The diagram shows the route O P Q R taken by a car and graph shows speed time graph for the car journey. The car starts from rest at O . State what the car was doing in the interval Q R .

Acceleration is the rate of change of velocity. When a body is accelerating its velocity will change. In the interval Q R , speed of car is decreasing with respect to time. This means car is retarding and acceleration is negative.

The diagram shows the route O P Q R taken by a car and graph shows speed time graph for the car journey. The car starts from rest at O . Is the average speed during the journey same as maximum speed shown on the graph?

Average speed is lower than maximum speed at most of the time. Average speed can be equal to maximum speed only if speed is constant throughout the journey. Also, it can never be greater than maximum speed.

The graph is a distance/time graph shows motion of an object. Describe the motion shown for the first 2 seconds.

For the first 2 seconds, distance is increasing uniformly with respect to time. Also, the graph is a straight line. This means speed is constant i.e. the object is moving with constant speed. As in uniform motion, the distance time graph would be a straight line, because the equal distance is covered in equal units of time.

The graph is a distance/time graph shows motion of an object. After 2 s the object accelerates. Sketch possible graph after 2 s .

For the first 2 seconds, distance is increasing uniformly with respect to time. Also, the graph is a straight line. This means speed is constant i.e. the object is moving with constant speed. After 2 seconds, when the object accelerates, speed is not uniform. Hence, the graph will take shape of parabola.

The graph is a distance/time graph shows motion of an object. Describe how a distance time graph shows that an object is stationary.

If an object is stationary, then with passage of time, distance remains constant. It does not increase with time as shown in graph. After 2 s , the object is stationary.

E M B I B E

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions

David Sang Solutions for Chapter: Describing Motion, Exercise 9: End-of-chapter questions

Author:David Sang

David Sang Physics Solutions for Exercise - David Sang Solutions for Chapter: Describing Motion, Exercise 9: End-of-chapter questions

Attempt the free practice questions on Chapter 2: Describing Motion, Exercise 9: End-of-chapter questions with hints and solutions to strengthen your understanding. Cambridge IGCSE® Physics Coursebook Second Edition solutions are prepared by Experienced Embibe Experts.

Questions from David Sang Solutions for Chapter: Describing Motion, Exercise 9: End-of-chapter questions with Hints & Solutions

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 19

The diagram shows the route $O P Q R$ taken by a car and graph shows speed time graph for the car journey.

Question Image

The car starts from rest at $O$ . State what the car was doing in the interval $Q R$ .

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 19

The diagram shows the route $O P Q R$ taken by a car and graph shows speed time graph for the car journey.

Question Image

The car starts from rest at $O$ . Is the average speed during the journey same as maximum speed shown on the graph?

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 20

The graph is a distance/time graph shows motion of an object.

Question Image

Describe the motion shown for the first $2$ seconds.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 20

The graph is a distance/time graph shows motion of an object.

Question Image

After $2 s$ the object accelerates. Sketch possible graph after $2 s$ .

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 20

The graph is a distance/time graph shows motion of an object.

Question Image

Describe how a distance time graph shows that an object is stationary.

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 20

The graph is a distance/time graph shows motion of an object. Draw a speed time graph for motion in $2$ seconds.

Question Image

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 2 - Describing Motion>End-of-chapter questions>Q 20

The graph is a distance/time graph shows motion of an object. Draw a speed time graph for next $2$ seconds if object is accelerating at $2 m / s^{2}$ .

Question Image