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Energy

Mechanical Energy

QuestionAnswer
Joule The unit of measurement of energy 1 Joule = 1N*m
Calorie The unit of measurement of chemically stored energy 1 calorie = 4.184J
Watt The unit of measurement of Power 1Watt,W = 1Joule/1second
Power Work done over a given time period. Equation- P=W/t P - power (Unit = Watts, W) W - work (in joules) t - time (in seconds)
Work Force applied for a distance *Work can give an object energy OR take energy away from an object. Equation - W=F*d W - Work (Measured in Joules) F - force (in Newtons) d - distance (in meters)
Energy An object's ability to do work *All energy is measured in Joules
Mechanical Energy The total amount of Potential and Kinetic energy that an object has. Mechanical Energy = GPE + KE
Gravitational Potential Energy An object's energy due to the distance, or height, between itself and a surface. GPE=mgh GPE= Gravitational Potential Energy m= mass (in kg) g= gravity (9.8m/s/s *No negative, energy is scalar) h= height/distance in Y-axis (in meters)
Chemical Potential Energy An object's energy due to chemical bonding. *Food, gas, oil are all examples.
Elastic Potential Energy Energy stored due to the stretching or compressing of a material such as a spring, rubber band, or other elastic material. Energy is created by the distance compressed or stretched.
Kinetic Energy An object's energy due to its velocity! KE=1/2mv^2 KE=Kinetic Energy m - mass (in kg) v - velocity (in m/s) Unit - Joules
Created by: becook87
 

 



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