First Law Of Motion
Chapter Name : Force And Laws Of Motion |
Sub Topic Code : 101_09_09_02_01 |
Topic Name : First Law Of Motion |
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Sub Topic Name : First Law Of Motion |
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Introduction
When an unbalanced force acts on object, it changes its state of rest ( like the table) or of uniform motion (like the conveyor belt). So, if they continue to be in same state, then there is no force or a balanced force acting on it.
Pre-Requisites:
Forces, Motion, Equations of Motion
Activity:
Place the small card on top of a glass. • Now place a small coin on top of the card. • From the side flick the card off of the glass. Make sure that the card is flicked parallel to the table • The result: the card moves in the direction of the “push” and the coin falls into the glass.
Real Life Question:
Consider a table at rest, and a conveyor belt moving with constant velocity on a straight. what do you think are the forces acting on them?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Inertia | An tendency for an object remain unchanged, continue moving if its moving, or at continue at rest if it as rest |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
Getting ketchup out of a bottle, you open it, turn it upside down and accelerate the bottle, and let the inertia bring it out. Many similar applications are found in industries too.
Places to visit :
Children's Museum- Exhibits on Newton's work
Practical examples around us
| Examples | Explainations |
|---|---|
| If a moving car suddenly stops, all the passengers move forward | Example of Newton's first law |
What you learn in Theory:
Newton's First Law, also called the law of Inertia
What you learn in Practice:
Examples of the law in use in day to day life