Simple Machines Flashcards
(4 cards)
1
Q
Does a 1st class lever have a fulcrum in the middle
A
yes, a 1st class lever has a fulcrum in its center, and the load and effort on the sides
2
Q
What is the formula for mechanical advantage
A
M A = fo/fi, Mechanical advantage = force output over force input
3
Q
What is the 3rd class lever best for
A
Unlike 1st and 2nd class levers, 3rd class does not make the output force more, but instead increases the speed and distancve of load movement
4
Q
What is a speed multiplier
A
Only 3rd class levers are speed multiplers. Speed multiplers increase the out put speed of a load distance
