Subject: General Science
Book: NCERT Science Class 9
Motion refers to the movement of an object from one place to another. It is described in terms of **distance, displacement, speed, velocity, and acceleration**.
- **Types of Motion**:
- Uniform Motion: An object moves at a constant speed (example: A train moving at 60 km/hr).
- Non-Uniform Motion: Speed changes over time (example: A car stopping at signals).
- **Equations of Motion**:
- v = u + at
- s = ut + ½ at²
- v² = u² + 2as
- **Graphical Representation**: Distance-time and velocity-time graphs help in understanding motion patterns.
**Possible Exam Questions:**
1. Define displacement and differentiate it from distance.
2. Derive the equations of motion using graphical methods.
3. Explain uniform and non-uniform motion with examples.
4. How is velocity different from speed?
5. Solve numerical problems on motion using equations.
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