Current Electricity
How does alternating current differ from direct current?
Direct current always flows in the same direction; the direction of an alternating current switches back and forth
What can you infer about this source of electricity?
It is a source of alternating current
What is a source of mechanical energy?
Wind and fossil fuels
What is the main function of a turbine?
spinning
How does electricity travel from power plants to your house?
through transition wires
Place the following events in sequence: A) Voltage is increased by a transformer; B) Voltage is decreased by a transformer; C) Electrical current enters your home
A, B, C
How does a generator create current?
By using an electromagnet
What is the function of every generator on Earth?
Changing mechanical energy into electrical energy
What is one possible reason why it's a good idea to conserve electricity?
It is often produced by burning fossil fuels, which are a polluting, non-renewable resource.
What do fuel cells, batteries, and solar cells have in common?
They are sources of direct current