PS: Electricity and Circuits Quiz - ch.21 Review

An electric _____ is a complete path through which electric current travels

• circuit

• static

• resistance

What does this symbol mean in a circuit diagram?  

• battery

• bulb

• switch

What does this symbol mean in a circuit diagram?  (Note:  sometimes an "X" in a circle is also used)

• battery

• bulb

• switch

What does this symbol mean in a circuit diagram?  

• open switch

• closed switch

• battery

All the energy used in your home was converted into a usable form by a  _____ .

• electrician

• power plant

• witch

Which term measures ELECTRIC POTENTIAL ENERGY?

• voltage

• ohm

• Ampere

Which term is a unit that measures ELECTRIC CURRENT?

• Ampere

• Ohm

• Voltage

Protons are electrically ___, and electrons are ___

• positive, negative

• negative, positive

• negative, neutral

Positive electric charges:

• repel positive charges and attract negative charges.

• attract positive charges and repel negative charges.

The motion of charges in wires, motors, light bulbs and other devices is best called electric:

• current

• power

• voltage