Vocabulary
What is a circuit with a single path for the flow of electrons?
What is a Series Circuits
This law states that the amount of current entering a junction must equal the amount of current exiting the junction.
What is Kirchhoff's Current Law?
This is one of the environmental concerns associated with hydropower, especially with the construction of dams.
What is habitat disruption?
This material has zero electrical resistance and is extremely efficient.
What is a superconductor?
This device is used to measure the amount of electric current in a circuit.
What is an ammeter?
This type of energy involves using moving water, such as rivers or dams, to generate electricity.
What is hydropower?
The equation for Ohm's law is
V= IR
Why was coal considered to be a better production of energy than wood?
Coal burned hotter and cleaner.,
In this type of current, the electrons periodically reverse direction in a circuit.
What is alternating current (AC)?
This 1820 discovery confirmed the relationship between electricity and magnetism.
Who is Hans Christian Ørsted?
This is the term for the opposition to the flow of electric current.
What is resistance
In Kirchhoff's Voltage Law, this is the "push" that electrons get from the power source.
What is voltage?
This method of electricity generation is often considered bad for the environment due to greenhouse gas emissions.
What is fossil fuel-based generation (coal, natural gas, etc.)
This scientist invented the first electric motor in 1821.
Who is Michael Faraday?
This is the formula used to calculate electrical power.
What is P = IV? (Power = Current × Voltage)
These are the devices used to convert sunlight directly into electricity.
What are photovoltaic (PV) panels?
This law is used to calculate the total resistance in a series circuit.
What is Ohm's Law
This type of energy can contribute to energy security by reducing reliance on imported fossil fuels.
What is biomass energy?
If the resistance in a circuit is 10 ohms and the current is 2 amperes, what is the voltage?
What is 20 volts? (V = IR)
This is the unit for electrical energy commonly used to measure electricity consumption over time.
What is the kilowatt-hour (kWh)?
This is the unit of measurement for resistance in a circuit.
What is Ω ?
What is is the voltage drops across an electrical load that has resistance of 120 Ω and a current of 50mA flowing through it?
1000 mA= 1A
6 V
I=50mA = 50/100=0.05A
(I= 0.05A) R= 120Ω
V=0.05A*120Ω
V=6V
Electric vehicles (EVs) contribute to reducing these emissions, which pollute the air and contribute to climate change.
What are tailpipe emissions?
This is a method of reducing voltage in a circuit, such as for use in household appliances.
What is a step-down transformer?
What does the burning of coal release that contributes to the formation of acid rain?
What is : NOx & SO2