motion class 9

Front

Which of the following statement is correct regarding velocity and speed of a moving body?

Back

Velocity of a moving body is its speed in a given direction

Front

Which of the following is most likely not a case of uniform circular motion? Options: Motion of the earth around the sun, Motion of a toy train on a circular track, Motion of a racing car on a circular track, Motion of hours’ hand on the dial of a clock

Back

Motion of a racing car on a circular track

Front

In which of the following cases of motions, the distance moved and the magnitude of the displacement are equal? i. If the car is moving on a straight road ii. If the car is moving in circular path iii. The pendulum is moving to and fro iv. The earth is moving around the sun

Back

If the car is moving on a straight road

Front

Rate of change of displacement is called

Back

Velocity

Front

The average velocity of a body is given by the expression :

Back

V_av=(u + v)/2

Front

Acceleration is a vector quantity, which indicates that its value

Back

Can be positive, negative or zero

Front

SI Unit of measurement of acceleration is

Back

m/s²

Front

The S.I. unit of force is

Back

Newton

Front

What does the slope of a distance-time graph give?

Back

Speed

Front

You walk 10 meters to math class in 20 seconds. What is your average speed?

Back

0.5 m/s