homework 9 vocab Flashcards
battery
a device used to convert chemical energy into electric energy. also known as a group of voltatic cells connected together.
primary cell
a non rechargeable voltaic cell.
secondary cell
a voltaic cell that can be recharged.
electromotive series of metals
a list of metals used for constructing voltaic cells
hydrometer
a device used to measure specific gravity of a fluid.
nickel cadmium cell (ni-cad)
a voltaic cell using nickel and cadmium that lasts very long.
voltaic pile
individual voltaic cells connected together to form a battery
thermocouple
a device that produces voltage due to difference in temperature.
specific gravity
the ratio of volume and weight of a substance to equal the volume and weight of water.
piezoelectricity
electricity by applying pressure to a crystal
solar cell
a device that converts light to electricity
electrode
a terminal that conducts electricity into or away from a conducting substance.
what is the most common source of electricity?
alternator (in a car)
the voltage produced by a battery depends on what?
what it is made out of
is there very little, or a lot of metals in the list of electromotive series of metals?
there is a lot and is quite varied.
