APP2 Final Review Fluids

How do you Calculate Pressure

• Force(N)/Area(m²)

• Force(kg)/Area(mi²)

• Area(m²)/Force(N)

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

• The design of this structure is stronger.

• Water pressure increases with depth.

• The cost of construction is lower.

• Water pressure acts uniformly in all directions.

Tags

NGSS.MS-ETS1-1

What is pressure?

• The amount of force exerted on a surface

• The surface area of an object

• The weight of an object

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

An object will float on water if it is

• less dense than water.

• more dense than water.

• the same density as water.

What pressure does a 4000N horse exert on the ground if each foot is 10cm²? (Remember to CONVERT the cm² to m²)

• 4000 N/m²
• 10000 N/m²
• 4000000 N/m²
• 1000000 N/m²

A fluid can be...

• a gas
• a liquid
• a liquid or a gas
• a solid

Tags

NGSS.MS-PS1-4

Buoyancy is the tendency for objects to float in a fluid. Buoyancy pushes the opposite direction of...

• waves push.
• magnetic pull.
• the wind.
• gravity's pull

Car brakes and car jacks are examples of

• hydraulic systems
• archimedes' principle
• atmospheric pressure
• buoyancy

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