Newton's Second Law Of Motion
Chapter Name : Laws Of Motion |
Sub Topic Code : 101_11_05_05_01 |
Topic Name : Newton's Second Law Of Motion |
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Sub Topic Name : Newton's Second Law Of Motion |
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Introduction
Second law of motion comes into existence where acceleration of the body is non zero or net external force is there.
Pre-Requisites:
Knowledge about inertia, motion and force.
Activity:
Find out why a fielder lowers his hands while catching the ball.
Real Life Question:
Why a wicket keeper wears gloves while standing behind the wicket?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Momentum | A physical quantity which is equal to the product of mass and velocity of the object. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| ball | Try catching the ball bounced back from the wall. repeat this with greater force. |
Real life uses :
To calculate the force exerted by any body,
Places to visit :
Your home, school lab or wherever you want.
Practical examples around us
| Examples | Explainations |
|---|---|
| Everything around us | Everything around us is based on the newton's laws of motion. |
What you learn in Theory:
The rate of change of momentum of a body is directly proportional to the applied force and takes place in the direction in which the force acts.
What you learn in Practice:
Force is proportional to the product of mass and acceleration. When force is zero, acceleration is zero. This is as according to the first law of motion.