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1 Answer:
To find pressure, you must know
a. weight and volume.
b. force and area.
c. mass and area.
d. force and mass.
2 Answer:
One reason air pressure increases at lower altitudes is because
a. there are fewer air particles in a given area.
b. there are more air particles in a given area.
c. the air particles have more mass.
d. the air particles have less mass.
3 Answer:
Fluids are
a. liquids, gases, and solids.
b. either liquids or gases.
c. liquids.
d. either solids or gases.
4 Answer:
The brake system on a car is an example of a (an)
a. hydraulic device.
b. simple machine.
c. lever.
d. inclined plane.
5 Answer:
What is the pressure if a force of 200 N is applied over an area of
50 cm2?
a. 4 N/cm2.
b. 0.24 N/cm2.
c. 10,000 N/cm2.
d. 150 N/cm2.

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