The accumulation of excess electric charge on an object
What is static electricity
100
a closed path that an electric current follows
What is a current
100
energy source that provides more energy in one day than is used by the US in over a year
What is solar energy
100
Energy sources named because they are formed from the decaying remains of ancient plants and animals
What is fossil fuels
100
The elements used to absorb neutrons and keep power plants from exploding
What are Boron and Cadmium
200
The law that states that charge can be transferred from object to object, but cannot be created or destroyed
What is the Law of Conservation of Charge
200
the three characteristics that can affect electric resistance
What are temperature, length, and thickness
200
Electricity produced from the energy of moving water, producing no pollution and twice as efficient as fossil fuels or nuclear power plants
What is Hydroelectricity
200
the process used to separate good hydrocarbons from bad
What is fractional distillation
200
The type of nuclear reaction used in nuclear power plants because it is the most stable
What is nuclear fission
300
This surrounds every electric charge and exerts the force that causes other electric charges to be attracted or repelled.
What is an electric field
300
The formula for Ohm's law (determining current)
What is current = voltage difference / resistance
300
disadvantages of this energy source include limited locations where the length of time needed to produce energy can be found
What is Tidal energy
300
The solid fossil fuel mined from the Earth-90% of which is burned by power plants to generate electricity
What is coal
300
the element whose nuclei can undergo fission, and is therefore ideal for creating nuclear power
What is Uranium 235
400
The process of transferring charge by touching or rubbing
What is charging by contact
400
Describe the three types of circuits
Series-the circuit only has one loop to flow through
Open-when any part of the circuit is disconnected, no current flows through (i.e. old Christmas lights)
Parallel- two or more branches are available for the current to flow through
400
advantages: uses energy of the wind, pollution free, do not consume natural resources
disadvantages: only 20% efficient, can be noisy, can change the appearance of the landscape, can disrupt bird migration patterns
What is Wind Energy
400
Only 35% of the energy contained in fossil fuels are delivered to homes, schools, and businesses
What is the efficiency of power plants
400
How high-level nuclear waste is disposed
What is through the process of storing the reactors in ceramic glass and metal containers, and burying the containers in stable rock formations or salt deposits
500
The rearrangement of electrons on a neutral object caused by a nearby charged object
What is charging by induction
500
The voltage difference in most US households
What is 120 V
500
geothermal energy
What is thermal energy contained inside hot magma
500
the least efficient stage in converting fossil fuels to electricity
What is chemical--> thermal energy
500
energy from the sun that involves joining small nuclei at high temperatures. Also the most concentrated energy source known to man