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science

module 8

QuestionAnswer
if speed of an object doubles, what happens to its KE? KE quadruples
Friction causes KE to be converted into... thermal energy
how is work output of a machine related to its work input work output is always less than work input
what is the output force of a machine with a mechanical advantage much larger than 1 the output force is larger than its input force
KE(J)= 1/2 x m x v2 (mass, speed)
PE(J)= m x g x h (mass, hight above the earth, and acceleration due to gravity)
Work(J)= F x D (force, distance)
Power(W)= W/T (Work, Time)
AMA= Output force/Input force
IMA= Input distance/Output distance
Efficiency= Work output/Work input x 100%
Created by: watsonfamily
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