Last Chem Notes Flashcards
(15 cards)
__________(in solar panels) –> batteries
Photovoltaic cells
_______________ (in solar panels) —-> ______
Photovoltaic cells
Batteries
Tesla : ________:_________
AC
Alternating current
Edison: _______: _______
DC
direct current
What do batteries do?
Store electricity
Can power plants store energy?
No
______
- full capacity during the day
- low capacity at night = wasted efficiency
Power plants
________: electrons travel in one direction only
- batteries, solar cells
direct current
What does direct current mean? Examples of a direct current.
electrons travel in one direction only
- batteries, solar cells
__________: back and forth motion of electrons.
= 6o hertz “push and pull” (60 “switches”/second)
Alternating current
Whats used to transmit longgggggg disssstannceeeee
AAAAAAACCCCCC
AAAAALLLLTTERRRRNNAAATTTIIINNGGG CURRRENNT
How long is a DC direct current
1 mile
Cations:________
positively charged ions
If a pair of large electrical contacts, or electrodes, connected to a power source are dipped into an electrolyte solution, POSITIVELY CHARGED IONS (_____) in the solution will be attracted to the electrode called the CATHODE and negatively charged ions ANIONS) in the solution will be ATTRACTED toward the electrode called the ANODE. This movement of ions allows the solution to conduct an electric current between the wires. The flow of charge in the solution is due to the movement of ions.
cations
If a pair of large electrical contacts, or electrodes, connected to a power source are dipped into an electrolyte solution, POSITIVELY CHARGED IONS (CATIONS) in the solution will be attracted to the electrode called the _____ and negatively charged ions ANIONS) in the solution will be ATTRACTED toward the electrode called the ANODE. This movement of ions allows the solution to conduct an electric current between the wires. The flow of charge in the solution is due to the movement of ions.
Cathode
