english project
DESCRIPTION
TRANSCRIPT
Why ?
- the air is heated
-it extends
-Molecules move far away from each other
- Some air molecules escape
WE PUT THE BURNING PAPER INTO THE BOTTLE
WHEN THE FLAME GOES OUT
- the air cools down
- Molecules move closer together
- A partial vacuum is created
P inside < Poutside
The higher pressure of the air outside the bottle pushes the egg into the bottle.
Is it possible to get the egg out?Is it possible to get the egg out?
If we blow air into the bottle around the egg…
P inside > P oustside
The egg goes out
1- The egg does not move1- The egg does not move
There is a balance of forces exercised on the egg
2- The egg falls in the glass2- The egg falls in the glass
The only force being exerted on the egg is gravity The egg is in free fall
Thanks for your attentionThanks for your attention