Pressure in Liquids and Gases

• Physics
• Secondary Education
• Age 13

Forces and Motion

Lesson 08. 

Pressure in Liquids and Gases

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Highlights of the Day

• use the particle theory to explain pressure in gases and liquids (qualitatively only)

• Values :  Responsibility and Determination

Think about...

Describe how the particles
are arranged in
a liquid and a gas.

Forces and Motion

Lesson 08a. 

Pressure in Liquids 

less force

more force

The pressure in the water increases with ___________.

1. depth
2. distance
3. gravity

The wall is wider at the bottom of the dam to make the wall stronger where the _______from the water is greatest.

1. force
2. pressure
3. distance

As you go deeper in a liquid, there is more liquid above your position. The weight of this liquid, caused by_____________, pushes on the particles of the liquid.

1. force
2. gravity
3. pressure
4. mass

When the particles of the liquid are pushed, they move with _______ force.

1. less
2. more
3. equal

As the particles in a liquid are moving randomly in all directions, then the pressure in the liquid is ___________ in all directions.

1. less
2. more
3. equal

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Forces and Motion

Lesson 08b. 

Pressure in Gases

QUESTION TIME!

Summary

Self-survey: Rate your level of understanding and participation in this lesson.

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