Physical science chapter 7

Air is considered a fluid in physics.

• True

• False

What is pressure?

• The upward force that fluids exert on all matter.

• the amount of force on a given area

• the resistance of a fluid to motion

What is the pressure exerted by a book if it has an area of 10m² and a force of 20?

• 10

• 200

• 1/2

What is pressure measured in?

• Newton

• Cubic meters

• Pascals

What is atmospheric pressure?

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Atmospheric pressure decreases as you move closer to sea level.

• True

• False

Water pressure is affected by

• the amount of water

• how deep you go within the water

• the state of the water - whether it is a liquid or solid.

How does a fluid flow?

• From high pressure areas to low areas

• From low pressure areas to high areas

• From east to west only

• From areas of low density to areas of high density

What is buoyant force?

• amount of force exerted on a given area

• the upward force that fluids exerts on all matter

• the amount of density in an object

The statement below is what principle?

"The buoyant force on an object in a fluid is an upward force equal to the weight of the fluid that the object takes the place of."

• Archimedes

• Bernoulli's

• Pascal's