Forces in Fluids

What term is used to describe force distributed over an area?

• buoyancy

• pressure

• hydraulics

• newtons

Which of the following is NOT an example of fluid?

• Water

• Air

• Oil

• Iron

What is the metric base unit for mass?

• Gram

• Milliliter

• Pound

• Meter

You do an experiment to find the density of a board. After finding the density of the board you cut the board in half and find the density of one of the pieces. How does the density of the piece compare to the density of the full board that you began with?

• the full board will have greater density than the half board

• thehalf board will have a greater density than the full board

• the half board and the full board will have the same density

You have a rock that has a mass of 24 g and a volume of 8 mL. What is the density of this rock?

• 0.33 g/mL

• 32 g/mL

• 3 g/mL

• 192 g/mL

You have piece of sulfur with a density of 2 g/mL. What is the mass of 100 mL of sulfur?

• 200 g

• 50 g

• 0.02 g

• 102 g

If the metal nickel has a density of 8 g/mL, what is the volume of a piece of nickel with a mass of 40 g?

• 320 mL

• 0.2 mL

• 32 mL

• 5mL

You have two pieces of Styrofoam. The first has a volume of 200 mL. The second has a volume of 200 cm³. How does the volume of these two pieces of Styrofoam compare?

• the 200 mL piece is bigger than the 200 cm³ piece.

• the 200 mL piece is smaller than the 200 cm³ piece.

• the 200 mL piece and 200 cm³ piece are the same size.

Which of these explains why there is less pressure on a mountain top than down in a valley?

• on a mountain there is more air above you

• on a mountain there is less air above you

• the air on a mountain is warmer

• the air on a mountain is colder

How does the amount of pressure in a liquid change as you go deeper below the surface of the water?

• pressure increases

• pressure decreases

• pressure does not change