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SCIENCE
Energy and Electircal Energy VOCAB
20
Science
8th Grade
01/16/2013

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Term
energy
Definition
the ability to do work
Term
2 types of energy
Definition
  • kinetic
  • potential
Term
kinetic energy
Definition
the energy of motion
Term
potential energy
Definition
the energy an object has because of it's position and chemical make-up
Term
The amount of kinetic energy somethinghas at any point in time depends on its _____ and _________.
Definition
mass and velocity
Term
charging of an object
Definition
this happens when the atoms in an object gain or lose electrons
Term
If an object has lost electrons it is ______ charged.
Definition
positively
Term
If an object has gained electrons it is_________ charged.
Definition
negatively
Term
Law of electric charges
Definition
  • says that opposite attracts
  • positively charged objects are attracted to negatively charged objects
Term
conduction
Definition
when an object becomes charged because it has touched another object
Term
induction
Definition
when an object becomes charged because it comes near another charged object
Term
conductors
Definition
substances that carry electrical energy well
Term
insulators
Definition
substances that don't carry electrical energy well
Term
static electricity
Definition
when charges build up on an object
Term
electric discharge
Definition
when built up charges (static electricity) leave the object; so that it is no longer charged
Term
resistance
Definition
when a substance does carry electricity, but it slows it down
Term
circuit
Definition
a circular path that electrical charges flow through
Term
load
Definition
anything that can be made to work by electricity
Term
series circuit
Definition
a circuit with more than one load, all in one big circle
Term
parallel circuit
Definition
a circuit with more than one load, but each load has a separate branch, so it is on its own circle
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