Have you ever asked yourself how we determine the time a pendulum takes to swing or how we determine the speed of a moving car? Class 7 Science Chapter 8 - Measurement of Time and Motion is an answer to that. This chapter discusses the various forms of motion, time measurements and calculation of speed using simple and relatable examples. It aids students in relating real-world observations, such as a car being driven on the road or a ball rolling, to science.
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The NCERT Solutions for Class 7 Science Chapter 8 - Measurement of Time and Motion give step-wise solutions to all questions set in the textbook, and this way, even the difficult concepts are simple to comprehend. Several critical aspects related to speed, distance-time graphs, time measurement and pendulum clocks are simplified in explanation. The NCERT solutions are made by subject experts according to the latest CBSE syllabus 2025-26 to make sure students do not make some typical errors when converting units and using the formulas. They are useful study guides, whether it is school exams, fast revision, or a strong foundation to competitive exams, since NCERT Solutions for Class 7 Science Chapter 8 - Measurement of Time and Motion provide good guidance. These facilitate self-directed learning, enhance critical thinking and improve self-confidence. Using clear explanations, solved examples, and exam-oriented instructions, Measurement of Time and Motion NCERT Solutions have made the science of motion and time measurement easier than ever before.
Measurement of Time and Motion class 7 question answers are provided in a simple and downloadable PDF format, which makes the preparation of exams more flexible and efficient. These are step-by-step solutions to all questions of the textbook that include necessary topics like types of motion, methods of measurement of time, distance-time graphs, pendulum clocks, and calculation of speed. By using this free PDF, students have the ability to revise with ease, on their mobile, laptop or tablet, without even having to be connected online. The Measurement of Time and Motion Class 7 question answers, prepared by highly qualified teachers according to the newest NCERT syllabus 2025-26, will allow students to acquire a good conceptual knowledge of the subject, reduce mistakes in unit conversions, and ready the student to take exams. These Class 7 Science Chapter 8 - Measurement of Time and Motion question answers help to revise faster, have a clear understanding of concepts and increase confidence when tackling both textbook problems and exam-based problems.
The Measurement of Time and Motion class 7 question answers give a structured solution to all the exercise questions of Chapter 7 of the textbook. These solutions describe such concepts as types of motion, speed, time measurement, pendulum clocks, and distance-time graphs in plain language so that they are easy to understand. These Measurement of Time and Motion NCERT Solutions are designed based on the most recent NCERT syllabus (2025-26), to ensure that the students are well-prepared to take the exam and have a solid grounding in physics.
Q1. Calculate the speed of a car that travels 150 metres in 10 seconds. Express your answer in km/h.
Answer:
Distance
Time taken
Q2. A runner completes 400 metres in 50 seconds. Another runner completes the same distance in 45 seconds. Who has a greater speed and by how much?
Answer:
Runner 1:
Distance
Time
Runner 2:
Distance
Time
Difference
Hence, speed of runner 2 is greater by approximately
Q3. A train travels at a speed of 25 m/s and covers a distance of 360 km. How much time does it take?
Answer:
Q4. A train travels 180 km in 3 h. Find its speed in:
(i) km/h
(ii) m/s
(iii) What distance will it travel in 4 h if it maintains the same speed throughout the journey?
Answer:
Distance
(i) Speed
(ii) Speed in
(iii) Time
Distance
Q5. The fastest galloping horse can reach a speed of approximately 18 m/s. How does this compare to the speed of a train moving at 72 km/h?
Answer:
Speed of horse
Speed of train
The train is faster by
Q6. Distinguish between uniform and non-uniform motion using the example of a car moving on a straight highway with no traffic and a car moving in city traffic.
Answer:
Uniform motion: If an objects covers equal distances in equal distance in equal intervals of time, its motion is said to be uniform. A car moving on a straight highway with no traffic is an example of uniform motion.
Non-uniform motion: If an object covers unequal distances in equal interval of time, its motion is said to be non-uniform. A car moving in a traffic is an example of nonuniform motion.
Q7. Data for an object covering distances in different intervals of time are given in the following table. If the object is in uniform motion, fill in the gaps in the table.
