Section 1: Rest and Motion
Section 2: Describing Motion
- Lesson 2.1: Motion Along a Straight Line
- Lesson 2.2: ‘Scalar’ vs ‘Vector’
- Lesson 2.3: ‘Distance’ vs ‘Displacement’
- Lesson 2.4: ‘Speed’ vs ‘Velocity’
- Lesson 2.5: Average Speed & Average Velocity
- Example 2.1: Calculating Average Speed
- Example 2.2: Calculating Average Speed
- Lesson 2.6: Rate of Change of Velocity : Acceleration
Section 3: Graphical Representation of Motion
- Lesson 3.1: Introduction
- Lesson 3.2: Distance-Time Graph for Uniform Motion
- Lesson 3.3: The concept of ‘Slope’ of a Straight Line
- Lesson 3-4: Finding Velocity from Distance-Time Graph
- Lesson 3-5: ‘Velocity-Time’ Graph for Uniform Motion
- Lesson 3-6: Velocity-Time Graph for Uniformly Accelerated Motion
- Lesson 3-7: Finding ‘Acceleration’ from velocity-time graph
- Lesson 3-8: Finding ‘displacement’ from velocity-time graph
Section 4: Equations of Motion
Section 5: NCERT Exercises
Test Your Learning: Activity 1.1:
Activity: Discuss whether the walls of your classroom are at rest or in motion.
[Hint: The concepts needed to answer this question has been discussed in Lesson 1.3]
Answer: It will depend on where we take the reference point to be.
If we take the reference point on the earth’s surface, then the walls will be at rest.
But if we take the reference point on the sun (or at any other point in outer space), then the walls will be in motion, since they will be moving around the sun together with the earth.