Show:
Giant Magnets
Power-up
Safety
Energy Sources
Know-it-alls
100
These are used in junk yards to separate steel items from the rest.
What is an electromagnet?
100
This is the amount of force that electricity contains.
What is voltage?
100
Cords that may be unsafe look like this.
What is frayed, torn, or cut?
100
A battery is made up of two or more of these.
What are electric cells?
100
This is cleaner than the other energy source and saves natural resources better. (Solar energy or coal?)
What is solar energy?
200
This has to be running through a coil wrapped around an iron core to produce a magnet.
What is electricity?
200
This is the amount of voltage in an average home.
What is 120 to 240 volts?
200
Too many plugs or too much electricity going through one circuit causes this.
What is an overloaded circuit?
200
Energy from the sun is called this.
What is solar energy?
200
This is how you can make an electromagnet stronger.
What is using a stronger battery or wrapping more wire around the iron center?
300
This is the source of energy for our classroom electromagnet.
What is a battery?
300
Which needs more voltage, a factory or a home?
What is a factory?
300
These devices cut off the electric flow if there is too much electricity flowing in a circuit.
What are circuit breakers and fuses?
300
This kind of energy comes from a battery.
What is chemical energy?
300
This battery has copper, zinc, and a paste material with chemicals to create energy.
What is a dry cell battery?
400
Doorbells, DVD players, and telephones contain these.
What are electromagnets?
400
Which has more voltage, an electric line or a battery?
What is an electric line?
400
Before replacing a fuse or turning a circuit breaker back on, you should do this.
What is making sure that there will not again be too much electricity flowing through the lines?
400
This device changes energy of motion into electrical energy.
What is a generator?
400
These are three communication devices that use electricity.
What are a telegraph, a telephone (cell phone), a radio, a T.V., a satellite, a computer, etc.?
500
This is a place electromagnets are used to generate a huge amount of electricity.
What is a dam?
500
This changes the voltage in a circuit.
What is a transformer?
500
You should stay away from "High Voltage" areas for this reason.
Why is the power is enough to electricute you?
500
Coal, oil, and natural gas belong to this catagory of energy.
What are fossil fuels?
500
This is how much thicker Hoover Dam is at its base than at its top.
What is 615 feet?