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What Have I Learned About Work and Energy?, Eff = Eoutput/Einput x 100%, Q…
What Have I Learned About Work and Energy?
What have I learned about...
Energy
Energy exists and transforms into many forms:
Types of Energy
Potential Energy
Definition:
Energy stored or conserved in an object
Composed of:
also includes:
3 more items...
Gravitational Potential
1 more item...
Kinetic Energy
is...
Energy generated by motion
Includes:
Thermal
Calculated by:
Ek = Mass x Velocity^2 / 2
Energy Transformation
is the...
Capability of energies to change into other types of energy
Example:
Thermal -> Sound -> Radiant
Law of Conservation of Energy
States that...
Energy cannot be created or destroyed in a closed system
Formula:
Et = Et'
Energy Transfer
There are 3 types of Energy Transfer:
Radiation
Convection
Conduction
is...
The capacity to do work
What have I learned about...
Work
Definition:
The energy transferred to an object as an applied force moves it
Calculation(in Joules):
W = Force x Displacement
Power
Definition:
The amount of energy generated per second
Calculation(in Watts):
P = Work/time
Eff = Eoutput/Einput x 100%
Energy Efficiency
Q = Mass x Specific Heat Capacity x Change in temperature
Heat Tranfer
Qlost + Qgained = 0
Heat Exchange
Q = Lm/Lf
Latent Heat
Defines to:
Energy of state change(solid, liquid, gaseous)
Formula: