Physics
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Energy
Ability to perform any task
System
The object and environment in which an energy reaction starts
Surrounding
Everything else other than the system
Open system
Energy and matter can be exchanged between system and surrounding
Closed system
Only energy can be exchanged between system and surrounding
Isolated system
Energy and matter cannot be exchanged
Kinetic molecular theory
Particles are always in motion
Kinetic energy
The energy of an object that is in motion
Potential energy
Stored energy that has the potential to be transformed into another form of energy.
Mechanical kinetic energy
The energy when an object is moving
Radiant energy
energy sent out in the form of electromagnetic waves Heat, light, and radio waves are forms of radiant energy
Sound energy
Energy as a wave of vibration moving through matter
Electrical kinetic energy
Energy of charged particles moving through a conductor
Thermal energy
Energy of moving particles transferred by heat
How to measure thermal kinetic energy?
Temperature, thermal energy, heat
How can heat be transferred?
Conduction, convection, radiation
The equation of calculating mechanical kinetic energy
Ek=1/2 * M * v^2, Ek=kinetic energy, m=mass, v=velocity (m/s)
Chemical potential energy
energy stored in chemical bonds
Elastic potential energy
Energy stored in bent, compressed or stretched objects
Gravitational potential energy
Energy stored in objects becasue of it’s position from a reference point
Nuclear energy
Energy stored in the nucleus of atom
Electrical potential energy
energy stored when charged particles are seperated
Magnetic potential energy
Energy stored when magnetic poles are forced together or forced apart
Equation of gravitational potential energy
Eg=mg*H, m=mass, g=9.8, h=height