Physics - Form 4 (Manometer and Barometer)

What happens to air pressure as you move upward into the atmosphere?

• increases
• decreases
• stays the same

A device that is used to measure atmospheric pressure is a ___________.

• barometer
• thermometer
• kilometer
• micrometer

Which of the following statements is true?

• particles of a gas never collide
• particles of a gas collide with their container only.
• particles of a gas collide with each other in elastic collisions.
• particles of a gas collide with each other in inelastic collisions.

Explain what would happen to the column of mercury in the barometer as shown if the atmospheric pressure fell.

• As the pressure falls, the column of mercury will drop lower.
• As the pressure falls, the column of mercury will remain unchanged.
• As the pressure falls, the column of mercury will rise higher.
• As the pressure falls, the density of the mercury will increase.

Tags

NGSS.MS-ESS2-5

Air pressure is greater _______.

• at the top of the mountain
• at the bottom of the mountain
• at the center of the mountain

_______ = force/unit area

• force
• pressure
• density
• temperature

Air pressure correlates to temperature, and when it shifts rapidly, it can contribute to:

• Hurricanes

• Tornadoes

• Other extreme weather conditions

• all of the above

Who first demonstrated a stable vacuum?

• Galileo Galilei

• Nicolaus Copernicus

• Al Gore

• Gasparo Berti

What did Blaise Pascal do with the mercury barometer?

• He took it to the top of a mountain

• He placed it in the bottom of a pond

• He added iron to the mercury

• He raised the temperature of the mercury at controlled intervals and recorded the reactions

What happened to mercury barometers in 2007?

• They were banned globally by the United Nations

• Production was stopped in Europe because of mercury's toxicity

• They outsold every other scientific apparatus by a margin so large that experts believe it will never be surpassed

• They were officially nicknamed TorriTubes