Objective Students will be able to explain the difference between renewable energy and non-renewable energy. Students will be able to describe the difference between energy and work.

Energy vs. Work What is the difference?

Energy What is energy? Energy is the ability to do work or cause change Work: the use of force to move an object over a distance W = F x d Energy is measured in a unit called Joule (J)

Classifying Energy Forms of Energy Renewable/Non-renewable Energy Mechanical Thermal Electromagnetic Chemical Nuclear *Sound *Electrical Renewable/Non-renewable Energy How we classify the source of the forms of energy that we use.

Renewable/Non-Renewable Energy Energy obtained from resources that naturally replenish. ***Energy conversions can be traced back primarily to the sun.*** Earth and Moon also allow us to utilize energy. Examples Electromagnetic Wind Water Geothermal Biofuel Non-Renewable Energy obtained from a definite amount of material that comes from the ground in solid, liquid, or gas form. Material is being consumed faster than it is being generated. Examples: Petroleum Coal Natural Gas Nuclear *

Renewable Energy Examples….

Solar Energy

Wind Energy (Mechanical)

Water Power (Mechanical)

Biofuel

Geothermal

Tides

Non-Renewable Energy A nonrenewable resource is a natural resource that cannot be re-made or re-grown at a scale comparable to its consumption Examples: Nuclear * Petroleum Coal Natural Gas

Nuclear Energy Nuclear fission uses uranium to create energy. Nuclear energy is a nonrenewable resource because once the uranium is used, it is gone!

Fossil Fuels (Mechanical) Include: coal, Petroleum, and natural gas are considered nonrenewable because they cannot be replenished in a short period of time.

What is the difference between coal and oil? Coal – rock high in organic carbon, mainly from plant leaf material. Oil – liquid hydrocarbon usually formed when a rock high in organic carbon is subjected to heat and pressure.