Class 9 Exam > Class 9 Videos > Science Class 9 > Quick Revision: Motion
Quick Revision: Motion Video Lecture | Science Class 9
FAQs on Quick Revision: Motion Video Lecture - Science Class 9
| 1. What is motion in physics? |  |
Ans. Motion in physics is the change in position of an object over time in relation to a reference point. It can be described in terms of distance, displacement, speed, velocity, and acceleration.
| 2. What are the different types of motion? | |
Ans. The different types of motion include linear motion, circular motion, rotational motion, periodic motion, and oscillatory motion.
| 3. What is the difference between speed and velocity? | |
Ans. Speed is a scalar quantity that measures the rate at which an object covers distance, while velocity is a vector quantity that measures the rate and direction of an object's motion.
| 4. How is acceleration related to motion? | |
Ans. Acceleration is the rate of change of velocity with respect to time. It can be positive (increasing velocity), negative (decreasing velocity), or zero (constant velocity).
| 5. How can the motion of an object be represented graphically? | |
Ans. The motion of an object can be represented graphically using distance-time graphs, speed-time graphs, or velocity-time graphs. These graphs show the relationship between different motion parameters over time.
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