Electricity Unit Test

What charge does a proton have?

• Negative

• Neutral

• Positive

• Extra

If resistance increases, what happens to current?

• Increases

• Decreases

• No Change

If we move away from a charged particle, how does the electric field strength change?

• Increases

• Decreases

• No Change

The Inverse Square Law says that the intensity decreases at a rate proportional to ________ squared.

• Current

• Acceleration

• Distance

• Frequency

Why are metals useful for making electrical wire?

• Metals do not bend.
• Metals hold much heat.
• Metals are insulators.
• Metals are conductors.

What charge does an electron have?

• negative (-)
• positive (+)
• neutral or no charge (0)

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

Electricity needs a _____________________ to move through

• Source

• Path

• Circuitry

• Flow

Positive and negative charges attract:

• TRUE

• FALSE

What is this symbol?

• Battery

• Lamp

• Switch

• Wire