Page 20 - Science Class 6 Times Publication

Chapter
Chapter

2 FORCE AND MOTION

Estimated periods:5

OBJECTIVES

At the end of the lesson, the students will be able to :
Ü dene rest and moti on;

Ü dene force and mention its measurement and unit;

Ü xplain effects of force;
e
Ü dene speed and velocity.

MIND OPENERS
Ü Are you in rest or motion state now?

Ü How do you pull water from well?
Ü What happens when you kick a ball?
Ü How can you stop a moving ball?

Rest and Motion
Have you seen birds ying in the sky, water owing in river, vehicles

running on the road? Here, birds, water and vehicles are changing
their positions. They are said to be in motion state.

When you walk or travel by bus, you change your position continuously.
At this time the surrounding, trees, house, buildings, road, etc remain
in their own positions. They are not changing their positions with
time. Thus, you are in motion state whereas trees, house, buildings
and road are in rest state.

Times' Crucial Science and Environment 16 Book 6