# Gas pressure

This lesson looks at the reasons for there being pressure in a gas and the factors that can affect this.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.A flat section on a heating or cooling curve graph shows...

1/6

Q2.What is the melting point of ice?

2/6

Q3.In a chemical reaction, if the mass of one reactant is 10g and the mass of the other reactant is 15g, what must the overall mass of the products be?

3/6

Q4.What is meant by the term 'condensing'?

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Q5.Substance X has a melting point of 30°C and a boiling point of 75°C. In which state of matter will it be at room temperature?

5/6

Q6.Substance A has a melting point of 15°C. Substance B has a melting point of -8°C. Substance C has a melting point of 45°C. Which of these substances will remain a solid at room temperature?

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Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.A flat section on a heating or cooling curve graph shows...

1/6

Q2.What is the melting point of ice?

2/6

Q3.In a chemical reaction, if the mass of one reactant is 10g and the mass of the other reactant is 15g, what must the overall mass of the products be?

3/6

Q4.What is meant by the term 'condensing'?

4/6

Q5.Substance X has a melting point of 30°C and a boiling point of 75°C. In which state of matter will it be at room temperature?

5/6

Q6.Substance A has a melting point of 15°C. Substance B has a melting point of -8°C. Substance C has a melting point of 45°C. Which of these substances will remain a solid at room temperature?

6/6

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Gas Pressure

This quiz will test your knowledge from this lesson and your prior learning.

Q1.Which state of matter would be described as having a fixed shape, high density and is not compressible?

1/6

Q2.What causes pressure in a contained gas?

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Q3.What effect does INCREASING volume have on the pressure exerted by a gas?

3/6

Q4.What effect does INCREASING temperature have on the pressure exerted by a gas?

4/6

Q5.What effect does INCREASING altitude have on gas pressure?

5/6

Q6.Which of the following is NOT a change of state?

6/6

Quiz:

# Gas Pressure

This quiz will test your knowledge from this lesson and your prior learning.

Q1.Which state of matter would be described as having a fixed shape, high density and is not compressible?

1/6

Q2.What causes pressure in a contained gas?

2/6

Q3.What effect does INCREASING volume have on the pressure exerted by a gas?

3/6

Q4.What effect does INCREASING temperature have on the pressure exerted by a gas?

4/6

Q5.What effect does INCREASING altitude have on gas pressure?

5/6

Q6.Which of the following is NOT a change of state?

6/6

# Lesson summary: Gas pressure

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga