Class 9 Exam > Class 9 Videos > Describing Motion
Describing Motion Video Lecture - Class 9
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.
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Nov 24, 2024 Last updated |
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