Show:
Fluids
Pressure
Buoyant Force
Flying
Density
100
Any material that can flow and take shape
What are fluids
100
The amount of force exerted per unit area of a surface
What is pressure
100
The upward force that fluids exert on all matter
What is buoyant force
100
An upward force on an object that moves in a fluid
What is lift
100
Out of water, air, and helium what is the MOST dense?
What is water
200
Name two types of fluids
What are liquid and gas
200
What is the SI unit for pressure?
What is the pascal
200
An object weighs more than the buoyant force
What is the object will sink
200
The forward force produced by a plane's engine
What is thrust
200
What organ allows bony fish to change their density?
What is the swim bladder
300
Fluids can always what?
What is flow
300
Pressure casued by the weight of the atmosphere is?
What is atmospheric pressure
300
An object's weight is equal to the buoyant force
What is the object will float
300
The force that opposes or restricts motion in a fluid
What is drag
300
How do submarine's change their density?
What is the ballast tanks take in water and increase their density
400
A fluid in equilibrium contained in a vessel exerts a pressure of equal intensity in all directions is what principle?
What is Pascal's Principle
400
Why is a tornado like a vacuum?
What is because of the pressure differences
400
An object weighs less than the buoyant force
What is the object will buoy up
400
Where is the fastest speed on an airplane's wing?
What is OVER the wing
400
How can we change an object's overall density?
What is change its shape, change its mass, or change its volume?
500
As the speed of a moving fluid increases, the fluid's pressure decreases is what principle?
What is Bernoulli's Principle
500
What is the relationship between pressure and fluid speed?
What is higher speed less pressure and lower speed higher pressure
500
The principle that states that the buoyant force on an in a fluid is an upward force equal to the weight of the fluid that the object displaces
What is Archimedes' Principle
500
Where is the highest pressure on an airplane's wing?
What is UNDER the wing
500
What is less dense than air?
What is helium