forces - levers and gears Flashcards
1
Q
what are levers?
A
force multipliers
2
Q
what does a lever allow?
A
to lift a heavy object by applying a relatively small amount of force
3
Q
what do gears do?
A
transmit turning effect of a force
4
Q
what does the turning effect in gears depend on?
A
the distance between the edge of the gear and the centre
5
Q
How many times does gear A spin when gear B spins once?
A
twice meaning that the work done by the two gears is the same
6
Q
what happens to turning effect from gear A to gear B?
A
it has been doubled
