Science Unit 4 Flashcards
lighter than air vehicles
Zeppelins
Czech word meaning “workers” or “slaves”
Robotnik
the physical form of the devices that makes it usable
design
what the device is supposed to do
function
done when a force acts on an object to make an object move (?= F x d)
work
measure of how the speed of the object is affected by a machine (?= ID/OD)
Speed ratio
the rate of change position of an object in any direction
speed
the fluid in a piston
Output piston
the output force exerted over a distance
Output distance
the syringe which you press the piston in a hydraulic system
Input piston
the length of a sloped surface
input distance
the mechanical advantage of a perfect machine with no loss of useful work
Ideal mechanical advantage
amount of force applied to a given area (?= F/A)
pressure
pressure applied to an enclosed tube transmits an equal amount of force in all direction
Pascel’s law
force a machine applies to an object
output force
force applied to the machine
input force
