Forms of Energy

A student wants to build a circuit with four light bulbs and one bell. The student wants to place a switch in the circuit so that only one light will still be on and the bell will still ring when the switch is opened.

Which of these circuit should the student build?

• A

• B

• C

• D

A student builds a circuit allowing the light bulbs to light, the buzzers to make sound, and the motors to turn.

Which two switches can be open and still allow all of the parts to work?

• Switches 1 and 3

• Switches 1 and 4

• Switches 2 and 3

• Switches 3 and 4