Texas Blackouts
This amount of people lost power in Texas: hundreds, thousands, millions
Millions
Ohm's Law tells us that the voltage of a circuit is a product of its current and resistance. Voltage is like the ___________ of electricity flow.
Hint: remember our river analogy.
Pressure or Strength
A changing magnetic field will always produce an electric field. The electric field pushes these subatomic particles through copper wire.
Electrons
What is one similarity you noticed between wind and natural gas power plants?
Examples: turbine, generator, energy input, electricity as output, wires, power lines for distribution, etc.
How many paths of conducting material are necessary to power an electrical device?
Two
The blackouts occurred uniformly throughout the entire state.
False
The power of a circuit is equal to the product of the circuits Current times its _______________.
Voltage
Electric current will always produce this type of field. We can determine if the field is present by using a compass.
Magnetic field
A turbine moves like this inside of all power plants.
It spins/rotates
Short circuits occur because electricity always takes the _________ path possible.
shortest
When demand for electricity spiked in Feb. 2021, supply _____________________________.
Started to increase, then sharply decreased.
What is one constraint of putting power lines below ground.
Cost
Hard to maintain if they're damaged
True or False: A magnet sitting on a table will produce its own energy.
False: it only forms a field through which energy can travel.
Which component of our hand-built generators must be attached to a power plant's turbine?
Magnets
If a power line's wire is touching the ground, will it still deliver electricity to its destination(s)?
No - grounded circuit
What is the function of a substation?
To divide up electricity into different amounts as it travels to buildings and houses.
How does a switch work?
On - metal-to-metal connection
Off - air in between, creates broken circuit