Show:
Power Up
It's electric!
Random Numbers
Calculate that circuit
What's that word again?
100
A "D" battery has how many volts?
What is 1.5 volts?
100

Electricity is composed of this type of particle.

What is an electron?

100

The voltage of AC current in North America.

What is 110V? (Between 110-120)

100

The resistance of a circuit with a 5 ohm, an 8 ohm, and a 19 ohm resistor arranged in a series.

What is 32 ohms?

100

A continuous flow of electrons

What is current?

200

A toaster has a power rating of 950 W.  How much current would it draw when connected across a potential difference of 120 V?

What is 7.83 A?

200
This scientist was the inventor of many electrical components including the light bulb.
Who is Thomas Edison?
200

The fundamental charge of an electron.

What is 1.60 x 10-19 C?

200

The resistance of a toaster that has a current of 161 mA when connected across a 12 V source.

What is 75 ohms?

200
A closed loop through which current can flow.
What is circuit?
300

What happens to the power in a resistor if the voltage is tripled?

What is "it increases by 9"?

P = V2/R 

300

The type of circuit where each resistor experiences the same voltage drop.

What is a parallel circuit?

300

The current in a circuit when three 5.0-ohm resistors are connected in parallel to a 9.0 V battery.

What is 5.4 amps?

300

The equivalent resistance of four parallel resistors that have the following resistances: 16 ohm, 44 ohm, 82 ohm, and 23 ohm.

What is 7.1 ohm?

300

Substances that have a low resistance to electrical current.

What are conductors?

400

This is the unit of energy that the electric companies sell to their customers.

What is a kilowatt-hour?

400
When resistance increases in this type of circuit, the bulbs become dimmer.
What is a series circuit?
400

The current in a light bulb is 63.6 mA. Find the number of electrons that pass through the wire in 7.00 seconds. 

What is 2.78 x 1018 electrons?

400

When 17.0 ohm, 10.0 ohm, and 21.0 ohm resistors are connected in series to a 60.0 V circuit.  This is the voltage drop across the 17.0 ohm resistor.

What is 21.25 V?

400

The difference in electric potential.

What is voltage?

500

If a 60-Watt light bulb is plugged into a 120 V wall socket, what is the resistance in the bulb?

What is 240 ohms?

500

If the resistance of a wire is originally R, this would be the resistance if the length was cut in half and the area of the wire was doubled.

What is 1/4 R?

500

At 34¢/kW.hr, what does it cost to operate a 1200-W hair dryer for 32 minutes?

What is 22¢?

500

Three resistors (14 ohms, 23 ohms, and 9 ohms) are connected in parallel to a 24 V source.  This is the percent of the total current that flows through the 9-ohm resistor.

What is 49%?

500

The slowing down of electric charges in current as it travels through matter.

What is resistance?