NCERT Solutions for Class 7 Science Chapter 13 Motion And Time

# NCERT Solutions for Class 7 Science Chapter 13 Motion And Time

## NCERT Solutions for Class 7 Science Chapter 13 Motion And Time Updated for 2024 – 25

The NCERT Solutions for Class 7 Science Chapter 13 Motion and Time tailored for the 2024-25 academic session, serve as indispensable aids for CBSE class 7 students preparing for their examinations. These NCERT solutions, meticulously curated by seasoned educators, are in perfect harmony with the latest CBSE syllabus, ensuring that students access the most pertinent and beneficial study materials. With detailed answers and comprehensive explanations, these NCERT solutions for class 7 facilitate a more efficient comprehension of the concepts of motion and time. By leveraging these resources, students can confidently navigate intricate questions and enhance their academic performance in science, aligning seamlessly with the CBSE syllabus for class 7 Science and NCERT textbook standards.

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## NCERT Solutions for Class 7 Science Chapter 13 PDF Download

In below pdf we have provided NCERT class 7 science chapter 13 pdf question answer from class 7 science NCERT textbook

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Motion & Time

## NCERT Solutions for Class 7 Science Chapter 13 Questions Answers

Here are all the science chapter 13 class 7 question answer form NCERT textbook for the year 2024-25

### Class 7 Science Chapter 13 Exercise Question Answer Page No.

1. Classify the following as motion along a straight line, circular or oscillatory motion:

Motion of your hands while running.

Motion of a horse pulling a cart on a straight road.

Motion of a child in a merry-go-round.

Motion of a child on a see-saw.

Motion of the hammer of an electric bell.

Motion of a train on a straight bridge.

2. Which of the following are not correct?

The basic unit of time is second.

Every object moves with a constant speed.

Distances between two cities are measured in kilometres.

The time period of a given pendulum is constant.

The speed of a train is expressed in m/h.

3. A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?

4. The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.

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.

6. Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.

7. Show the shape of the distance-time graph for the motion in the following cases:

A car moving with a constant speed.

A car parked on a side road.

8. Which of the following relations is correct?

Speed = Distance × Time

Speed = Distance/Time

Speed = Time/Distance

Speed = 1/Distance x Time

9. The basic unit of speed is:

km/min

m/min

km/h

m/s

10. A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:

100 km

25 km

15 km

10 km

11. Suppose the two photographs, shown in Fig. 13.1 and Fig. 13.2, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the fastest car.

12. Fig. 13.15 shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?

13. Which of the following distance-time graphs shows a truck moving with speed which is not constant?

### Overview of NCERT Solutions for Class 7 Science Chapter 13 Motion And Time

The NCERT Solutions for Class 7 Science Chapter 13, “Motion and Time,” offer a detailed exploration of fundamental concepts such as speed, measurement of time, and understanding motion. These solutions provide clear and concise explanations, along with step-by-step answers to the exercises in the NCERT textbook. Designed to aid students in grasping the intricacies of how motion is perceived and measured, these solutions are invaluable resources for reinforcing classroom learning and enhancing exam preparation. Whether tackling homework problems or preparing for assessments, these NCERT solutions ensure that students have the knowledge and skills needed to excel in their studies.

### Important Topics Covered in NCERT Solutions for Class 7 Science Chapter 13 Motion And Time

The important topics covered in NCERT Solutions for Class 7 Science Chapter 13 “Motion And Time” include:

• Introduction to motion and its types like straight line, circular, and oscillatory motion.
• Concepts of distance, displacement, and speed measurement.
• Understanding time measurement and units like seconds, minutes, and hours.
• Calculation of speed as distance covered per unit time (m/s or km/hr).
• Interpretation of distance-time graphs to analyze motion.
• Practical problem-solving related to motion and time in real-life scenarios.

## FAQs on NCERT Solutions for Class 7 Science Chapter 13 Motion And Time

### What is the use of motion and time?

Motion and time help us understand how objects move and change position over time. They are essential concepts in physics to describe the movement of things around us.

### What I learn from the chapter motion and time?

From the chapter on motion and time, you learn about different types of motion, how to measure speed, calculate distances, interpret distance-time graphs, and understand the relationship between time and motion.

### How many types of motion are there?

There are three main types of motion: straight line motion, circular motion, and oscillatory motion. Each type of motion involves objects moving in different paths or patterns.

### Does time depend on motion?

Time is independent of motion; it is a constant measure that helps us track events and changes. However, motion can affect how we perceive time, especially in relation to speed and distance covered.

### What causes motion?

Motion is caused by forces acting on objects. When a force is applied to an object, it can cause the object to move. Forces like gravity, friction, and applied forces can all lead to motion.

### What is uniform motion?

Uniform motion is when an object travels in a straight line at a constant speed. In uniform motion, the object covers equal distances in equal intervals of time, maintaining a steady pace.

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