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Questions and Answers
What is the purpose of a barometer?
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?
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?
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?
How does atmospheric pressure vary with altitude?
Which of the following is a property of gases?
Which of the following is a property of gases?
What happens to the can as it cools?
What happens to the can as it cools?
What fills the can when it is sealed and cooled?
What fills the can when it is sealed and cooled?
What is the role of the water vapor in the can experiment?
What is the role of the water vapor in the can experiment?
What causes atmospheric pressure to vary?
What causes atmospheric pressure to vary?
What happens to atmospheric pressure when a 'low' is approaching?
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 sea level?
What is the height of the column of mercury in Torricelli's barometer at an elevation of feet?
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 is the main cause of atmospheric pressure?
What does a decrease in atmospheric pressure often indicate?
What does a decrease in atmospheric pressure often indicate?
Which of the following is a property of gases?
Which of the following is a property of gases?
What causes the can to collapse as it cools?
What causes the can to collapse as it cools?
What happens when the water vapor in the can condenses?
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 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 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 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 is the most obvious property of a gas mentioned in the text?
What fills the can when it is sealed and cooled?
What fills the can when it is sealed and cooled?
What is the atmospheric pressure exerted by?
What is the atmospheric pressure exerted by?
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