Warm Up 1. Turn in your Fracking Debate worksheet and writing assignment to the basket. 2. List 2 things that you learned during the debates that you didn’t know before we started. Time’s Up!
Daily Outline Fracking debate super final! Burning stuff! Nuclear energy
Nuclear Energy (Uranium)
Nuclear Fusion Combining 2 atoms Some mass changed into energy Much more energy than fission Requirements High speed collisions High temperatures Occurs naturally Sun/stars Limits to use High temperatures No container Requires lots of energy Enormous potential but not yet realistic
Warm Up 1. What’s the difference between nuclear fusion and nuclear fission? 2. What are 3 things you know about solar energy? Time’s Up!
Nuclear Fission 1 atom to 2 Chain reaction Chain reaction Where? Reactors Power plants Submarines Aircraft carriers Satellites Generates electricity Creates nuclear waste
Nuclear Fission Advantages (Pros) Disadvantages (Cons)
Solar Energy
Solar Where? Passive Greenhouses South-facing windows Absorbing materials Solar heat power plants
Photovoltaics (active solar) Movement of electrons Where? Buildings Farms Space Schools Cost
Photovoltaics – Active Solar Advantages Disadvantages
Wind Energy
Wind What is wind? Indirect sunlight energy Uneven heating of Earth’s surface = air movement
Wind How is it used? Wind turbines Spin blades Turn turbine Spin coil in a magnet/generator
Wind Where is it used? Individually Farms Water Electricity
Wind Designs
Wind Advantages Disadvantages
Windmill Blade Design Challenge! Your team will research and build a set of windmill blades. The team who’s blades lift the most washers wins! Things to consider: Number of blades Shape of blades Length of blades Angle (pitch) of blades Spacing from attachment Homework: Create 2 initial designs for you wind turbine.
Windmill Blade Design Challenge! Today you will… Build your turbine Test your turbine Make modifications Re-test Make modifications Re-test You have all class to test and modify. You must test at least three times and modify at least twice, but if you have extra time feel free to continue modifying and testing!!