Lesson 2 - Introduction to Forms of Energy
6 Types of Potential Energy
1) Gravitational potential energy 2) Strain potential energy 3) Electrical potential energy 4) Chemical potential energy
3 Energy of Motions
1) Mechanical Energy of Motion 2) Thermal Energy 3) Sound Energy
Strain Potential Energy
= stretch or compressed energy because it has the potential to move
Gravitational Potential Energy
An object raised above the Earth and released --> gravitational attraction between that object and the Earth caused the object to fall to the ground = the raised object has gravitational potential energy
Sound Energy
Atoms and molecules vibrate in an organized manner --> may travel as wave _ transmit through solid, liquid, or gas _ our brain can interpret this energy
Chemical Energy --> Electrical Energy
Batteries
Magnetic Energy
Charges moving within some types of materials produce magnetic forces _ closely related to electrical energy
What type of energy is radiant energy?
Electromagnetic energy
Chemical Potential Energy
Energy exists because atoms and molecules can take in or give off energy when their chemical bonds are formed or broken
Nuclear Energy
Energy is given off or taken in by atomic nuclei _ radioactive _ undergo nuclear changes
Thermal Energy
Energy of motion occurs within a object as its atoms and molecules vibrate randomly _ unorganized energy of motion of vibrating objects too small to see _ faster atoms and molecules --> higher energy
Mechanical Energy of Motion
Energy of moving objects = kinetic energy
Chemical Energy --> Radiant Energy
Fireflies
Which kind of energy is organized motion energy?
Sound energy
3 Forms of Electromagnetic Energy
1) Electrical energy 2) Magnetic energy 3) Radiant energy
Radiant Energy
Result from vibration of electric charges = waves of electromagnetic energy
Electrical Energy
Results from the forces between charged particles _ exist both when the particles at rest or in motion _ closely related to magnetic energy
Which kind of energy is unorganized motion energy?
Thermal energy
Electrical Potential Energy
This energy is stored when positive and negative electric charges are separated _ the amount of stored energy depends on the number of separated charges and the distance they are separated
Chemical Energy --> Thermal Energy
_ Burning natural gases _ Hot pack
Thermal Energy --> Mechanical Energy of Motion
_ Hot air balloons _ Radiometer _ Thermostats _ Gasoline fueling a car
Thermal Energy --> Radiant Energy
_ Mantle lamp
Nuclear Energy --> Electrical Energy
_ Solar panels _ Some smoke detector
Example of Chemical Potential Energy
_ batteries _ fireflies _ food
Examples of Electrical Potential Energy
_ capacitors _ defibrillators
Examples of Mechanical Motion
_ car moving down the road _ ball thrown through the air
Example of Thermal Energy
_ rubbing hands together
Examples of Radiant Energy
_ sun _ radiowave, microwave, lightwave, etc.