Gas Pressure Quiz

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What is the purpose of a barometer?

To measure temperature

To measure atmospheric pressure (correct)

To measure humidity

To measure wind speed

How is Torricelli's barometer constructed?

By filling a glass tube with water and inverting it in a dish of water

By filling a glass tube with air and inverting it in a dish of water

By filling a glass tube with liquid mercury and inverting it in a dish of mercury (correct)

By filling a glass tube with liquid mercury and inverting it in a dish of water

What keeps the mercury in the tube of the barometer?

Magnetism

Friction

Pressure exerted by the atmospheric gases (correct)

Gravity

How does atmospheric pressure vary with altitude?

It decreases with increasing altitude Signup and view all the answers

Which of the following is a property of gases?

Gases mix completely with any other gas Signup and view all the answers

What happens to the can as it cools?

The can collapses Signup and view all the answers

What fills the can when it is sealed and cooled?

Liquid water Signup and view all the answers

What is the role of the water vapor in the can experiment?

It increases the pressure inside the can Signup and view all the answers

What causes atmospheric pressure to vary?

Changing weather conditions Signup and view all the answers

What happens to atmospheric pressure when a 'low' is approaching?

It decreases Signup and view all the answers

What is the height of the column of mercury in Torricelli's barometer at sea level?

mm Signup and view all the answers

What is the height of the column of mercury in Torricelli's barometer at an elevation of feet?

mm Signup and view all the answers

What is the main cause of atmospheric pressure?

Gravity Signup and view all the answers

What does a decrease in atmospheric pressure often indicate?

Approaching storm Signup and view all the answers

Which of the following is a property of gases?

Gases uniformly fill any container Signup and view all the answers

What causes the can to collapse as it cools?

The air pressure pushing against the can Signup and view all the answers

What happens when the water vapor in the can condenses?

The gas pressure inside the can decreases Signup and view all the answers

What happens to the air pressure inside the can when it is sealed and cooled?

It decreases Signup and view all the answers

What is the purpose of the experiment shown in Figure 8.1?

To show the effect of atmospheric pressure Signup and view all the answers

What causes a balloon to become firm when it is blown up with air?

The pressure exerted by the air inside Signup and view all the answers

What is the most obvious property of a gas mentioned in the text?

Gases exert pressure on their surroundings Signup and view all the answers

What fills the can when it is sealed and cooled?

Liquid water Signup and view all the answers

What is the atmospheric pressure exerted by?

The gases in the atmosphere Signup and view all the answers

Gas Pressure Quiz

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Questions and Answers

What is the purpose of a barometer?

How is Torricelli's barometer constructed?

What keeps the mercury in the tube of the barometer?

How does atmospheric pressure vary with altitude?

Which of the following is a property of gases?

What happens to the can as it cools?

What fills the can when it is sealed and cooled?

What is the role of the water vapor in the can experiment?

What causes atmospheric pressure to vary?

What happens to atmospheric pressure when a 'low' is approaching?

What is the height of the column of mercury in Torricelli's barometer at sea level?

What is the height of the column of mercury in Torricelli's barometer at an elevation of feet?

What is the main cause of atmospheric pressure?

What does a decrease in atmospheric pressure often indicate?

Which of the following is a property of gases?

What causes the can to collapse as it cools?

What happens when the water vapor in the can condenses?

What happens to the air pressure inside the can when it is sealed and cooled?

What is the purpose of the experiment shown in Figure 8.1?

What causes a balloon to become firm when it is blown up with air?

What is the most obvious property of a gas mentioned in the text?

What fills the can when it is sealed and cooled?

What is the atmospheric pressure exerted by?

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