Question

MCQ
Topic: 8. Motion
Std: IX
Subject: Physics
The area under the velocity-time graph indicates
A. average velocity B. distance
C. speed
D. acceleration
When an object speeds up from 10 m/s to 70m/s in 3s, then its acceleration is
D. 20 cm/s?
C. 26 m/s
A. 20 m/s2 B. 21 m/s?
The SI unit of acceleration is
A. m/s
B. km/s?
C. m/s?
D. cm/s
Suppose a train travels at an average speed of 7 m/s. In one and half hours, it
would travel a distance of
D. 37800 m
C. 630 m
B. 7.71 km
A. 10.5 km
Which statement is true about uniform circular motion from the followings?
B. Velocity is constant
A. Acceleration is constant
D. Direction of motion is fixed
C. Displacement is zero
Identify a physical quantity which cannot be negative is
B. Velocity
A. Speed
D. Acceleration
C. displacement​

Answer 1

Answer:

1. None of the options given above are correct .

--->Displacement.

2. A.20m/s^2

3. C. m/s^2

4. C.630m

5. A. acceleration is constant.

6.A. Speed

Thank you

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Hope it's helpful .

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