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How do you find pressure?
Force/Area
What is Pascal’s Law?
Pressure is applied to all sides of a closed container when a fluid/gas is pushed through it

Who is Blaise Pascal
He invented the syringe and developed a mechanical calculator
What is a Hydraulic system
Fluid transmitting force in a closed container
How much pressure does the small piston need to move the large piston?
The large piston will move half of the pressure put on the small piston.The small piston can push 4 times more weight if the larger piston has a surface area 4 times bigger. (Notice how the small cylinder had to travel 4 times farther)

What is a Pneumatic system?
Compressed gas (eg. air) transmitting force in a closed container (e.g. your lungs)
What is a valve?
A valve controls the flow of fluid in an enclosed container/pipe system (e.g. a water faucet, Air valve on a bicycle tire, your veins, and your heart)
How does an Internal combustion engine work?
The engine in a car ignites the gasoline by spraying it (converting to a gas), compressing it (to make it more explosive) and igniting it (with a spark plug) to create an explosion the moves the mechanics to make the car run.

What is Charles Law?
If a gas is compressed, its pressure increases but its volume decreases

What is Boyle’s Law?
As the pressure of a gas increases, the temperature of the gas increases
How do you find Density?
D = M/V (Mass divided by volume)
What is Archimedes Principle?
any object submerged—fully or partially—in a fluid (liquid or gas) is buoyed upward by a force equal to the weight of the fluid it displaces

What is atmospheric pressure
It is the weight of a column of air extending from a given point to the top of the atmosphere.

What is Buoyancy?
The upward pressure that water puts on an object
What type of objects float?
If an object has a density less than water (1g/mL) (e.g. wood)
What type of objects sink?
If an object has a density more than water (1 g/mL) (e.g. metal)
When is the buoyancy neutral?
If an object has a density equal to water (1 g/mL) (e.g. plastic)