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Mechanical Energy - Coggle Diagram
Mechanical Energy
Energy
ability to do work or to cause change
Work
Energy transferred
SI Unit = Joule[J]
Kinetic Energy (KE)
energy of moving object
Factors affecting KE:
Object's mass and speed
formula: KE = 1/2 mv^2
Principle of Conservation
energy cannot be created or destroyed
Formula : KE1 + PE1 = KE2 + PE2
can be converted into another form of energy
total energy in the beginning = total energy in the end
Potential Energy (PE)
Gravitational Potential Energy (GPE)
energy of object that is above the ground
factors affecting GPE
mass and height
formula: GPE = mgh
Elastic Potential Energy (EPE)
energy to deform an elastic object
springs and rubber bands store EPE
Formula: EPE = 1/2 kx^2
k = amount of force needed to stretch by 1m [constant]
x = distance of the stretched string from original pos