Class 7 Science Worksheet: Measurement of Time and Motion

Looking for a Class 7 Science Measurement of Time and Motion worksheet for practice and exam preparation? The Busy Brains brings you a comprehensive worksheet covering important questions on speed, time period, oscillations, uniform and non-uniform motion, distance, displacement and distance–time graphs.

This Class 7 Science worksheet with MCQs, assertion–reason questions, short answers, long answers and case studies helps students revise key concepts and practise numerical problems. It is useful for school tests, homework, classroom assessment and science revision.

Topics covered in this worksheet

Speed, average speed and SI units
Simple pendulum, oscillations and time period
Uniform and non-uniform motion
Circular motion and rotational motion
Distance, displacement and unit conversions
Distance–time graphs and case-based questions

How to use this worksheet: Read every question carefully, show all calculations for numerical problems, and draw neat, labelled graphs wherever required.

THE BUSY BRAINS • SCIENCE PRACTICE

Class 7 Science – Measurement of Time and Motion Worksheet

Important exam-style questions for concept revision and practice.

Class 7Science 5 SectionsMCQs & Numericals

SECTION A – OBJECTIVE TYPE QUESTIONS (1 mark each)

Choose the correct option.

Q1. Which of the following is NOT a unit of speed?

m/s
km/h
m²/s
cm/s

Q2. A simple pendulum completes 50 oscillations in 40 seconds. Its time period is:

0.8 s
1 s
1.2 s
2 s

Q3. Which of the following describes non-uniform motion?

A car moving at 40 km/h constantly
A clock’s second hand
A child running and slowing down
Earth revolving around the Sun

Q4. The device that measures the speed of a vehicle is called:

Thermometer
Speedometer
Odometer
Barometer

Q5. The formula to calculate speed is:

Distance × Time
Distance ÷ Time
Time ÷ Distance
(Distance × Time) ÷ 2

Q6. Which is an example of periodic motion?

A car moving on a road
A moving train
Swinging of a pendulum
A rocket taking off

Assertion–Reason Questions

For Q7–Q8, choose the correct option:

A and R are both true; R explains A.
A and R are both true; R does not explain A.
A is true; R is false.
A is false; R is true.

Q7.

Assertion (A): A pendulum stops swinging after some time.

Reason (R): Friction and air resistance slow down its motion.

Q8.

Assertion (A): Speed is a scalar quantity.

Reason (R): Speed has magnitude and direction.

SECTION B – VERY SHORT ANSWERS (2 marks each)

Q9. What is meant by non-uniform motion? Give one example.

Q10. Define speed. Give its SI unit.

Q11. What is an oscillation?

Q12. A cyclist covers 25 km in 1 hour and 50 minutes. Find his average speed in km/h.

Q13. Write any two differences between distance and displacement.

SECTION C – SHORT ANSWERS (3 marks each)

Q14. Distinguish between circular motion and rotational motion with examples.

Q15. Explain why a simple pendulum takes approximately the same time to complete each oscillation when it swings through small angles.

Q16. A bus travels 150 km in 3 hours and another 120 km in 2 hours.

(a) Find the total distance.

(b) Find the total time.

Q17. Describe any three types of motion with examples.

Q18. Convert the following:

(a) 54 km/h into m/s

(b) 20 m/s into km/h

Q19. Identify the time-measuring device shown in the figure. What is the principle behind its working?

Time-measuring device science question for Class 7

SECTION D – LONG ANSWERS (5 marks each)

Q20. Explain in detail the steps involved in constructing a distance–time graph. Draw a rough distance–time graph for an object moving with uniform speed.

Q21. Describe the working of a simple pendulum. Explain:

Time period
Oscillation
Factors affecting the time period

Q22. What is meant by uniform and non-uniform speed? Explain with suitable examples and draw a neat, labelled distance–time graph for both.

SECTION E – CASE STUDY QUESTIONS

Case Study 1: Riya’s Bicycle Trip

Riya recorded the distance travelled by her bicycle at different times.

Time (min)	0	5	10	15	20
Distance (m)	0	60	130	130	200

Answer the following:

(a) What was Riya’s speed during the first 5 minutes?

(b) Was she at rest at any time?

Case Study 2: A Car Journey

A car’s odometer reading at the start of a journey is 10,520 km. After 2 hours, it reads 10,600 km. The speedometer shows a nearly constant speed.

(a) What is an odometer?

(b) How much distance did the car travel?

Case Study 3: Distance–Time Graph

The graph below shows the change in distance covered by a student as he walks from home to the playground.

Distance-time graph for Class 7 Science motion worksheet

Study the distance–time graph carefully and answer the following questions:

(a) What does the horizontal line between points B and C tell you about the student's movement during that interval?

(b) From 0 to 4 minutes, is the student moving with a constant speed? Explain your answer using the graph.

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