Charges
Math
Current
Magnets
Potpourri
100
The build-up of charges?
What is static.
100
If current is 6 and voltage is 18, what is resistance?
What is 3 ohms.
100
The unbroken path through which electric charges can flow?
What is electric circuit.
100
Streams of electically charged particles flowing at high speeds from the sun?
What is solar wind.
100
What charge does an electron have?
What is negative.
200
How do clothes in a dryer acquire static cling?
What is friction.
200
According to Ohm's Law, what is resistance equal to?
What is voltage divided by current.
200
Transfer of electric current by touching?
What is conduction.
200
Earth's magnetic field can make a magnet out of iron by doing what to the magnetic domains?
What is line them up in the same direction.
200
As light bulbs are strung in a series, what happens to the brightness of the bulbs as electrons travel from bulb to bulb?
What is they get dimmer.
300
What causes charges to move in a circuit?
What is voltage.
300
If 20kw of power are used for an appliance that runs 4 hours, what is the total amount of energy used?
What is 80kw-hours.
300
The parts of the cell that are used to connect an electrochemical cell to a circuit?
What are the terminals.
300
A cluster of atoms that all have magnetic fields lined up in the same way?
What is magnetic domain.
300
What is a disadvantage to using fuses?
What is when a fuse burns out it cannot be used again.
400
What path does an electric current always take?
What is the path of least resistance.
400
If the household voltage is 60 volts, and a current for a light bulb is .5 amps, what is the power?
What is 30 watts.
400
Increasing the resistance, and keeping the voltage constant, does what to the current?
What is it decreases.
400
What does every magnet have two of?
What are magnetic poles.
400
What are the three parts of an atom?
What are proton, neutron and electron.
500
What is the rule for charges attracting and repulsing in electricity and magnets?
What is opposites attract and like repel.
500
What happens to current if resistance decreases, and voltage stays the same?
What is it increases.
500
What is the current formula (hint: rearrange the voltage formula)?
What is voltage divided by resistance.
500
What type of magnets are most magnets?
What is temporary.
500
In a magnetized material, most of the magnetic domains are arranged how?
What is allighned in the same direction.
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