What is Air Pressure

1) Meteorologists look at the average atmospheric pressure at sea-level and call that _____________________________.

• vertical
• 1 bar
• centibar
• vacuum

2) Why doesn’t air pressure crush an empty soft-drink can as you drive down a mountain?

• elevation
• because it's full
• because of the same pressure outside as inside
• because of weather balloons

3) What is density?

• height above a certain level
• air pressure
• how tightly packed matter is in an object
• volume divided by velocity

5) A ____________________________ is used to measure air pressure.

• mass
• kinetic energy
• barometer
• compass

6) When air pressure is getting lower, what would you expect to see happen to a mercury barometer?

• mercury goes down
• mercury goes up
• it breaks
• nothing

7) ___________________________________ have an electronic sensor and a transmitter attached to a barometer.

• vacuums
• kinetic energy
• weather balloons
• air pressure

8) Today’s modern barometers are ___________________. They use electronic pressure sensors in circuits.

• digital
• inaccurate
• sensitive
• standard

9) A __________________________________ is a space containing almost no matter, not even air.

• digital
• barometer
• weather balloon
• vacuum

10) What is elevation?

• distance between field goal posts
• the height above or below a given level, like sea level
• density
• mass divided by volume

11) Air pressure is caused by the _______________ of air being pulled to Earth.

• pressure
• gravity
• volume
• mass