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Bill Nye-Electricity Name ____________________________________ Period ____ Date ___________________________ Write the letter of the BEST answer in the blank. 1. _____ Electricity is simply a ___ A. flow of electrons B. chemical reaction C. unexplained force 129 D. magnetic force 2. ____ Which word relating to electricity literally means “go around”? A. generator B. electrocute C. circuit D. induction 3. ____ Electricity is very often compared to a ___. A. tornado B. flow of water C. windstorm D. black hole 4. ____ Which of these statements is FALSE? A. It’s better to keep batteries in the refrigerator. C. Warm metal conducts electricity better. B. Your brain used the energy of a 10 watt bulb. D. All electricity is made of the same thing: e- 5. _____ In 1831, Michael Farraday (also a character on “Lost”) noticed that electricity was flowing ___ A. in a coil. B. through his hair. C. in a toaster D. in a light bulb. 6. ____ The hybrid electric car in this program is a mix between ___ and ___. A. electric, solar, methane B. electric, gas C. solar, gas D. electric, nuclear 7. ____ Bill Nye compares electrons to ___. A. sesame seeds B. bb’s D. bees C. bullets 8. ____ A substance that acts neither as a total conductor or insulator can be called a(n) ___. A. deadbeat B. resistor C. generator D. turbine 9. ____ In comparing the flow of electricity to the flow of water, water pressure can be compared to the ___. A. voltage B. amperage C. resistance D. power 10. ___ The number of water molecules that flow by in the hose can be compared to the ____ of electricity. A. voltage B. amperage C. resistance D. power 11. ___ When you take voltage x amperage, you get what measurement? A. work (joules) B. power (watts) C. resistance (ohms) D. mass (kg) 12, ___ A machine that can create/generate electricity is called a ___. A. generator B. power plant C. turbine D. magnet TRUE-FALSE: Please write out the entire word. 13. _____________ Whether it’s from a chemical change in a battery, wires from an outlet, or energy from a solar cell, all electricity is made of the same thing. 14. _____________ If you put two hands in a tank with an electric eel, you could be electrocuted. 15. _____________ When a magnet or coil moves back and forth generating electricity, it’s called direct current. SHORT ANSWER: 16-17. Why aren’t birds standing on a power line electrocuted? 17-18. Name two things that would be different without batteries. 19-20. What was your favorite part of the program? Why? Potential Energy: 1. Gravitational potential (weight x height or mass x gravity x height) 2. Chemical (batteries, food) 3. Elastic (ball bouncing, rubber band stretching) Kinetic Energy (same root word as ‘cinema’) KE = ½ mv2 How does this apply to a roller coaster? Throwing up a ball? At the top of a hill or throw: Before it gets to the bottom: At the very bottom: Why is the first hill in a roller coaster the highest one? Why can’t the roller coaster go up as high as it started again? Ohm’s Law and the Magic Triangle: So, V (voltage) = (it’s like the water pressure; sometimes it’s designated as ‘E’) I (amperage) = (it’s like the number of water molecules going by) R (resistance )= (it’s like banging against the sides of the garden hose)