Class 11 Physics — Chapter 2: MOTION IN A STRAIGHT LINE

What you'll learn

• ▸Rectilinear Motion and Point Objects
• ▸Instantaneous Velocity
• ▸Graphical Interpretation of Velocity
• ▸Speed and Velocity
• ▸Acceleration
• ▸Kinematic Equations for Uniformly Accelerated Motion
• ▸Relative Velocity in One Dimension

Chapter Summary

--- PAGE 1 --- CHAPTER TWO MOTION IN A STRAIGHT LINE 2.1 Introduction 2.2 Instantaneous velocity and speed 2.3 Acceleration 2.4 Kinematic equations for uniformly accelerated motion 2.5 Relative velocity Summary Points to ponder Exercises 2.1 INTRODUCTION Motion is common to everything in the universe. We walk, run and ride a bicycle. Even when we are sleeping, air moves into and out of our lungs and blood flows in arteries and veins. We see leaves falling from trees and water flowing down a dam. Automobiles and planes carry people from one place to the other. The earth rotates once every twenty-four hours and revolves round the sun once in a year. The sun itself is in motion in the Milky Way, which is again moving within its local group of galaxies. Motion is change in position of an object with time. How does the position change with time ? In this chapter, we shall learn how to describe motion. For this, we develop the concepts of velocity and acceleration. We shall …

Practice Questions from this Chapter

Tap "Get Solution" on any question to ask our AI tutor.

1. Explain relative velocity simply? Get Solution →
2. Give examples of constant acceleration? Get Solution →
3. Describe straight-line motion examples? Get Solution →
4. What is the study of motion without considering its causes called? Get Solution →
5. Motion along a straight line is also known as what type of motion? Get Solution →
6. What is the SI unit of acceleration? Get Solution →
7. In the language of calculus, instantaneous velocity is denoted by which expression? Get Solution →
8. What does the slope of the tangent to a position-time graph at a specific instant represent? Get Solution →

Did you know?

• 💡 Your own body contains atoms that are constantly moving at incredible speeds.
• 💡 Light travels so fast it circles Earth over seven times in one second.
• 💡 Some bacteria can swim at speeds equivalent to a human running 200 kilometers per hour.
• 💡 A bullet experiences thousands of G's of acceleration when fired from a gun.
• 💡 From space, even a parked car is traveling thousands of miles per hour due to Earth's rotation.

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