Simple Machines

Question 1

Does a 1st class lever have a fulcrum in the middle

Answer 1

yes, a 1st class lever has a fulcrum in its center, and the load and effort on the sides

Question 2

What is the formula for mechanical advantage

Answer 2

M A = fo/fi, Mechanical advantage = force output over force input

Question 3

What is the 3rd class lever best for

Answer 3

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

Question 4

What is a speed multiplier

Answer 4

Only 3rd class levers are speed multiplers. Speed multiplers increase the out put speed of a load distance