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A Force Can Change The State Of Motion
Chapter Name : Force And Pressure
Sub Topic Code : 101_08_11_04_01
Topic Name : A Force Can Change The State Of Motion
Sub Topic Name : A Force Can Change The State Of Motion
Introduction

What do you mean by state of motion?

Pre-Requisites:

Introduction to Forces

Activity:

In the game of hockey, the player hits the ball coming straight to him in a cross direction for his team-mate standing at some angle.

Real Life Question:

How do you change the speed and direction in which a football moves?

Key Words / FlashCards
Key Words Definitions (pref. in our own words)
State of motion Describes the speed as well as the direction with which the object moves
Learning aids / Gadgets
Gadgets How it can be used
Football Demonstration
Real life uses :

Cycling, riding motor bikes, cars, buses etc

Places to visit :

Watch any football, hockey or cricket matches to see the the way the force is applied and how the speed and direction of ball changes.

Practical examples around us
Examples Explainations
Bicycle You peddle faster to go faster and use brakes to stop or slow down. The handle is rotated when you have to turn.
What you learn in Theory:

Forces can change the state of motion of an object i.e. change the speed or direction or both.

What you learn in Practice:

How much and where to apply the force in everyday experiences to obtain a required state of motion.

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