NCERT Solutions for Class 7 Science Chapter 13  Motion and Time: Earlier you have learned about different types of motions. You learned that a motion could be along a straight line, it could be circular or periodic. We know that some vehicles move faster than others. Even the same vehicle may move faster or slower at different times. The most convenient way to find out which of the two or more objects is moving faster is to compare the distances moved by them in unit time. Thus, if we know the distance covered by two buses in one hour, we can tell which one is faster. We call the distance covered by an object in a unit time as the speed of the object. All you will study in this chapter is the motion of any object and the time covered by them.
Here are the important topics of NCERT Solutions for Class 7 Science Chapter 13  Motion and Time mentioned below:
13.1 Slow or Fast
13.2 Speed
13.3 Measurement of Time
Units of Time and Speed
13.4 Measuring Speed
13.5 Distancetime Graph
This chapter will also tell you that the distance moved by an object in a unit time is called its speed. Speed of objects helps us to decide which one is moving faster than the other. The speed of an object is the distance traveled divided by the time taken to cover that distance. Its basic unit is meter per second (m/s). Periodic events are used for the measurement of time. The periodic motion of a pendulum has been used to make clocks and watches. The motion of objects can be presented in pictorial form by their distancetime graphs. The distancetime graph for the motion of an object moving with a constant speed is a straight line.
After going through this chapter, you must be able to get the NCERT Solution of these questions which are mentioned below, as these questions are from the Science book of NCERT.
Q1. A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?
Q2. The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.
Q3. The odometer of a car reads 57321.0 km when the clock shows the time at 08:30 AM. What is the distance moved by car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.
If you have any problem in answering these questions or you are not getting the correct answers then don't worry, NCERT Solutions for Class 7 Science Chapter 13  Motion and Time is there for you to help. Solutions for NCERT Class 7 Science Chapter 13  Motion and Time will give you answers to all the questions which are mentioned in the NCERT book.
First of all, try to answer all the questions by yourself. Then, if you need any help, NCERT Solutions for Class 7 will suggest you the best answers which are written by our experts.
Chapter No. 
Chapters Name 
Chapter 1 

Chapter 2 

Chapter 3 

Chapter 4 

Chapter 5 

Chapter 6 

Chapter 7 

Chapter 8 

Chapter 9 

Chapter 10 

Chapter 11 

Chapter 12 

Chapter 14 

Chapter 15 

Chapter 16 

Chapter 17 

Chapter 18 
13. Which of the following distancetime graphs shows a truck moving with a speed which is not constant?
(iii) (iv)
12. Fig. 13.15 shows the distancetime graph for the motion of two vehicles A and B. Which one of them is moving faster?
5. The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.