Introduction to Electricity

What is electricity?

• Waves of free energy

• The movement of electrons

• An imaginary force

• The result of protons being seperated from neutrons

What is the simplest form of matter?

• Element

• Atom

• Proton

• Electron

How many protons are in Beryllium?

• 2

• 4

• 6

• 9

What are valence electrons?

• The electrons that merge with protons to form neutrons

• The electrons in the first two energy levels

• The electrons closest to the nucleus

• The outermost ring of electrons in an atom

What would be an example of a conductor

• Copper

• Alluminum

• Silver

• Wood

Electricity is created as electrons ________ and transfer from atom to atom.

• collide

• flow

• revolve

• transmit

How many valence electrons does an insulator have?

• zero

• 1 - 3

• 5 - 8

• exactly 8

The flow of electric charge is called ______.

• voltage

• current

• resistance

• battery

In the "Electron Flow" model, which direction do the electrons flow?

• Negative to positive

• Positive to negative

• They do not flow, but create waves

• They flow from both sides of the battery to opposite sides of the battery

If you place a resistor before a lightbulb in a series circuit, what happens to the lightbulb?

• The bulb gets brighter

• The bulb gets dimmer

• There is no effect

• The bulb will get hotter