Forces in Fluids

The amount of water pressure that you experience in a pool depends on

• your buoyancy

• the size of the pool

• the volume of water

• how deep you are in the water

The buoyant force acting on an object is equal to

• the object's mass

• the object's volume

• the mass of the fluid displaced by the object

• the weight of the fluid displaced by the object

A partially submerged object floats when

• the object's weight is equal to the buoyant force

• the object's mass is equal to the buoyant force

• the object's weight is greater than the buoyant force

• the buoyant force is downward

Archimedes' Principle states____

• the buoyant force of an object is equal to the weight of the fluid that it displaces

• when the speed of a fluid increases, the pressure exerted by the fluid decreases

• pressure applied to a fluid is transmitted unchanged throughout the fluid

• the buoyant force of an object is greater than the weight of the fluid it displaces

A fluid is a substance that can easily

• freeze

• thaw

• flow

• break

Tags

NGSS.MS-ESS2-4

Fluids are made up of many

• particles

• sizes

• beads

• materials

Tags

NGSS.MS-PS1-4

The force that particles in a fluid exert over an area is called

• pressure

• density

• gravity

• buoyancy

Fluids move from areas of _____ pressure to areas of _____ pressure.

• high, low

• low, high

• static, high

• static, low

Tags

NGSS.MS-ESS2-6

The amount of mass per unit of volume

• density

• mass

• weight

• pressure

The density of a rock, compared to the density of water, is:

• less

• equal

• greater

• the same