AP Physics 2 Fluids

What does viscosity mean?

• How close the particles are together.
• The amount of matter in a substance.
• The thickness or thinness of a substance.
• A tool that measures air pressure.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What do we call the the amount of force exerted on a certain area?

• fluid
• pressure
• buoyant

Which material would have the greatest viscosity at normal temperatures?

• Peanut Butter
• Jelly
• Milk
• Marshmallow Fluff

If an object sinks in a fluid, _____.

• the density of the fluid is greater than the density of the object
• the density of the fluid is less than the density of the object
• the density of the fluid is equal to the density of the object
• density has nothing to do with whether an object sinks or floats, only which state of matter the object is

Which of the following is NOT an example of laminar flow?

• a river moving slowly in a straight line
• smoke rising upward in a smooth column through air
• water flowing evenly from a slight opened faucet
• smoke twisting as it moves upward from a fire

Which of the following properties is NOT a characteristic of an ideal fluid?

• laminar flow
• turbulent flow
• nonviscous
• incompressable

For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following? (assume measurements are taken along the pipe in the direction of fluid flow.

• Pressure increases as the pip diameter increases
• pressure decreases as the pipe diameter increases
• pressure remains constant as the pipe diameter increases
• pressure increases, the decreases as the pipe diameter increases

Which of the following is NOT an example of unites for expressing pressure?

• N/m²
• kg/m²
• atm
• Pa

Which of the following occurs to a person standing near the edge of a railroad track when a high-speed train passes?

• the person tends to be pushed away from the train
• the person tends to be pulled toward the train
• the person tends to be pushed upward into the air
• the person is unaffected by the train

Tags

NGSS.MS-PS2-2

What does the difference between gauge pressure and absolute pressure equal?

• the pressure within the fluid
• the pressure at the surface of the fluid
• the pressure at the bottom of the fluid
• zero