Topic 3 - Conservation of Energy Flashcards
1
Q
Law of Conservation
A
Energy cannot be created or
destroyed, only transferred
from one form to another
2
Q
Conservation System
A
In a closed system with no
energy transfers in or out, the total energy is constant
3
Q
Efficiency - Thermal
conductivity
A
Higher thermal conductivity means greater rate of energy transfer
4
Q
Efficiency - Insulation
A
Reduces heat loss to surroundings
5
Q
Efficiency - Lubrication
A
Reduces heat loss due to friction
6
Q
Efficiency Equation
A
Useful Energy Transferred
7
Q
Gravitational
Potential Energy Equation
A
GPE = Mass x
Gravitational Field
Strength x Height