Physics MCQs for Class 9 with Answers Chapter 1

Which of the following is a vector quantity:

Speed

Distance

Displacement

Power

A Ball is thrown vertically upward. Its velocity at the highest point is:

-10 ms-1

zero

10 ms-2

None of these

If an object is moving with constant speed then its distance time graph will be a straight line

Along time-axis

Along distance – axis

Parallel to time -axis

Inclined to time – axis

In SI units the value of ‘g’ is:

19.6 ms-2

9.8 ms-2

4.9 ms-2

12.5 ms-2

Speedometer measures the:

Velocity

Speed

Acceleration

All of these

The quantities that describe completely by magnitude and direction are:

Base

Derived

scalar

Vector

The motion of a body in straight line is:

Random Motion

Circular motion

Linear motion

Translatory motion

The average speed of Cheetah is:

60 kmh-1

75 kmh-1

70 kmh-1

80 kmh-1

On the surface of the earth , the value of g is approximately:

5 ms-2

8 ms-2

12 ms-2

10 ms-2

If the velocity of moving body in circle is doubled, then its centripetal force is

Double

Half

four times

remain