In the picture, if you replace the paper clip with a plastic spoon, what happens? 

• The bulb doesn't light
• The bulb is dimmer
• The wires get hot
• There is no charge

A string of lights with small bulbs is shown below. The bulbs are connected by wire that is covered in an insulator. When the lights are on, electricity travels in....

• a complete circuit

• a sound wave

• a light ray

• an incomplete path

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw
• cotton string
• aluminum foil
• rubber eraser

Tags

NGSS.4-PS3-2

This circuit is .....?

• open

• parallel

• closed

• broken

A circuit must be closed for electricity to travel.

• true

• false

What is the function of the switch in a circuit?

• to make the electricity hotter or colder

• turn on and off the flow of electricity

• the pathway that electricity flows

• to add more power to the circuit

Which of these best allows electricity to flow in the circuit?

• rubber band

• metal nail

• leather shoelace

• wooden toothpick

Which of the following can supply energy in a circuit?

• a conductor

• light bulb

• a wire

• a battery

When a circuit is open , the circuit is -----?

• On

• Off

A complete circuit is an open circuit .

• True

• False