How many kilowatt hours are used by a pool pump that uses 50,000 watts of power over 6 hours?
300 kWhr
100
What are the small particles that make up matter?
Atoms
100
What are the two types of electrical currents?
AC (alternating current) and DC (direct current)
100
What are the three parts of a battery?
Cathode, Anode, Electrolyte
200
What unit is used to measure current?
Amperes or amps
200
What are the two most common units of measure for power?
Watts and Kilowatts
200
Why are protons and electrons attracted to each other?
Because protons have a positive charge and electrons have a negative charge.
200
What are the two types of electrical circuits?
series and parallel
200
What is the nickname for the electric chair in Arkansas, Connecticut, Florida, Georgia, Illinois, Kentucky, Nebraska, New York, Ohio, Oklahoma, South Carolina, Texas, Virginia, and West Virginia?
Old Sparky
300
What unit is used to measure resistance?
Ohms
300
What are the two most common units of measure for electrical energy?
Joules and kilowatt hours
300
What do we call materials that do not conduct electricity?
Insulators
300
A string of lights wired together in a series has a burned-out bulb. Why do all of the lights go out?
The circuit is broken!
300
How many Gigawatts of power did the flux capacitor require to send Marty McFly back to 1985?
1.21
400
What is the voltage in a circuit if the current is 20 amps and the resistance is 35.7 ohms?
714 Volts
400
How many joules of energy used by a 120W light bulb left on for 8 hours?
3,456,000 J
400
Lightning is an example of this.
Electric discharge
400
Aside from the wires and the load, what is the third component of an electric circuit?
Energy source or power source
400
Which subatomic particles are responsible for electricity and electric charges?
Electrons
500
A Samsung 32" TV has a maximum power consumption of 48 W at a voltage of 120 V. How many amps does the TV draw?
0.4 Amps
500
If you used 7,700 kWhr of electricity with your extremely inefficient 1540 W hair dryer, how long did you leave it on?
5,000 hours
500
Why would it be dangerous to replace a blown fuse with a copper penny?
Fuses have very specific resistances to protect the circuits in which they are inserted. The penny would allow too much current to flow through the circuit, damaging electronics.
500
What type of electrical current do batteries produce?
DC or direct current
500
Roy Sullivan holds the Guinness world record for number of times being stuck by lightning. How many times was he struck by lightning?