Motion and Time Class 7

Speed of a car is 40km/h. What is the time taken if the distance between 2 cities is 480 km?

• 10 h

• 11h

• 14 h

• 12 h

Boojho walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is

• 8.3

• 7.2

• 6.3

• 9.2

Tags

NGSS.MS-PS3-1

Time=

• d/s

• d*s

• s*d

Device used to measure speed of a car is

• graph

• odometer

• speedometer

• none

If the speed of a moving body changes the the body is in

• non uniform motion

• uniform motion

• both

• none of these

Tags

NGSS.MS-PS3-1

Which among the 2 objects is moving faster or both are at same speed?

(a)  

Tags

NGSS.MS-PS3-1

What can you depict from the graph?

• object is in uniform motion

• object is in non uniform motion

• object has constant speed

• object is stationary

Tags

NGSS.MS-PS3-1

What can you depict from the given graph?

• Object is moving with a constant speed

• Object is stationary

• Object is in uniform motion

• Object is in non uniform motion

Tags

NGSS.MS-PS3-1

Which of the following relations is correct?

• Speed = Distance × Time

• Speed = Distance/Time

• Speed = Time / Distance

• Speed = 1 Distance Time

Tags

NGSS.MS-PS3-1

Which of these can only measure time interval and not the time of day?

• sand clock

• sundial

• pendulum clock

• quartz clock