Vocabulary
negatively charged particle
electron
What is a circuit?
A closed or complete path in which an electric current flows
negative charge
What is an electric current?
the movement of electrically charged particles
positively charged particle
proton
Name two types of circuits
series and parallel
What happens when a neutrally charged material comes in contact with a different type of material ?
it becomes charged depending on how many electrons or protons are in the other material
What is the importance of a switch?
It allows or does not allow the flow of electricity
a particle that has equal amounts of positive and negative charges
neutral
What three things do each simple circuit contain?
1. a source of electric energy
2. an electric device
3. an electric conductor
What are the three types of electrical discharges?
sudden, continual, steady
Name two sources of electric energy.
batteries, generators, solar cells, fuel cells
a material in which electric charges cannot easily move
insulator
Name a type of material electric charges cannot easily move through.
wood, paper, glass, rubber, etc.
What kind of cells change sunlight into electric energy?
solar cells
What is the difference between an alternating and direct current?
alternating- the electric current continually reverses directions
direct- there is one steady stream of electric energy
a closed or complete path in which an electric current flows
circuit
What is a conductor?
What amount of energy is used when given a high voltage?
high energy
How are currents and circuits related?
The circuit is the path for the current.