Definitions
Metal drawn out into a thin flexible thread
What is a wire?
Material of an incandescent bulb filament
What is tungsten?
This type of filament glowed red and burned out quickly.
What is the nichrome filament?
A D battery
1.5 V
Ex. Sunlight, candle
Electricity flows in a loop from the power source (battery) through the appliance (such as a light bulb) back to the power source
What is a complete circuit?
The gas inside a fluorescent bulb
What is mercury gas?
Thomas Edison tried a variety of different substances for his early filament experiments. This one lit for 13 hours.
What is specially treated cotton thread that turned into carbon?
A car battery
12.6 v
An alternative for a washing machine
Ex. washing clothes by hand on a washboard
The flow of electricity (electric kinetic energy)
What is current?
A major by-product of an incandescent bulb besides light
What is heat?
Many devices use electricity to perform different tasks. This particular task is very energy intensive.
What is producing heat?
A regular electric socket
120 v
Alternative to an air-conditioner
Ex. a fan (not electric fan!)
The difference in charge between two points; electric potential energy
What is voltage?
A difference between a regular incandescent and halogen light bulb
The gas within the envelope; glass vs. quartz envelope; heat produced; length of time bulb lasts
This is the average cost of a kWh of electricity in the USA.
What is $0.12?
A clothes dryer electric socket
220 v
Alternative for a watch
Ex. a sundial, hourglass
What is a short circuit?
When electricity flows from a power source without going through an appliance back to the power source; this causes the power source (battery) to heat up
Name three advantages to LED bulbs compared to incandescent, CFL, and halogen bulbs
Lasts about 15 years (no filament to burn out)
Very energy efficient (less heat produced, requires little in the way of power)
No toxic chemicals (such as mercury)
Glass, plastic, cloth, rubber would all result in this when placed in a circuit. What would they be called?
What would be insulators? The bulb would not light.
over 100,000,000 v
Alternative for a computer