CBSE 11 Physics - Part 1 | 3. MOTION IN A PLANE by Pavan | Learn Smarter
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3. MOTION IN A PLANE

The chapter outlines the essential concepts of motion in a plane, distinguishing between scalar and vector quantities, and showcasing how vectors can be added, subtracted, and multiplied. Key topics include motion under constant acceleration, projectile motion, and uniform circular motion, supported by a range of examples and exercises that illustrate these principles in action.

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Sections

  • 3

    Motion In A Plane - Introduction

    This section introduces the concept of motion in a plane, focusing on the use of vectors to describe qualities like position, displacement, velocity, and acceleration.

    Learning Practice

  • 3.1

    Scalars And Vectors

    This section classifies physical quantities into scalars and vectors, highlighting their differences primarily concerning direction and magnitude.

    Learning Practice

  • 3.1.1

    Position And Displacement Vectors

    This section introduces position and displacement vectors, explaining their significance in describing motion in a plane.

    Learning Practice

  • 3.2.2

    Equality Of Vectors

    Two vectors are equal if they have the same magnitude and direction.

    Learning Practice

  • 3.2

    Multiplication Of Vectors By Real Numbers

    This section discusses the effect of multiplying vectors by real numbers, which impacts their magnitude and direction depending on the sign of the scalar.

    Learning Practice

  • 3.3

    Addition And Subtraction Of Vectors — Graphical Method

    The section covers the graphical methods for adding and subtracting vectors, emphasizing the triangle and parallelogram laws of vector addition.

    Learning Practice

  • 3.4

    Resolution Of Vectors

    This section covers the resolution of vectors into components, detailing how any vector can be expressed as a combination of two non-collinear vectors.

    Learning Practice

  • 3.5

    Vector Addition – Analytical Method

    This section introduces the analytical method of vector addition, contrasting it with the graphical method, while providing formulas for calculating resultant vectors.

    Learning Practice

  • 3.6

    Motion In A Plane

    This section introduces the concept of describing motion in two dimensions using vectors, focusing on position vectors, velocity, and acceleration.

    Learning Practice

  • 3.6.1

    Position Vector And Displacement

    This section introduces the concept of the position vector and how displacement is calculated using the position of a particle in a two-dimensional plane.

    Learning Practice

  • 3.6.2

    Velocity

    Velocity represents the rate of change of position and is defined as a vector quantity with both magnitude and direction.

    Learning Practice

  • 3.6.3

    Acceleration

    This section defines acceleration in a two-dimensional motion and distinguishes between average and instantaneous acceleration.

    Learning Practice

  • 3.7

    Motion In A Plane With Constant Acceleration

    This section discusses the motion of an object in a two-dimensional plane under constant acceleration, detailing how velocity and position change over time.

    Learning Practice

  • 3.8

    Projectile Motion

    Projectile motion is the motion of an object in flight, governed by horizontal and vertical components under the influence of gravity.

    Learning Practice

  • 3.9

    Uniform Circular Motion

    Uniform circular motion refers to motion in a circular path with a constant speed, where the object's velocity continuously changes due to the change in direction.

    Learning Practice

  • 3.10

    Summary

    This section distinguishes between scalar and vector quantities, covering their properties and operations.

    Learning Practice

  • 3.11

    Points To Ponder

    This section contrasts path length and displacement, average speed and velocity, and discusses circular motion and resultant velocities.

    Learning Practice

References

NCERT Study Material

Class Notes

Memorization

What we have learnt

  • Scalar quantities have only...
  • Vector addition can be perf...
  • Projectile motion and unifo...

Final Test

Revision Tests