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31 Cards in this Set
- Front
- Back
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atom
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Tiny particles that make up everything in the universe. Each atom is made up of even tinier parts.
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negative charge
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The kind of electric charge carried by ELECTRONS.
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electron
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A negatively charged particle of an atom. They zoom around the outside of the atom.
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proton
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A positively charged particle in the nucleus (centre) of the atom.
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positive charge
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The kind of charge a PROTON carries.
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nucleus
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The centre of the ATOM. Neutrons and protons are in the nucleus.
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neutrons
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A particle in the nucleus of the atom. The neutron has no charge, therefore it is neutral.
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static electricity
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One kind of electricity where the electrons are NOT flowing (that's what "static" means). Caused by negative charges (electrons) transferring from one object to another through rubbing.
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current electricity
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One kind of electricity where the electrons ARE flowing along.
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electric current
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The flow of electrons along a pathway.
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circuit
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The path that electricity follows.
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battery
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An energy source of two or more electric cells connected together.
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direct current
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An electric current that only flows in one direction. A battery produces this kind of current.
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voltage
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The electric FORCE or PUSH that causes the free electrons to move from one atom to another.
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circuit
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The path that electricity follows.
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conductors
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Materials that electricity can flow through easily. These materials are made up of atoms whose electrons can move away freely.
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battery
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An energy source of two or more electric cells connected together.
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insulators
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A material that holds on to its electrons, and because of that electricity can't flow through it easily. It RESISTS the flow of electricity and prevents heat from escaping too!
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direct current
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An electric current that only flows in one direction. A battery produces this kind of current.
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switch
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Controls the flow of the electric current; it stops the flow or lets it go! (When you turn a light switch to ON, it is actually stopping the flow, and the current goes slowly through the resistors in the bulb, creating heat and light.)
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voltage
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The electric FORCE or PUSH that causes the free electrons to move from one atom to another.
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closed circuit
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Electrons can flow all the way through the circuit (think of an oval toy racetrack which cars can zoom around without stopping).
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conductors
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Materials that electricity can flow through easily. These materials are made up of atoms whose electrons can move away freely.
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insulators
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A material that holds on to its electrons, and because of that electricity can't flow through it easily. It RESISTS the flow of electricity and prevents heat from escaping too!
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open circuit
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Electrons are stopped from flowing through the circuit (think of an oval toy racetrack with part of the track removed. Cars can't go all the way around).
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series circuit
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A circuit with only ONE pathway for the electrical current to flow through.
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switch
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Controls the flow of the electric current; it stops the flow or lets it go! (When you turn a light switch to ON, it is actually stopping the flow, and the current goes slowly through the resistors in the bulb, creating heat and light.)
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closed circuit
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Electrons can flow all the way through the circuit (think of an oval toy racetrack which cars can zoom around without stopping).
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open circuit
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Electrons are stopped from flowing through the circuit (think of an oval toy racetrack with part of the track removed. Cars can't go all the way around).
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series circuit
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A circuit with only ONE pathway for the electrical current to flow through.
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parallel circuit
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A circuit that has MORE than one pathway for the current to flow through.
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