Concise notes for class 9 physic Force and Laws of Motion

Physics Formulas

Class 9 Physics chapter- Force and Laws of Motion 

"Force is the cause which can produce acceleration in the body on which is acts".

Types of Forces

The forces that we come across in our daily life, are divided into two types:

  1. Balanced Forces
  2. Unbalanced Forces 

Balanced Forces

If the resultant of all the forces acting on a body is zero, the forces are called balanced forces.

balanced force

Unbalanced Forces

If the resultant of all the forces acting on a body is not zero, the forces are called unbalanced forces.

Newton's First Law of Motion

According to this law - A body continues to be in a state of rest or in a state of uniform motion along a straight line unless compelled by an external force to change its state of rest or of uniform motion.

Types of Inertia

Inertia can be divided into three types:

  • Inertia of Rest: The tendency of a body to oppose any change in its state of rest is known as inertia of rest. 
  • Inertia of Motion: The tendency of a body to oppose any change in its state of uniform motion is known as inertia of motion.
  • Inertia of Direction: The tendency of a body to oppose any change in its direction of motion is known as inertia of direction.

For Physics formula you can visit Physics Wallah formula Page.

 

Download Concise notes for class 9 physics chapter- Force and Laws of Motion 

Concise notes for class 9 physic Force and Laws of Motion

Concise notes for class 9 physic Force and Laws of Motion

Concise notes for class 9 physic Force and Laws of Motion

Concise notes for class 9 physic Force and Laws of Motion

Talk to Our counsellor