SEBA Class 7 Science Important Chapter 13 Motion and Time

SEBA Class 7 Science Important Chapter 13 Motion and Time Solutions English Medium As Per New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 7 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 7 General Science Download PDF. Important Notes for Class 7 Science SCERT.

SEBA Class 7 Science Important Chapter 13 Motion and Time

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 7 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 7 General Science Important Notes for All Chapters, You can practice these here.

Motion and Time

Chapter: 13

IMPORTANT QUESTION ANSWER

A. Very Short Type Questions & Answers:

1. What is speed?

Ans: Speed is the distance covered by an object in unit time.

2. What is the SI unit of speed?

Ans: Metre per second (m/s).

3. What is uniform motion?

Ans: When an object covers equal distances in equal intervals of time.

4. What is non-uniform motion?

Ans: When an object covers unequal distances in equal intervals of time.

5. Name one device used to measure time.

Ans: Clock or watch.

6. What is a simple pendulum?

Ans: A bob hanging from a string that swings to and fro.

7. Define time period of a pendulum.

Ans: Time taken by a pendulum to complete one oscillation.

8. What kind of motion is shown by a pendulum?

Ans: Periodic motion.

9. What is average speed?

Ans: Total distance divided by total time.

10. Name an instrument to measure speed in vehicles.

Ans: Speedometer.

B. Fill in the Blanks:

1. Speed = ______ / Time

Ans: Distance.

2. The motion of a pendulum is called ______ motion.

Ans: Periodic.

3. The SI unit of time is ______.

Ans: Second.

4. A car moving with constant speed shows ______ motion.

Ans: Uniform.

5. Distance-time graph of uniform motion is a ______ line.

Ans: Straight.

C. True or False:

1. A simple pendulum shows linear motion.

Ans: False.

2. Speed is the time taken per unit distance.

Ans: False.

3. Clocks are used to measure time.

Ans: True.

4. Non-uniform motion means equal distances in equal times.

Ans: False.

5. The speed of a vehicle can be measured using a speedometer.

Ans: True.