Electricity Vocabulary 8th grade
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- What are protons?
- a positively charged particle found in the nucleus of an atom
- What are neutrons?
- a particle with no charge that is found in the nucleus of an atom.
- What are electrons?
- a negatively charged particle found OUTSIDE of atoms
- What is nucleus?
- the central core of an atom that contains protons and neutrons and that account for most of the mass of the atom
- What is a circuit?
- a continuous path for the flow of electrons
- What is static electricity?
- electric charge at rest; generally produced by friction or induction
- What is an atom?
- the smallest particle into which an element may be divided and still be the same substance
- What is a dry cell?
- (battery) a type of chemical cell in which the electrolytes are a paste rather than a liquid
- What is a wet cell?
- a type of chemical cell that uses a liquid electrolyte (water in a cup, lemon)
- What are volts?
- unit of the PUSH of a current
- What are amperes? (amps)
- unit for electric current
- What is electric force?
- the FORCE of attraction or repulsion on a charged particle that is due to an electric field
- What is an electric field?
- the SPACE around a charged object that causes another charged object to experience an electric force
- What are watts?
- Volts + Amps
- What is an electrolyte?
- a substance that conducts electricity, usually dissolved in water or some other solvent.
- What is a battery?
- a group of connected chemical cells that convert chemical energy into electrical energy to produce an electric current
- What is a thermocouple?
- Converts heat energy into electrical energy
- What is energy?
- the capacity to do work
- What is an electromagnet?
- magnets created by flowing electric currents
- What is a friction?
- when electrons are "wiped" from one object onto another
- What is conduction?
- when electrons MOVE from one object to another by DIRECT CONTACT
- What is induction?
- when charges in an UNCHARGED metal object are REARRANGED WITHOUT direct contact with a charged object
- What is a fuse?
- a safety device containing a strip of metal that melts when too much current passes through a circuit containing the device
- What is an electrode?
- a terminal that conducts electrons into or away from the electrolyte in a battery
- What is a galvanometer?
- an instrument that measures small amounts of electric current
- What is a circuit breaker?
- a switch that automatically interrupts a electric circuit under abnormal conditions.
- What is a alkaline battery?
- a long-lived dry cell that has a basic electrolyte which decreases the corrosion of the cell
- What is a resistor?
- a device placed in an electric circuit to provide resistance