Electrical Circuits

What is an electrical circuit?

• lets you turn the energy on and off
• a closed path where where electricity flows
• stop electricity from flowing through

What is a battery?

• switch
• power source
• insulator

A complete circuit has .......

• a motor in it
• a switch in it
• two bulbs in it
• no breaks in it

A student began building a circuit to light a bulb.  What else does the student need to produce light?

• a battery that has energy
• a wire that is insulated
• a switch that is open
• another bulb of the same size

This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -

• the switch gives energy to the battery
• the buzzer is made of special plastic
• the wires are cooled by the surrounding air
• electricity can flow in a complete path

What kind of circuit is this?

• Series
• Consecutive
• Parallel
• Training

Which of the following can work as an energy source?

• Battery
  
• Light bulb
• Wire
  
• All of them

Batteries convert what type of energy into electricity?

• Chemical energy
  
• Mechanical energy
  
• Both
• Kinetic energy

Which bulbs will light?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 2

Is the following photo of an open circuit or closed circuit? 

• A closed circuit which allows electricity to flow
• An open circuit which does not allow electricity to flow