Lesson 8

Pressure in gasses

1 / 17

Slide 1: Slide

NaskMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 17 slides, with text slides.

Items in this lesson

Pressure in gasses

Slide 1 - Slide

This lesson

Recap
Pressure in gasses

Slide 2 - Slide

Recap

Slide 3 - Slide

Pressure in liquids — Hydraulics

Slide 4 - Slide

Slide 5 - Slide

0.01 m2

0.4 m2

20 N

800 N

Slide 6 - Slide

What do we know about this system?

Fluids are incompressible

P^{​ 1 ​ ​} = P^{​ 2 ​ ​}

\frac{​ F ^{​ 1 ​ ​} ​ ​}{​ A ^{​ 1 ​ ​} ​} = \frac{​ F ^{​ 2 ​ ​} ​ ​}{​ A ^{​ 2 ​ ​} ​}

Slide 7 - Slide

P^{​ 1 ​ ​} = P^{​ 2 ​ ​}

\frac{​ F ^{​ 1 ​ ​} ​ ​}{​ A ^{​ 1 ​ ​} ​} = \frac{​ F ^{​ 2 ​ ​} ​ ​}{​ A ^{​ 2 ​ ​} ​}

Rearranging the formula!

Write out in words what each symbol stands for

F^{​ 1 ​ ​} \cdot A^{​ 2 ​ ​} = A^{​ 1 ​ ​} \cdot F^{​ 2 ​ ​}

Slide 8 - Slide

Worksheet hydraulics

Slide 9 - Slide

Pressure in gasses

Slide 10 - Slide

Pressure in gasses — Questions

1. What produces pressure in gasses?

2. Why does the pressure inside of a balloon increase when you put more air into it?

3. What is the relationship between the pressure in a gas and the volume of the container it is in?

4. Is the relationship between the pressure in a gas and the volume of the container it is in directly proportional and inversely proportional?

5. What do you call the pressure the air around you exerts on your body?

6. Is the pressure at a mountain top larger or smaller than at sea level? Explain why.

7. Why do mountain climbers have to carry oxygen tanks with them when climbing high mountains?

Link

Slide 11 - Slide

Pressure in gasses — Questions

1. What produces pressure in gasses?

The collisions between the particles in the gas
The particles bumping into each other and their environment.

2. Why does the pressure inside of a balloon increase when you put more air into it?

The particles get pushed closer together. Because of this there are more collisions. This causes the pressure to rise.

Link

Slide 12 - Slide

Pressure in gasses — Questions

3. What is the relationship between the pressure in a gas and the volume of the container it is in?

Increasing the volume of the container causes the pressure to decrease.
Decreasing the volume of the container causes the pressure to increase.

4. Is the relationship between the pressure in a gas and the volume of the container it is in directly proportional and inversely proportional?

It is an inversely proportional relationship

Link

Slide 13 - Slide

Slide 14 - Slide

Pressure in gasses — Questions

5. What do you call the pressure the air around you exerts on your body?

Atmospheric pressure.

6. Is the pressure at a mountain top larger or smaller than at sea level? Explain why.

At a mountain top the pressure in the air is smaller.
This is because gravity's pull is weaker at that height.

7. Why do mountain climbers have to carry oxygen tanks with them when climbing high mountains?

Because the air is less dense at great heights, because of this there is less oxygen in the air.

Link

Slide 15 - Slide

Slide 16 - Slide

Homework

Look at the following Phet simulation — What can you learn about pressure in gasses about it?

Do the ybellowblock exercises of 8.5 and 8.5.

Slide 17 - Slide

Lesson 8

Items in this lesson

Slide 1 - Slide

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Slide 6 - Slide

Slide 7 - Slide

Slide 8 - Slide

Slide 9 - Slide

Slide 10 - Slide

Slide 11 - Slide

Slide 12 - Slide

Slide 13 - Slide

Slide 14 - Slide

Slide 15 - Slide

Slide 16 - Slide

Slide 17 - Slide

More lessons like this

Chapter 2: Culture Wars

Chapter 5: The Rule of Law

Chapter 6: Parliament

Chapter 4: Utopia and Dystopia

Chapter 4: Social Inequalities

Chapter 3: The Haves and the Have Nots

Red Cross Humanity Game - Senior classes vwo

Chapter 3: Democracy