Buoyancy

What is buoyant force?

• An upward force exerted by fluids on an object.
• An downward force exerted by fluids on an object.

What does buoyant mean?

• float
• push
• flying, yeah!!!!!!
• sink

What is buoyancy?

• The ability to float

• Degree of compactness of a substance

• The moving of something from its place or position

Who is more likely to sink?

• A heavy person

• A thin person

Tags

NGSS.MS-PS2-4

A thin person is more likely to sink because...

• Muscle is less dense than fat

• Muscle is more dense than fat

A ball full of air floats more than a rock because...

• It is less dense than the rock

• It is more dense than the rock

A block of metal is thrown into a lake. What

happens to the buoyant force as it sinks deeper in the

water?

• Increases

• Decreases

• Stay the same

• increase and then decrease

Displacement means

• to take place
• to replace
• to fill up space 
• to move aside

This is the relationship between area and pressure 

• As area increases, the pressure increases
• As area increases, the pressure decreases.
• As area decreases, the pressure decreases
• They have no effect on each other

If an object displaces less water than its weight, the object will

• float
• accelerate
• create friction
• sink

Tags

NGSS.MS-PS2-2