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45 Cards in this Set

  • Front
  • Back
Negatively charged, the outer part of the atom, always in motion
Neutral, stays in the neucleus and keeps the protons in the nucleus
positively charged, stays in the nucleus, cannot move from one object to another
Positively Charged Object
more protons than electrons, the electrons have been moved to a different object
Negatively Charged Object
An object, which has more electrons in it than protons
Static Electricity
A stationary electric charge, created with friction
Current Electricity
Conduction or a electric current caused by continuous movement of charged particles
Kinetic Energy
Energy in the form of motion
St. Elmo's Fire
A step leader coming up from an object (like a ships mast), but doesnt connect with lightning. In the olden days they thought it was a good sign from the gods
First scientist to study electricity, played with amber and figured some this out about electron
Greek word for amber
Static cling
When protons and electrons separate and the opposite forces attract
Red Sprite and Blue Jet
Both a form of lightning that goes up from the clouds instead of downwards
A device which converts chemical energy to electrical energy
the conductors in a cell (the metal ends)
The liquid or paste in a cell
Two or more cells joined together
Which was will the compass point
Geographical North is magnetic south. A compass always points south. If a compass is held between the north side of a magnet and a south side, the compass would point to the south
Output over input
Iron, nickel, cobalt
These are the only things which stick to magnets and the only things that you can make permanent magnet out of because th electrons all travel in the same direction
Dr. Galvani
Experimented with frog legs, and though he could temporarily bring people back to life with a shock
Hated Galvani and used his observations of the frogs to make the first cell
Discovered that a wire with electricity running through it had a magnetic field running through it
It occurs when you wrap a wire around a metal and attach each end of the wire to a cell and run the electricity through the wire, which is around the metal, creating a magnet
Different ways to make electricity
Geothermal, solar or photoelectric, hydro, wind, thermocouple, nuclear, and piezoelectric effect
Parts of an electric motor
Brush, electromagnet, split ring commutator, insulating gap, armature, magnets, brush
can be serious or parallel and includes a source, control, conductor and load
Open circuit
When the switch or control is open and electricity cannot move
Closed Ciruit
When the switch or control is down and the electricity can move through the circuit
Short Circuit
When the electricity goes around the load and goes really fast; this is very dangerous
Series Circuit
The electricity has to pass through every load, if one goes out, they all go out
Parallel circuit
The electricity goes through the different loads seperatly and there can be different switches for different things
Circuit Breaker
Uses a bimetallic strip to automatically turn off the electricity if it is short circuiting and going to fast and getting to hot
Thin wire incased in glass that melts if it gets to hot and shuts off the circuit
Incandescent light bulbs
A light bulb with a thin wire, which creates a lot of resistence with electricity and glows as a result
Thin wire inside an incandescent light bulb
Florescent light
Electricity runs through the filament and transfers into the gasses, making the excited and they glow
Hot wires:
carry electricity to the load
Neutral wires
do not carry electricity
Alternating Current, current moves back and forth
Direct Current, current goes directly to your house and the appliance being used
This is what needs th eenergy, or wher eis energy is being transfered to. Ex. lightbulb, t.v.
What you use to control whether the electricity is running in a complete circuit or is turned off
This would be the wire that the electricity uses to get to the load
This would be the cell or generator, it produces or procide the circuit with electricity