(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Physics

What can you say about the nature of motion of a body of its displacement-time graph is:
A straight line inclined to the time axis with an acute angle?

What can you say about the motion of a body if:
Its time-velocity graph is a straight line

Draw distance-time graph to show:
Increasing velocity

Draw distance-time graph to show:
Uniform velocity

Draw distance-time graph to show:
Decreasing velocity

Draw velocity-time graph to show:
Acceleration
Write a sentence to explain the shape of graph.

Draw velocity-time graph to show:
Deceleration
Write a sentence to explain the shape of graph.

Draw velocity-time graph to show:
Zero acceleration
Write a sentence to explain the shape of graph.

Interpret the following graph:

What does the slope of velocity-time graph represent?

Figure shows the velocity-time graphs for two objects A and B moving in same direction . Which object has the greater a cceleration?

Sketch the shape of the velocity-time graph for a body moving with:
Uniformly velocity

Derive the equation
S = ut+ `1/2` at²
Using a speed- time graph

Draw the distance-time graphs of the bodies P and Q starting from rest, moving with uniform speeds with P moving faster than Q.

Figure shows the distance-time graph of three students A, B and C. On the basis of the graph, answer the following :

Which of the three is traveling the fastest?

Figure shows the distance-time graph of three students A, B and C. On the basis of the graph, answer the following :

Will the three ever meet at any point on the road?

Figure shows the distance-time graph of three students A, B and C. On the basis of the graph, answer the following :

When B meets A, where is C?

Figure shows the distance-time graph of three students A, B and C. On the basis of the graph, answer the following :

How far did B travel between the time he passed C and A?

(i) In speed time graph uniform motion is given by a straight line parallel to x axis so figure (a) denotes the uniform motion.
(ii) In speed time graph motion with increasing speed is shown by straight line with positive slope so figure (c) denotes the motion with speed increasing.
(iii) In speed time graph motion with decreasing speed is shown by straight line with negative slope so figure (b) denotes the motion with speed decreasing.
(iv) In speed time graph motion with oscillating speed is shown by zigzag line so figure {d) denotes the motion with speed oscillating.