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Acceleration due to Gravity
If gravity is the only force acting on an object, then we find the object will accelerate at a rate of 9.8m/s2 down toward the center of the Earth (this is often rounded to 10m/s2).
Actual Mechanical Advantage
Actual Mechanical Advantage shows how much the machine magnifies an input force taking into consideration the friction in the machine- Divide Force Output by Force Input
Many war machines used in the defense of Syracuse, compound pulley systems, planetarium, water screw (possibly), water organ (possibly), burning mirrors (very unlikely).
the outcome factor; the variable that may change in response to manipulations of the independent variable
the experimental factor that is manipulated; the variable whose effect is being studied
The mechanical efficiency of a machine describes how well the machine converts work input into work output- Work Output/ Work Input(100), higher the percentage the better
The unit of force required to accelerate a mass of one kilogram one meter per second per second
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