Show:
Buoyancy
Foil Boats
Pressure
100
What is buoyancy?
How well things float.
100
What is a force?
A push or a pull
100
What are the units used to measure pressure in SI and USCS measurement systems?
PSI (pounds/square inch) Pascals(Newtons/ square meter)
200
What is buoyant force?
The upward force extracted by a fluid.
200
What are the SI units used to measure force?
Newtons
200
Explain what would happen to pressure if you increase the force? increase the area?
Pressure increases. Pressure decreases.
300
What is the Archimedes Principle?
The buoyant force is equal to the weight of the displaced fluid.
300
What are the USCS units used to measure force?
Pounds
300
What are pneumatics?
The use of pressurized gas to produce mechanical motion.
400
Explain positive buoyancy.
Buoyant force is greater=float
400
What is negative buoyancy and what object caused this to happen during our experiment?
Buoyant force is less=sink pennies
400
What are hydraulics?
The use of pressurized liquid to produce mechanical motion.
500
Explain Neutral Buoyancy.
The buoyant force and sinking force are equal=stay
500
Explain why the foil boat floats while the same amount of foil squeezed into a ball can sink?
The ball has less volume so the weight is more concentrated which displaces less water and causes the ball to sink.
500
Give an example of each, hydraulics and pneumatics.
Hydraulics: car lift, dump trucks, flight simulators, riviters Pneumatics: brakes, nail guns, dentist drills, buffers