Observe the graphs and answer the questions. What type of motion is shown by the body here?

The distance-time graph for a body moving with non-uniform speed is not a straight line because it covers unequal distances in equal intervals of time. The shape of the distance-time graph depends upon the way speed changes with time. When speed of an object decreases with time the shape of the graph is like a decreasing curve, as the speed decreases with increase in time.

E M B I B E

Sciwise - A coursebook of Science>Chapter 15 - Time and Motion>EXERCISE>SKILLS FOR LIFE

EASY

7th CBSE

IMPORTANT

Earn 100

Speed limit is more at highway than your local neighbourhood. Why do you think there are different specified speed limits for different locations? Why do you think this is so?

Important Questions on Time and Motion

EASY

7th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 15 - Time and Motion>EXERCISE>SKILLS FOR LIFE

What should be done to aware people to obey speed limits? Come up with any two ideas.

HARD

7th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 15 - Time and Motion>EXERCISE>SKILLS FOR LIFE

In incidents of road accidents or road rash, often the people involved get into an argument. Sometimes, this escalates into a physical fight. How might two car owners on the road resolve a conflict arising out of a road accident, without causing further harm to each other?

MEDIUM

7th CBSE

IMPORTANT

Sciwise - A coursebook of Science>Chapter 15 - Time and Motion>EXERCISE>Q 1

Following figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?

Question Image