A car travels a distance of 100 km in 2 hours.

The car did not travel at 50 km / h all the time

The car travelled 50 km / h all the time

EASY

Earn 100

Define instantaneous speed.

Important Questions on Measurements and Motion

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A car travels half distance with speed

20 m s^{- 1}

and next half distance travel with

30 m s^{- 1}

the average speed of the car is

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A boy covers a distance of

260 m

20 s

and another distance of

300 m

20 s

. The average speed of the boy is :

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A train moving in uniform

90 km {hr}^{- 1}

is approaching a flag station whose platform is

500 m

long. The station master is standing at the centre of the platform. The train starts blowing the whistle when the engine is

1 km

away from the near end of the platform and continues blowing the whistle till engine crosses of the platform without stopping. If the speed of the sound is assumed to be

300 {ms}^{- 1}

, then the duration for which station master hears the whistle is?

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

The ratio of average speed of a scooter moving at

300 m / \min

and a car moving at

27 km / hr

is:

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

The rate of change in distance is called

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

An object travels

20 m

5 s

and then another

40 m

5 s

. What is the average speed of the object?

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

If a body traverses a distance in direct proportion to the time, the speed of the body is _____.

(stationary, zero, changing, constant, displacement, velocity, speed, acceleration, stationary but not zero, increases)

HARD

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A stone is attached to a string

2 m

long and whirled round in horizontal circle. It completes one rotation in one second. The angular velocity and linear speed of the stone is

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

Which of the following is not vector quantity?

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

An object is moving in a circle of radius

100 m

with a constant speed of

31.4 m s^{- 1}

. What is its average speed for one complete revolution?

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A bridge is

400 m

long. A

150 m

long train crosses the bridge at a speed of

50 m s^{- 1}

. Time taken by the train to cross it is _____.

HARD

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A bus is travelling the first one-third distance at a speed of

10 km h^{- 1}

, the next one-fourth at

20 km h^{- 1}

and the remaining at

40 km h^{- 1}

. What is the average speed of the bus?

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

Which of the following relations is correct?

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

Which one of the following is not a vector quantity?

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A person takes time

t

to go once around a circular path of diameter

2 R

. The speed (

v

) of the person would be

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

An object travels

18 m

3 s

and then another

30 m

5 s

. What is the average speed of the object?

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

When two bodies moves uniformly towards each other, then they cross each other at the speed of

10 m s^{- 1}

. If both the bodies move in the same direction, then they cross each other at the speed of

6 m s^{- 1}

. The speed of both bodies are :

MEDIUM

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

A car travels a distance of

100 km

2

hours.

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

The moon is at a distance of

4 \times 10^{8} m

from the earth. A radar signal is transmitted from the earth will reach the moon in about :

EASY

Science>Physics>Measurements and Motion>Measuring the Rate of Motion

Average speed is equal to total _____ upon time.

Define instantaneous speed.

Important Questions on Measurements and Motion

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