Density Notes

Symbols and Units

Density Symbol :

Density units:

Note-taking Column

Question:

Summary: Include: Will aluminum float or sink in water? Will aluminum float or sink in mercury? Why?

David naturally sinks in water, but just barely. What could David do to float? He cannot swim!

Buoyant Force Notes

Symbols and Units

Buoyant Force Symbol :

Buoyant Force units:

Symbol for mass of

fluid surrounding

object:

Units for mass of fluid

surrounding object:

Note-taking Column

Question:

Summary: Include: Does a floating object rise or sink? The buoyant force is equal to the _____________ of

the displaced fluid? When is the volume of the displaced fluid equal to the volume of the object?

Buoyant Force Problem

Picture: Equation and Substitutions: Part A

Givens:

Part B

Find:

Part C

Summary: Include: When finding the buoyant force, what mass is used? When finding the force of gravity or

weight of the balloon what two masses needed to be added together? Why?

Density Buoyancy Equation Notes

Note-taking Column

Question:

Summary: Include: In order to use the density and buoyancy proportion the object in the fluid must be _____

_________________.

Density Buoyancy Equation Problem

Picture:

Equation/Subs/Solve:

Givens:

Find:

Summary: Include: When given the gravitational force of an object in both the air and another fluid, how do

you find the buoyant force? How can you logically check to see if the density you found for the object makes

sense?

Pressure Notes

Symbols and Units

Pressure Symbol :

Pressure units:

Note-taking Column

Question:

Summary: Include: Why do nails have a small surface area at the end that goes into the piece of wood? Why

is blood pressure taken in your upper arm instead of your calf muscle?

Pressure Problem

Variables and Equations: Diagram:

P =

P0 = g =

= h =

Picture:

Equation/Subs/Solve:

Givens:

Find:

Summary: Include: Using the information above, what is a good reason that one human has ever scuba dived to

a depth greater than 155 meters?

Ideal Fluid & Continuity Equation Notes

(Part 1 of Ideal Fluids and Bernoullis Principle Video)

What is an ideal fluid?

Continuity Equation Derived:

Flow Rate = =

Flow Speed =

Question:

Summary: Include: As the cross sectional area of an enclosed container decreases what will happen to the

flow speed of the fluid moving through the container? What is the difference between flow rate and flow

speed?

Bernoullis Principle Notes

(Part 2 of Ideal Fluids and Bernoullis Principle Video)

Note Taking Column

Question:

Summary: Include: In a tornado why do windows blow out of a house toward the tornado and not in?

Bernoullis Equation Problem

Picture:

Equation/Subs/Solve:

Givens:

Find:

Summary: Include: How did we know to make vT = 0 m/s? Why are P1 and P2 both equal to atmospheric

pressure (101,300 Pa)?

Ideal Gas Law Notes

Symbols and Units

Pressure Symbol :

Volume Symbol:

# of Molecules Symbol:

Boltzmanns Constant

Symbol:

Temperature Symbol:

Note-taking Column

Question:

Summary: Include: Roughly what temperature is high enough for an ideal gas to be considered ideal and what

pressure is low enough for an ideal gas to be considered ideal? What units must temperature be in to use the

ideal gas law equation?

Ideal Gas Law Problem

Picture:

Equation/Subs/Solve:

Givens:

Find:

Summary: Include: What variable must you convert units to a specific unit and what variables simply need to

be consistent, in order to use the ideal gas law? Why do N1 and N2 cancel?