Buoyancy and Pressure

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

How does the diameter of a column (depth) of water affect the pressure at the bottom of the column?

• No effect
• The pressure decreases
• The pressure increases
• It depend upon the length of the diameter.

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

• float
• accelerate
• create friction
• sink

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

• float
• accelerate
• create friction
• sink

The weight of the water displaced equals the upward force of water on an object

• Pressure
• Inertia
• Archimedes' Principle
• The Law of Water

Pressure =

• force/volume
• volume/area
• mass/volume
• force/area

The buoyant force on an object equals 50 N. What is the weight of the displaced water?

• 50 N

• 50 lbs

• 50 N/9.8 m/sec²

• not enough information given

The independent variable of our pressure lab was

• pressure
• amount of water
• beaker material
• beaker diameter

The dependent variable of the pressure lab was 

• beaker size 
• diameter 
• pressure
• beaker area