Insulators, Conductors, Electrostatics

The Law of Charges mandates that like charges

• attract each other

• repel each other

• don't interact with each other

Tags

NGSS.MS-PS2-3

True or false

"A positively charged object is an object that has gained protons.“

• True because it's protons that move

• False because it's electrons that move

• True because it's electrons that move

• False because it's protons that move

Tags

NGSS.MS-PS2-3

If balloon B is negatively charged, the balloon C has to be

• positively charged

• negatively charged

• neutral

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Electric charges can move most easily on which of the following objects?

• glass tube

• metal plate

• rubber tire

• plastic cup

Which of the diagrams below best represents the charge distribution on a metal sphere when a positively charged plastic tube is placed nearby?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

Something electricity can't move through is called a(n) ______.

• conductor
• wire
• shoe
• insulator

What are Conductors?

• A material that allows electric charge to move through it. Usually the charge is carried by electrons, and the conductor is a metal.

• A material that does not easily allow electric charge (or heat, electricity, light, sound) to pass through it. Air, cloth and rubber are good electrical conductors.

What is NOT an example of an insulator in the kitchen?

• An oven mitt
• Pots and pans
• A wooden spoon
• A plastic measuring cup

Tags

NGSS.HS-PS3-4

Tin foil is an example of _______.

• a conductor
• an insulator

Plastic is an example of _______.

• an insulator
• a conductor

Tags

NGSS.MS-PS3-3