Electric Circuits

Sidney wants to make an electric circuit. She gathers the following items: a light bulb, wire, and a metal screw. What additional item does she need to make a complete circuit?

• battery
• insulator
• switch
• conductor

Tags

NGSS.MS-ETS1-1

Which of the following items would work best to complete a circuit?

• metal coin
• glass bead
• plastic straw
• wooden toothpick

Roberto makes an electric circuit that has a switch as one of its parts. The diagram below shows the circuit that he makes. What would happen to the light bulb if Roberto changed the switch from closed to open.

• It would be duller.

• It would be brighter.

• It would stop glowing.

• It would start glowing.

Tags

NGSS.MS-PS2-3

Sara arranges the parts of a circuit as shown below. Where should Sara put a piece of wire in order to complete the circuit?

• between the top of the battery and the top of the paper clip

• between the top of the battery and the bottom of the light bulb

• between the top of the paper clip and the bottom of the battery

• between the top of the paper clip and the bottom of the light bulb

The electric circuit below consists of a battery, a switch, and three light bulbs. What type of circuit is shown in the diagram?

• closed circuit

• series circuit

• magnetic circuit

• parallel circuit

Erica looked at a group of objects and classified them as electrical conductors or insulators. She made the table below to show her results. How many objects are classified correctly?

• 0

• 2

• 1

• 4

A lightbulb converts electrical energy into which of the following?

• light only
• heat only
• heat and light
• light and motion

Many appliances in your home and school use electrical energy. Which of these appliances is intended to convert electrical energy into sound energy?

• printer
• refrigerator
• electric fan
• radio

What is the flowing movement of electricity called?

• electric current
• closed circuit
• movement
• hydroelectricity

What provides the energy which helps electrons to flow?

• battery
• cables
• a paperclip
• a light bulb