Current Electricity and Magnetism

What kind of magnet can be turned on and off?

• refrigerator magnet

• electromagnet

• magnetite

• iron

How are electromagnets different from regular magnets? 

• They can be turned on and off

• Their poles can be reversed

• Their strength can be changed

• All of the above

If an object has the same number of positive and negative charges, its electrical charge is...

• positive

• negative

• neutral or no charge

• opposite

True or False
Like charges repel

• True

• False

Tags

NGSS.MS-PS2-3

Materials that easily loose or accept electrons are considered

• Good conductors

• Good insulators

• Good anti-static agents

• Good for storing charge

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-5

What is the major difference between static electricity and current electricity?

• Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons

• Current electricity can be deadly; static electricity is almost always safe

• In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons

• Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

A material in which electrons are able to move easily

• Circuit

• Insulator 

• Resistance 

• Conductor 

Tags

NGSS.HS-PS3-5

An example of a parallel circuit is

• the wiring in a house

• a flashlight

• a single circular path

What does the switch do in a circuit?

• It supplies the power.

• It carries electricity.

• It opens and closes the circuit.

• It is an insulator.

This allows only one path for the electrons to flow:

• conductor

• insulator

• parallel circuit

• series circuit