Types of Energy

Study Notes

Kinetic Energy: The energy of motion, associated with an object's motion.
Potential Energy: Stored energy, associated with an object's position or state.
Thermal Energy: Energy of heat, associated with the temperature of an object.
Electrical Energy: Energy associated with the movement of charged particles.
Chemical Energy: Energy stored in the bonds of atoms and molecules.
Nuclear Energy: Energy stored in the nucleus of an atom.
Mechanical Energy: The sum of kinetic and potential energy.
Radiant Energy: Energy associated with electromagnetic waves, such as light.

Energy can be converted from one form to another, but it cannot be created or destroyed (Law of Energy Conservation).
Examples of energy conversions:
- Chemical energy to kinetic energy (e.g., combustion of gasoline in a car engine)
- Electrical energy to thermal energy (e.g., a toaster)
- Kinetic energy to potential energy (e.g., a ball rolling up a hill)

Joule (J): The SI unit of energy.
Calorie (cal): A unit of energy, often used to measure the energy content of food.
Kilowatt-hour (kWh): A unit of energy, often used to measure electrical energy consumption.

Renewable Energy Sources:
- Solar energy
- Wind energy
- Hydro energy
- Geothermal energy
Non-Renewable Energy Sources:
- Fossil fuels (coal, oil, natural gas)
- Nuclear energy

Efficiency: The ratio of output energy to input energy.
Energy Loss: Energy that is wasted or converted to a less useful form (e.g., heat).
Energy Conservation: The reduction of energy consumption through efficient use of energy.

Kinetic energy is the energy of motion, associated with an object's motion.
Potential energy is stored energy, associated with an object's position or state.
Thermal energy is the energy of heat, associated with the temperature of an object.
Electrical energy is energy associated with the movement of charged particles.
Chemical energy is energy stored in the bonds of atoms and molecules.
Nuclear energy is energy stored in the nucleus of an atom.
Mechanical energy is the sum of kinetic and potential energy.
Radiant energy is energy associated with electromagnetic waves, such as light.

Energy can be converted from one form to another, but it cannot be created or destroyed (Law of Energy Conservation).
Examples of energy conversions include:
- Chemical energy to kinetic energy (e.g., combustion of gasoline in a car engine)
- Electrical energy to thermal energy (e.g., a toaster)
- Kinetic energy to potential energy (e.g., a ball rolling up a hill)

The Joule (J) is the SI unit of energy.
The Calorie (cal) is a unit of energy, often used to measure the energy content of food.
The Kilowatt-hour (kWh) is a unit of energy, often used to measure electrical energy consumption.

Renewable Energy Sources include:
- Solar energy
- Wind energy
- Hydro energy
- Geothermal energy
Non-Renewable Energy Sources include:
- Fossil fuels (coal, oil, natural gas)
- Nuclear energy

Efficiency is the ratio of output energy to input energy.
Energy Loss is energy that is wasted or converted to a less useful form (e.g., heat).
Energy Conservation is the reduction of energy consumption through efficient use of energy.