State the principle of sand clock.

Important Questions on Time and Motion

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

In a distance-time graph, what type of a motion does a car show which is not moving with a constant speed?

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

In a distance-time graph, what type of a motion does a straight line represent?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

What points should be kept in mind while plotting the distance-time graph?

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

What is the difference between uniform and non-uniform motion? Explain with the help of an example.

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

What is the amplitude and time period of a simple pendulum?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

The distance travelled by a bus at various time intervals are as follows:
Draw a distance-time graph for the bus.

Distance (m)	$0$	$10$	$20$	$30$	$40$	$50$
Time (s)	$0$	$4$	$8$	$12$	$16$	$20$

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

The distance travelled by a bus at various time intervals are as follows:
What would be the nature of motion of the bus?

Distance (m)	$0$	$10$	$20$	$30$	$40$	$50$
Time (s)	$0$	$4$	$8$	$12$	$16$	$20$

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 13 - Time and Motion>ASSESSMENT ZONE>Q F

What would be the speed ($\mathrm{in} \mathrm{km}/\mathrm{h}$) of a car if it covers a distance of $400 \mathrm{k}\mathrm{m}$ in $5$ hours?