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2 cards from this section. Quick, good the night before a test.
What is air pressure?
Think about what air does to objects around us.
Name the SI unit for air pressure.
It starts with 'P' and is named after a physicist.
What is the SI unit of air pressure?
It starts with a 'P' and is linked to a famous physicist.
True or False: Air pressure increases with altitude.
Consider what happens when you climb a tall mountain.
Given the air density at sea level is 1.225 kg/m³, calculate the air pressure at an altitude of 4000 meters.
Remember to use the air density provided and apply it into the formula.
If a mercury barometer shows 760 mm (0.76 meters) of mercury, what is the air pressure in Pascals? (Density of mercury = 13600 kg/m³)
Plug in the values into the formula and calculate as you did before.
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