Electric Circuits

Electrons in wires are free to move.

• True

• False

• Not enough data

• All of the above

Electrons have a positive charge.

• True

• False

• Not enough data

• All of the above

What does the symbol mean?

• Switch

• Wire

• Battery/Cell

• Light Bulb

Which of the following is the symbol for light bulb?

• 
• 
• 
• 

Complete the sentence: When electrons flow faster in a circuit, the current is ______________

• Increases

• Decreases

• Stays the same

What is the SI unit of electric current?

• Volts

• Amps

• Ohms

• Watts

What is the unit of resistance?

• Volts

• Amps

• Ohms

• Watts

What is the unit of electric potential?

• Volts

• Amps

• Ohms

• Watts

A device that is used to measure the current in a circuit.

• 
• 
• 

How much voltage does a circuit need to have a current of 25 amperes flowing through a resistance of 6 ohms?

• 125 v

• 130 v

• 145 v

• 150 v