Video by EduDeck – The Learning App – Samacheer Kalvi via YouTube
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Book Back Questions & Answers, Exercises, Solutions, Tests, Quizzes, Videos and Podcasts for Class 9 | Motion| Unit 2 | Physics | Science | Samacheer Kalvi – English Medium | TNPSC

Solutions: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/motion/exercises

Podcasts: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/motion/videos

Tests & Quizzes: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/motion/tests

Flash Cards: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/motion/flashcards

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00:00 Introduction
00:12 Choose the correct answer
03:22 Fill in the blanks
05:46 True or false
03:38 Match the following
09:06 Assertion and reason

Questions answered in this video –

1. The area under velocity time graph represents the

2. Which one of the following is most likely not a case of uniform circular motion?

3. The centrifugal force is

4. Speed is a __________ quantity whereas velocity is a _________ quantity.

5. The slope of the distance time graph at any point gives __________

6. Negative acceleration is called ________

7. Area under velocity time graph shows ____________

8. The motion of a city bus in a heavy traffic road is an example for uniform motion

9. Acceleration can get negative value also

10. Distance covered by a particle never becomes zero but displacement becomes zero.

11. The velocity time graph of a particle falling freely under gravity would be a straight line parallel to the x axis.

12. If the velocity time graph of a particle is a straight line inclined to X-axis then its displacement time graph will be a straight line

13. (A): The accelerated motion of an object may be due to change in magnitude of velocity or direction or both of them… (R): Acceleration can be produced only by change in magnitude of the velocity. It does not depend the direction.

14. (A): The Speedometer of a car or a motor-cycle measures its average speed.. (R): Average velocity is equal to total displacement divided by total time taken.

15. (A): Displacement of a body may be zero when distance travelled by it is not zero… (R): The displacement is the shortest distance between initial and final position.

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