Air Pressure and Altitude

Define Air Pressure

• The weight of a column of air pushing down on an area

• The Amount of Mass in a given volume

• The force pushing on an area

• The distance above sea level

Air pressure is measured with a

• thermometer

• hot-air balloon

• satellite

• barometer

As I walk up Mt Everest, the density of air...

• decreases

• increases

Define Pressure

• The weight of a column of air pushing down on an area

• The Amount of Mass in a given volume

• The force pushing on an area

• The distance above sea level

Define Altitude

• The weight of a column of air pushing down on an area

• The Amount of Mass in a given volume

• The force pushing on an area

• The distance above sea level

Why is it hard to breath at high altitudes?

• There is too much oxygen in this location.

• There is a higher density of air molecules.

• There is a low density of air molecules.

• The air pressure is greater than at low altitudes.

If density of air is high, pressure is:

• high

• low

If density of air is low, pressure is:

• high

• low

What happens to air pressure as altitude increases?

• It increases

• It decreases

• It remains constant

• It fluctuates randomly

Which instrument is used to measure air pressure?

• Thermometer

• Barometer

• Anemometer

• Hygrometer