Answer:
In uniform motion, object covers equal distances in equal intervals of time. Hence, the speed of an object remains constant throughout the motion.
The object covers 8 m in every 10 seconds. Hence, the speed of an object remains constant at 0.8 m/s throughout the motion.
Q8. A car covers 60 km in the fi rst hour, 70 km in the second hour, and 50 km in the third hour. Is the motion uniform? Justify your answer. Find the average speed of the car.
Answer:
The car covers different distances in each hour. Hence, the motion of the car is nonuniform.
Total distance
Total time
Hence, the average speed of the car is
Q9. Which type of motion is more common in daily life — uniform or non-uniform? Provide three examples from your experience to support your answer.
Answer:
In our daily life, most motions are nonuniform because object do not move at the same speed all the time. Their speed changes due to factors like traffic, rough or uneven roads and other obstacles.
Examples:
• Travelling in a bus on an uneven road
• Playing cricket
• Walking through a crowded market
Q10. Data for the motion of an object are given in the following table. State whether the speed of the object is uniform or non-uniform. Find the average speed.
Answer:
The object exhibits non-uniform motion, because it covers
Q11. A vehicle moves along a straight line and covers a distance of 2 km. In the first 500 m, it moves with a speed of 10 m/s and in the next 500 m, it moves with a speed of 5 m/s. With what speed should it move the remaining distance so that the journey is complete in 200 s? What is the average speed of the vehicle for the entire journey?
Answer:
Given
Total distance
Total time
Step 1: Time taken to cover the first 500 m
Step 2: Time taken to cover the next 500 m
Step 3: Remaining distance
Step 4: Speed required to cover the remaining 1000 m
Step 5: Average speed
The chapter Measurement of Time and Motion assists the students to comprehend the recognition of motion, its measurement, and calculation using such concepts as speed, distance, and time. In order to effectively answer questions in this chapter, one should pay attention to conceptual clarity and logical use. Here's a useful approach:
Below are the important topics covered in Class 7 Science Chapter 8 Motion and Time. These topics will help you understand different types of motion, how to measure time, and calculate speed accurately
8.1 Measurement of Time
8.1.1 A simple pendulum
8.1.2 SI unit of time
8.2 Slow or Fast
8.3 Speed
8.4 Uniform and Non-uniform Linear Motion
1. Clearly Defined Concepts
Solutions offer clear and sequential descriptions of such concepts as speed, time, distance, periodic and non-periodic motion and normal units.
2. Proper Use of Formulae & Units
Students are taught how to work with formulas (such as Speed = Distance/Time) correctly, learn the concept of SI units, conversion formula and computing techniques that are used to solve numerical questions.
3. Boosts Calculation and Problem-Solving Skills
The detailed solution of numerical problems and reasoning question papers enhances the mathematical and analytical skills of students. Solutions provide ways in which students interpret and solve tables or diagrams in motion graphs and questions.
4. Helps in Exam Preparation
Model answers reflect current NCERT question trends, which equip students to deal with all kinds of exam questions, objective, short answer, long answer, and HOTS (Higher Order Thinking Skills).
The NCERT Solutions of Class 7 Science give step by step solutions of all the chapters of the new NCERT textbook. These solutions assist students to develop a good foundation, to plan well before exams, and to comprehend concepts easily. It is easy to revise or access any topic with the chapter-wise links, making it easier to learn and more organised.
Frequently Asked Questions (FAQs)
The NCERT curriculum Class 7 Science covers various chapters such as nutrition, heat transfer, plant reproduction, motion, and electric current, with exercises and activities to make learning interactive.
You can follow the Science textbook for Class 7 NCERT which is designed according to the CBSE syllabus and covers all important scientific concepts in simple language with examples.
Yes, a swing moves back and forth on a regular basis and is a type of periodic motion, just like a simple pendulum
Not really. Speed is mainly dependent upon the force applied to the object and the surface it is travelling on. A heavy object might travel slower if not enough force is applied.
Some devices we can use to measure time are clocks, watches, stopwatches, sundials, water clocks, and sand timers.
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