Current Electricity

Series Circuits

100

When adding bulbs to a series circuit, do the bulbs collectively become brighter or dimmer or stay the same?

dimmer

200

What is the formula to calculate the total resistance in a series circuit?

R_T=R₁+R₂+R₃+…

300

A series circuit contains a 2 Ω, 3 Ω, and 5 Ω resistor. What is the total resistance?

10Ω

400

If the voltage across a 10 Ω resistor in a series circuit is 20 V, what is the current flowing through it?

2A

500

A series circuit contains a 5 Ω resistor and a 15 Ω resistor. If the current through the circuit is 2 A, what is the total power dissipated by the resistors?

80W

Parallel Circuits

100

In a circuit, a point where the charges split up and move through different branches is called a _______

junction

200

In a parallel circuit, what is the same across all resistors?

voltage

300

In a parallel circuit, what happens to the total resistance when more resistors are added?

decreases

400

In a parallel circuit, three resistors of 6 Ω, 12 Ω, and 4 Ω are connected. What is the total resistance?

2Ω

500

Kirchhoff's voltage law for parallel circuits

Vp=V1=V2=V3

Knowledge

100

Electrons move from _________ terminal to the _________ terminal

negative, positive 

200

_______ is the rate of flow of electric charge

current

300

A battery uses this paste to convert chemical energy to electrical energy

electrolyte

400

A wire with a greater diameter will have more  / less  resistance than a thin wire

less

500

A ______ is a safety device where the wire inside melts

fuse

Formulas

100

Ohms Law

V=IxR?

200

Solve for time in E=VIt

t=E/VI

300

A light bulb uses 480J of energy in 2min. Find the power.

4W

400

A 3kw dryer costs $2.24 to operate. Using a rate of 7.6c/kwh, how long was it running?

9.82h

500

A toaster has a percent efficiency of 65%.  Find the input energy if the output is 2200J. Round to nearest whole number.

3385J

Electricity Generation

100

What renewable energy source uses sunlight to generate electricity?

solar

200

What type of electricity generation relies on falling water to spin turbines?

Hydro

300

Name one disadvantage of wind power.

Weather-dependent/unpredictable/inconsistent

400

A non-renewable energy source which produces a radioactive waste that needs to be stored carefully for hundreds or thousands of years

nuclear

500

The type of energy that uses burning wood or waste to create electricity

biomass