Electrical Circuits

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

When electricity flows in a circuit, it can produce all of the following forms of energy EXCEPT,

• solar
• light
• thermal
• sound

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

An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —

• Point D to Point C
• Point B to Point C
• Point A to Point D
• Point B to Point D

A student attached the parts as shown here and the bulb did not light.
The most likely reason the bulb does not light is because -

• batteries can’t provide electric energy
• the flow of electricity can’t make a bulb light
• the switch must be open for electricity to flow
• yarn does not conduct electricity

This lamp produces light.
When the lamp produces light, it demonstrates that the lamp must have a –

• powerful magnet
• rechargeable battery
• complete circuit
• plastic cord

Will this configuration of a complete circuit and light a bulb?

• yes
• no

Will this configuration of a complete circuit light a bulb?

• yes
• no

A device for opening or closing the flow in a circuit is _______.

• Insulator
• Battery Charger
• Switch

Electrical energy is changed to ______________ in light bulbs.

• Light Energy
• Heat Energy
• Sound Energy
• Mechanical Energy