Mrs. Vandenbos' - Forces and Fluids Review

What property do all fluids share?

• the ability to melt

• the ability to change shape

• the ability to form crystals

Snowshoes enable a person to walk on deep snow because the snowshoes

• decrease the person's weight on the snow

• increase the area over which the person's weight is distributed

• increase the pressure on the snow

• increase the buoyancy of the person

A unit of pressure is called a

• bernoulli

• pascal

• pound

• meter

Air pressure decreases as

• velocity increases

• elevation increases

• acceleration decreases

• gravity increases

Water pressure increases as

• depth increases

• gravity decreases

• force decreases

• acceleration increases

If fluid flows from area A to B, then area A must be an area of greater…

• Temperature

• Mass

• Volume

• Pressure

Materials that can flow and take the shape of their containers include…

• Both gases & liquids

• Liquids

• Gases

• Neither gases nor liquid

In which direction is fluid pressure directed?

• Up

• Down

• Sideways

• In all directions

A helium-filled balloon will float in air because…

• There is more air than helium

• Helium is less dense than air

• Helium is as dense as air

• Helium is more dense than air

An object weighing 30 N displaces a volume of water with a weight 20 N. What will the object do?

• It will sink

• It will float

• It will fly

• None of these answers