TERM3 Flashcards
(29 cards)
Pivot
to turn or balance on a central
Fulcrum
the point where a lever is supported when it lifts something
Effort
the force applied to a lever in order to move a load
Quick succession
to do things one after the other with little time in between
check page 72 72 1 2 3 lever
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Spur gear
a wheel with teeth that meshes with another gear to change speed or direction
Idler gear
the gear between the driver gear and the driven gear which makes them turn in the same direction
bevel gear
a gear that can change rotational direction through 90 degree
Application
the practical purpose of a machine
Newton
a unit of force
Derailleur
the mechanism that moves a bicycle chain out and up allowing it to shift to gears
effficient
to work well without wasting time or energy
propel
to move something forward
check page 82 83
bicycle
Deadlock
when a disagreement cannot be settled
reprocessing
to treat a waste substance so that it can be used again
Shaft
a passage underground which allows miners to go in and out
Galleries
underground tunnels
slag
the waste material which remains after metal has been taken out of something
smelt
to melt rock in order to remove the metal in it
procurement
to get something
Barriers
rules that limit what people can do
Equity
when all people are treated equally
Spectrum
a wide range
