Conductors, Insulators & Circuits
Current consists of flowing _______
electrons
A closed loop with a ______ source (battery or outlet) is required to make a current flow in a circuit.
voltage
A stove that is turned off but using 10 watts to run the clock is an example of ________.
Stand by power
A magnet has a ____ and _____ pole
north, south
Alternating current moves ______ and _________
forward, backward
The type of material where electrons do not move between atoms.
Insulator
What direction do the electrons flow in a circuit connected to a battery?
Negative terminal to positive terminal
A _________ will step up or step down the voltage.
Transformer
Gravitational fields and electric fields are radial shaped while a magnetic field is ______
closed loop
Fossil fuels are stored ________ energy
chemical
The copper on the inside of an electric wire is a ________
conductor
What type of energy is stored in a battery?
Chemical
Spinning the rotor faster on a generator will _______ the electrical output.
Increase
Magnetic fields get stronger with ________ distance
closer
Water, wind, steam, solar energy. Which is not used to turn a turbine to generate electricity?
Solar
The type of circuit with more than 1 path for the current.
Parallel
What happens to the current if more resistance is added to the circuit?
It decreases
What type of energy does a direct current lose when travelling long distances?
Thermal
Changing a magnetic field will create a ________.
current
What form of energy is stored with a hydropower plant?
Gravitational
What happens to the rest of the light bulbs in a parallel circuit, if one light bulb is removed.
They stay lit
What is the resistance of a 120v circuit with 12 amps?
10 ohms
$0.60
A strong magnetic field will align spinning electrons in the _______ direction
same
Why are flywheels and batteries important for renewable resources like solar and wind power?
They serve as backup energy when it is not very windy or sunny.