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Pressure
Floating & Sinking
Pascal's Principle
Bernoulli's Principle
More to Know
100
This is the SI unit for pressure.
What is Pa (pascal) or N/m`2?
100
Air pressure is __________ at higher elevations.
What is less?
100
When pressure is applied to a confined fluid, the increase in pressure is transmitted ____________ to all parts of the fluid.
What is equally?
100
Bernoulli's Principle explains why this moves up a chimney.
What is smoke?
100
The density of an object would change by changing the objects mass or __________.
What is volume?
200
This is how pressure is calculated.
What is force divided by area?
200
An object under water feels lighter than it does in air because of this.
What is buoyancy?
200
A device that increases force that works because of Pascal's principle, such as the braking system of a car, is called this.
What is a hydraulic system?
200
The faster moving air above an airplane wing causes the plain to do this.
What is increase in elevation (rise)?
200
The density of a substance is its _______ per unit volume.
What is mass?
300
The outward pressure exerted by a fluid decreases as the speed of the fluid does this.
What is increases?
300
If an object that is dropped into a liquid sinks to the bottom, then it is __________ than the liquid.
What is more dense?
300
The buoyant force can be measured by how much of this it displaces.
What is water (liquid)?
300
if you blow a stream of air between two balloons that are next to each other, the balloons will do this.
What is move toward each other?
300
This is a substance whose shape can easily change.
What is a liquid?
400
Fluids exert pressure because they are made up of these tiny things that exert forces.
What are moving molecules?
400
Water pressure does this as depth increases.
What is increases?
400
This is a classic science experiment that explains buoyancy. We made one in a water bottle.
What is a Cartesian diver?
400
This happened to the piece of paper that we held by the corners and blew at.
What is "it rose/went up"?
400
If the area of piston 1 is 10 m^2 and piston 2 is 30 m^2, the force transferred to piston 2 does this.
What is triples?
500
You can measure atmospheric pressure with this instrument.
What is a barometer?
500
The buoyant force always acts in this direction.
What is upward?
500
Force=10N, area Piston 1= 10m^2, area Piston 2= 30m^2. The pressure on each piston is this.
What is equal?
500
A perfume atomizer does this to the pressure at the top of the bottom, allowing the liquid to rise.
What is lowers?
500
This principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.
What is Archimedes' principle?