Show:
Under Pressure!
Bernoulli, Yo!
Don't Be So Dense
Hydraulics
Buoyancy Isn't Just For Buoys
100
Force divided by area
What is the formula for pressure?
100
This principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases.
What is Bernoulli's Principle?
100
The formula for density.
What is mass divided by volume?
100
The principle that states when force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid.
What is Pascal's Principle?
100
Buoyant force acts in this direction as compared to gravity.
What is the opposite direction?
200
There is MORE pressure as you go this direction in WATER
What is deeper?
200
Fluids naturally flow from areas of this type of pressure to areas of low pressure.
What is high pressure?
200
The density of an object that weighs 10 kg and has a volume of 2 mL.
What is 5 kg/mL?
200
This type of system uses liquids to transmit pressure in a confined fluid.
What is a hydraulic system?
200
This principle states that the buoyant force acting on a submerged object is equal to the weight of the fluid displaced.
What is Archimedes' Principle?
300
There is LESS pressure as you go this direction in the ATMOSPHERE
What is up?
300
How the design of an airplane wing creates lift.
What is the top is curved so that when air hits it, the air is forced to travel faster, creating an area of low pressure which pulls the airplane up?
300
By increasing this variable, you will increase density.
What is mass?
300
In a hydraulic system where 10 N of force is exerted on a piston with a surface area of 5 square centimeters, then the amount of force exerted on the other side of the system where the piston has a surface area of 50 square centimeters is this.
What is 100 N?
300
A solid block of steel will sink in water, but a steel boat of the same mass will do this.
What is float?
400
The units of pressure
What is a pascal?
400
A chimney works because the air blowing across the opening at the top creates an area of this type of pressure.
What is low pressure?
400
Objects that are more dense are more likely to do this in water.
What is sink?
400
In a hydraulic system where pressure, force and area are considered, this is the only variable that remains constant no matter the sizes of the pistons.
What is pressure?
400
If you know the weight of an object that floats, then you know this.
What is the buoyant force?
500
Increasing this variable will cause pressure to increase.
What is force?
500
This is how an atomizer works.
What is squeezing the air out of the straw creates an area of low pressure in the straw, much lower than that of the fluid inside the jar which forces the fluids up the straw?
500
The definition of density.
What is mass per unit volume?
500
These are two uses for hydraulic systems discussed in our textbook.
What are hydraulic lifts and hydraulic brakes?
500
This is how a Cartesian Diver works.
What is in the beginning there is air in the straw making the diver less dense than water, so it floats. Then, when we squeeze the bottle, water is forced into the straw, compressing the water and increasing the mass of the diver. Now the density of the diver is greater than that of the water, so it sinks. We release the bottle, the water flows out of the straw and the diver returns to it's original state of being less dense than the water.