Simple machines Flashcards
Input force
force you apply to the simple machine
output force
force that is applied to the object
work
force x distance
effort
describes the input force
mechanical advantage
another word for leverage
fulcrum
the pivot for a lever
A higher angle will do what to the input force?
increase because you would need more effort
What do you do to the fulcrum to make lifting an object take less effort
move the fulcrum closer to the load
What levers have bigger mechanical advantages
ones where the fulcrum is closer to the load.
Whats the formula for mechanical advantage
output force/ input force
What is the easiest way to increase the MA of a a ramp
make the distance longer
Why don’t you want to change the height of a ramp when you change the length
it would affect the work and make the mechanical advantage not go anywhere
How would a short height ramp affect the amount of work you have to do
It would make you do less work
How would a tall height ramp affect the amount of work you have to do
It would make you do more work
a mechanical advantage greater than 1 means
work is less/easier
