Oct. 4 ,2010 Forms of Energy.

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Presentation transcript:

Oct. 4 ,2010 Forms of Energy

Starters 10/4/10 (3rd box) Describe the shoes you are wearing today. Use 5 Quantitative and 5 Qualitative observations. This can be a list not a sentence.

What is Energy? http://player.discoveryeducation.com/index.cfm?guidassetid=ed3c0bad-dffc-4530-80bb-198aad55b4b9# Discovery video, Forms of energy Discoveryeducation.com Middle school science Energy sources Human use of energy Watch Different types of energy 6:01

Two Energy Forms Potential Kinetic Potential energy stored and the energy of position. Potential means capable of being or becoming or possible. Kinetic Kinetic energy is motion, the motion of waves, electrons, atoms, molecules and substances. Kinetic means adjective 1.pertaining to motion.2.caused by motion.3.characterized by movement: Running and dancing are kinetic activities.

Types of Potential Energy Chemical Nuclear Stored Mechanical Gravitational

Chemical Energy is Potential Energy Chemical Energy: Stored in the bonds of atoms and molecules. Examples: Biomass

Chemical Energy Examples Continued Natural Gas Petroleum

Chemical Energy Examples Continued Propane Coal

Nuclear Energy is Potential Energy Nuclear energy is the energy stored in the nucleus of an atom – the energy that holds the nucleus together. Examples are Uranium Atom

Nuclear Fission – splitting the atom Fusion – The Sun is a process in which two nuclei join, forming a larger nucleus and releasing energy. Nuclear Fission – splitting the atom

Stored Mechanical Energy is Potential Energy Stored Mechanical Energy is energy stored in objects by the application of a force. Examples are springs and Rubber bands

Gravitational Energy is Potential Energy Gravitational Energy is the energy of Place or position. Examples are Water behind a Dam, when released it becomes energy of motion.

Types of Kinetic Energy (Motion) Radiant Thermal Motion Sound Electrical Energy

Radiant Energy is Kinetic Energy Electromagnetic energy that travels in transverse waves. Solar energy, x-rays & gamma rays are examples.

Thermal Energy is Kinetic Energy Thermal energy or heat is the internal energy in substances – the vibration and movement of atoms and molecules within substances. Geysers are an example.

One Benefit of Geothermal Energy

Motion is Kinetic Energy The movement of objects or substances from one place to another. Wind and hydropower are two examples.

Sound is Kinetic Energy Sound is the movement of energy through substances in longitudinal waves.

Electrical Energy is Kinetic Energy Electrical energy is the movement of electrons. Lightning and electricity.

Two Categories of Energy POTENTIAL The Possibilities… KINETIC Motion