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When you exhale, what happens in the lungs?
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
Which statement best explains why air bubbles rise to the surface in a pond?
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
Where is atmospheric pressure greatest?
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
Which of the following would NOT affect the level at which a canoe floats in a body of water?
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
Fluid pressure is exerted evenly in all directions, which explains why
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
Why would a 1 cubic centimeter piece of balsa wood be more buoyant than a 1 cubic centimeter piece of oak?
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
If a fluid flows from area A to area B, then area B must be an area of lower
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
What is the equation for pressure?
air moves from high pressure (in the lungs) to low pressure (outside)
pressure
at the ocean
Air is about 1,000 times less dense than water
Oak is more dense
pressure = force/area
bubbles are round
depth of the water
Check it!