Physics - Investigating Electricity

Which is an example of something that produces static electricity?

• a rechargeable battery

• a dry cell battery

• a power plant

• rubbing two objects together

In a circuit diagram, what does this symbol represent?

• battery

• filament

• bulb

• wire

Why is an electrical wire covered by plastic?

• The plastic is a good conductor of electricity.

• The copper wire inside the plastic is a good insulator of electricity.

• The plastic will not melt if it gets too hot.

• The plastic is a good insulator and keeps the wire from shocking you.

Which of the following diagrams will NOT light up?

• 
• 
• 
• 

Tags

NGSS.4-PS3-2

In which of these diagrams will the light be the brightest?

• 
• 
• 

Match the definition to the correct vocabulary word.

• A circuit in which electric current can flow in an unbroken path

• closed circuit

• Matter that does not allow electric current to easily pass through it

• open circuit

• Matter that allows electric current to easily pass through it

• insulator

• A circuit in which electric current cannot flow

• conductor

Label the positive and negative terminals of the dry cell battery.

a

b

+

-

Use the words in the word bank to label the parts of the incandescent light bulb.

a

b

c

d

screw cap

filament

lead wires

metal tip

Draw the path of electric current through the incandescent light bulb.

Select the types of matter that are good conductors of electrical current.

• glass

• water

• aluminum

• copper

• plastic