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Describing Motion Video Lecture - Class 9

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00:07 Definition of uniform and non uniform motion
00:29 Example of uniform motion
01:44 Example of non uniform motion
02:48 Question 1

FAQs on Describing Motion Video Lecture - Class 9

1. What is motion?
Ans. Motion is defined as the change in position of an object with respect to time. It is the movement of an object from one place to another.
2. What are the types of motion?
Ans. There are three types of motion: 1. Translational motion - when an object moves in a straight line, 2. Rotational motion - when an object rotates about an axis, and 3. Vibrational motion - when an object vibrates about a fixed point.
3. What is the difference between distance and displacement?
Ans. Distance is the total length covered by an object during its motion, whereas displacement is the shortest distance between the initial and final position of an object in a particular direction.
4. What is speed and velocity?
Ans. Speed is defined as the distance covered per unit time, whereas velocity is the displacement covered per unit time in a specific direction.
5. What is the formula for calculating average speed?
Ans. The formula for calculating average speed is given as: Average speed = Total distance covered / Total time taken.
Video Timeline
Video Timeline
arrow
00:07 Definition of uniform and non uniform motion
00:29 Example of uniform motion
01:44 Example of non uniform motion
02:48 Question 1
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