Class 9 Exam > Class 9 Videos > Science Class 9 > Motion: Introduction & Graphs
Motion: Introduction & Graphs Video Lecture | Science Class 9
FAQs on Motion: Introduction & Graphs Video Lecture - Science Class 9
| 1. What is motion? |  |
Ans. Motion is the change in position of an object over time with respect to a reference point.
| 2. What are the different types of motion? | |
Ans. The different types of motion include linear motion, circular motion, and periodic motion.
| 3. How is motion represented graphically? | |
Ans. Motion can be represented graphically using distance-time graphs, speed-time graphs, and velocity-time graphs.
| 4. What is the difference between speed and velocity in motion? | |
Ans. Speed is a scalar quantity that only indicates how fast an object is moving, whereas velocity is a vector quantity that also includes the direction of motion.
| 5. How can we calculate acceleration in motion? | |
Ans. Acceleration is calculated by dividing the change in velocity by the time taken for that change to occur. Mathematically, acceleration = (final velocity - initial velocity) / time.
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