AP Physics 2 Fluids

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

What factors affect the gauge pressure within a fluid?

• fluid density, depth, free-fall acceleration
• fluid volume, depth, free-fall acceleration
• fluid mass, depth, free-fall acceleration
• fluid weight, depth, free fall acceleration

For incompressible fluids, density changes little with changes in what?

• depth
• temperature
• pressure
• free-fall acceleration

Why does an ideal fluid move faster through a pipe with decreasing diameter?

• the pressure within the fluid increases
• the pressure within the fluid decreases
• the pipe exerts more pressure on the fluid
• the fluid moves downhill

The density of water is ____ g/cm³.

• 1
• 1000
• 100
• 10