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Electricity 4-6

QuestionAnswer
Thermal energy energy from heat. Also the most commonly "lost" type energy in conversions
chemical energy energy from chemical reactions
electrical energy energy from moving electrons
mechanical energy energy from movement
light energy energy that you can see
filament the resistant coil of wire in a lightbulb that turns electrical energy to thermal and light energy
Thermocouples convert heat into electrical energy
photovoltaic cells another name for solar panels
piezoelectric effect pressure (mechanical energy) turning into electrical energy. ex. musical greeting cards
electrochemical cells placing metallic electrodes into an electrolyte where a chemical reaction either uses or generates an electric current. A very basic battery.
Giovani Galvani Scientist who believed in "animal electricity"
Alessandro Volta Scientist who created the "Volta Pile" which was the first battery
Electrodes Metal portion of an electrochemical cell
anode negative electrode
cathode positive electrode
electrolyte liquid portion of an electrochemical cell. Must be acidic or salty
wet cell When the electrolyte is a liquid
dry cell when the electrolyte is paste or flaky
primary cells single use batteries
secondary cells rechargeable batteries
Generators device that turns mechanical energy into electrical energy
motors device that turns electrical energy into mechanical energy
Electromagnets Using the link between electricity and magnetism to create electricity from magnets or vice versa
Alternating Current e- flow in one direction, then change. About 50-60 times a second . Used in powerlines
Direct Current current that only flows in one direction. Used in batteries
split ring communtator device used in DC electricity to ensure it only flows one way
Armature device in a motor that functions like an electromagnet
Created by: carly.riddle