/s. Due to friction, its velocity decreases at the rate of 0.02 m/s2. How much time will it take for the body to stop?

10 s

15s

1s

5s

Your comments:

Question 3 of 14

4. If you whirl a stone on the end of the string and the string suddenly breaks, the stone will:

Fly off along the tangent to its circular path.

Fly directly towards you.

Spiral away from your hand.

Spiral in towards your hand.

Your comments:

Question 4 of 14

5. To describe the motion of an object we first specify a

The acceleration of the body

Reference point

The speed

The direction of motion

Your comments:

Question 5 of 14

6. The third equation of motion is

A

B

C

D

Your comments:

Question 6 of 14

7. An athlete uniformly increases his speed from rest at the rate of 1 m/s2. The time taken to complete 200 m race is:

10 s

14 s

5 s

20 s

Your comments:

Question 7 of 14

8. The equations of motion can be derived by using:

Distance - time graph

Velocity - time graph for non-uniform acceleration

Displacement time graph

Velocity - time graph for uniform acceleration

Your comments:

Question 8 of 14

9. A racing car has a uniform acceleration of 6 m/s². In 10s it will cover:

300m

100m

200m

350m

Your comments:

Question 9 of 14

10. A body performs an accelerated motion, with uniform speed. The motion of body is

Linear

Circular

Parabolic

Irregular

Your comments:

Question 10 of 14

11. 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 reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Question 11 of 14

12. Assertion- To specify the speed of an object we required its magnitude.
Reason- Speed 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 12 of 14

13. Assertion- The velocity of an object can be a uniform as well as variable.
Reason- Velocity can be changed by changing the object speed and direction of motion.

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 13 of 14

14. Assertion- Earth is an example of uniform circular motion.
Reason- When an object moves in a circular path with the uniform speed the speed of motion is known as uniform circular motion.

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 14 of 14

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