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.