Archimedes Principle
The buoyant force on an object is equal to the weight of the fluid it displaced.
What is Archimedes' Principle?
A machine that takes advantage of the fact that pressure is distributed equally in all directions in a confined fluid.
What is a hydraulic device?
A fast moving fluid has ________ pressure.
What is its lower?
A force exerted by the particles of a fluid over a certain area to the particle's weight and motion.
What is pressure?
The ________ force points upward when an object is fully submerged in a fluid.
What is buoyancy?
An upward force exerted by a fluid on a submerged object.
What is buoyancy?
A change in pressure at any given point in a fluid is transmitted equally and unchanged in all directions throughout the fluid
What is Pascal's Principle
Lift points in the ________ direction.
What is upward?
What is depth?
What happens to the density of the Cartesian diver when water enters the eye dropper?
What is density increases?
Water pressure ________ as depth increases
What is increases
A stopper that slides up and down in a tube
What is a piston?
An example of Bernoulli's Principle in action
What is frisbee, leaf blower ball, car spoiler, diaper genie trick?
Heating a fluid causes its pressure to ________.
What is increase?
A boat will sink if the weight of the water that it displaces is _______ than the weight of the boat itself.
What is less?
A ship floats because __________________________.
Its density is less than water's.
The pressure exerted on the large piston of a hydraulic press is 5 Pa. What is the pressure on the small piston?
What is 5 Pa?
If stuck in a riptide, you should swim __________
What is parallel to the beach? (Or sideways)
As elevation increases, air pressure ___________.
What is decreases?
Why is salt water more dense than fresh water?
What is salt adds density?
Fish use this to regulate their depth.
What is a swim bladder?
Fluid pressure is equal in ___________ ________
What is all directions
An example of fluids moving from areas of higher pressure to areas of lower pressure
What is: a straw, breathing / lungs vacuum cleaner, fan
Decreasing surface area ________ pressure.
What is increases?
Why does a helium balloon float in air?
What is helium has a lower density than air?