Series Circuits
When adding bulbs to a series circuit, do the bulbs collectively become brighter or dimmer or stay the same?
dimmer
In a circuit, a point where the charges split up and move through different branches is called a _______
junction
Electrons move from _________ terminal to the _________ terminal
negative, positive
Ohms Law
V=IxR?
What renewable energy source uses sunlight to generate electricity?
solar
What is the formula to calculate the total resistance in a series circuit?
RT=R1+R2+R3+…
In a parallel circuit, what is the same across all resistors?
voltage
_______ is the rate of flow of electric charge
current
Solve for time in E=VIt
t=E/VI
What type of electricity generation relies on falling water to spin turbines?
Hydro
A series circuit contains a 2 Ω, 3 Ω, and 5 Ω resistor. What is the total resistance?
10Ω
In a parallel circuit, what happens to the total resistance when more resistors are added?
decreases
A battery uses this paste to convert chemical energy to electrical energy
electrolyte
A light bulb uses 480J of energy in 2min. Find the power.
4W
Name one disadvantage of wind power.
Weather-dependent/unpredictable/inconsistent
If the voltage across a 10 Ω resistor in a series circuit is 20 V, what is the current flowing through it?
2A
In a parallel circuit, three resistors of 6 Ω, 12 Ω, and 4 Ω are connected. What is the total resistance?
2Ω
A wire with a greater diameter will have more / less resistance than a thin wire
less
A 3kw dryer costs $2.24 to operate. Using a rate of 7.6c/kwh, how long was it running?
9.82h
A non-renewable energy source which produces a radioactive waste that needs to be stored carefully for hundreds or thousands of years
nuclear
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
Kirchhoff's voltage law for parallel circuits
Vp=V1=V2=V3
A ______ is a safety device where the wire inside melts
fuse
A toaster has a percent efficiency of 65%. Find the input energy if the output is 2200J. Round to nearest whole number.
3385J
The type of energy that uses burning wood or waste to create electricity
biomass