Electric Currents and Electric Circuits | Baamboozle - Baamboozle

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electric currents and circuits - lesson 2

Study Slideshow

the movement of electrically charged particles

electric current

15

an electric current that continually flows in ONE direction

direct current

15

an electric current that continually REVERSES direction

alternating current

15

a closed path in which an electric current flows

electric circuit

15

a machine that transforms mechanical energy to electric energy

generator

15

a measure of how difficult it is for an electric current to flow in a material

electric resistance

15

the amount of energy used to move one coulomb of electrons through a circuit

voltage

15

the unit used to count electric charges

coulomb

15

What are the FOUR parts of a simple circuit?

switch, electric energy source (battery), electric device (lightbulb), electric conductor (wire)

25

TRUE/FALSE: A good conductor has little electric resistance so electric current can flow through it.

TRUE

10

TRUE/FALSE: Flashlights use direct current.

TRUE

10

TRUE/FALSE: TVs, computers and other appliances use alternating current.

TRUE

10

How do electrons move through a battery?

Chemical reactions within a battery move electrons from one end of the battery (positive terminal) to the other end (negative terminal).

20

Moving electrons have ___ energy.

kinetic

15

Most current used in homes and businesses is ___ current

alternating

15

circuit in which there is only ONE path for the electric current to follow

series circuit

15