Vocabulary
What is a system?
A group of parts that work together.
Anything you can plug in
electrical energy
What is an energy converter?
takes energy in one form and converts it to another form
What simple system did you build with your group?
fan
True or false. A lightbulb has more light energy output than a LED light.
false, it gives out more thermal energy
What is a function?
What something can do.
motion energy
some examples: music players, radio, electric lamps, electric stoves, electric fans, cars, plants, candles
What were the parts of the simple system?
sun, wires/cables, fan blade, motor, and solar panel
Name at least two forms of energy that you see evidence of in the picture of the Ergstown subway.
light, motion
What is an engineer?
sound that you hear
sound energy
What is the input energy form in a hair dryer?
electrical
What is the output energy of the led bulb?
light
True or false. Installing a new statue would make the most effect on the use of energy in Ergstown.
false
What is energy?
changing of temperature
thermal energy
What is the output energy form in a hair dryer?
motion, thermal
What happened when two buzzers were added to the system?
sound gets weaker, less energy to supply to both buzzers
An electrical stove converts what form of energy into what other form of energy?
electrical energy to thermal energy
What is electrical energy?
the form of energy that is transferred through wires
form of energy that is in food, fuel, and batteries
chemical energy
false
What did the water in pitcher and cups model demonstrate about energy in an electrical system?
Electrical systems have a limited supply of energy. There is not enough energy to supply all the devices.
What is the best solution for the Ergstown Blackouts?
replace older street lights with LED streetlights