1. Department of Technology Appalachian State University

2. What is Energy?  Ability to do work; a force  QUESTION: What are some examples of sources of energy?

3. Why do we need energy?  Everything: Eat Stay worm Stay cool Work Recreation

4. Forms of Energy  Thermal  Chemical  Electrical  Radiant  Mechanical  Acoustic (Sound)  Nuclear

5. Energy Transfer  Energy transfer devices use an energy input to produce an output. Example: Gas engine Gas engines use chemical energy to produce rotary (mechanical) motion.

6. Renewable vs. Non-renewable

7. Non-Renewable  Energy forms that are not reproduced as fast as we use them. Examples: Fossil Fuels: (Coal, Gas, Oil) Nuclear Question: Why are they helpful?

8. Problems with Non-Renewables  Pollution  Depletion

9. Renewable Energy  Sources of energy that can reproduce as fast as we use them. Examples: Wind Solar Hydro Biomass Question: Why are they helpful?

10. What is Power?  The rate at which work is done or energy is transferred.  QUESTION: How is power measured? Horse Power Watts Decibels

11. Activities Break up into groups and cycle throughout the different activities.  Bike Generator  Personal Horsepower  Micro-Hydro  Sustainability Trailer  Solar Thermal  Recycling