Electric Current

What will happen to the light bulb if we open the switch in a closed circuit?

• it will be broken

• it will turn off

• it will turn on

• it will make sound

Metals such as copper and aluminum are good ______________. 

• insulators

• conductors

• circuits

• charges

Tags

NGSS.MS-PS2-3

What is current measured in?

• Ω (Ohms)

• V (Volts)

• A (Amps)

• W (Watts)

An electric current that has constant magnitude and direction over time is known as a(n)

• direct current

• alternating current

• simple current

In solid conductors, electric current is the flow of

• positive and negative charges

• electrons

• negative ions

• protons

Define electric current.

• It is the work done by the source in driving charges around a complete circuit.

• It is a measure of the rate of flow of electric charge through a given cross-section of a conductor.

• It is the work done by the source in driving a unit charge around a complete circuit.

• It is a measure of the flow of electric charge through a given cross-section of a conductor.

The continuous flow of electric charges through a material

• electric current

• electric circuit

• voltage

• parallel circuit

The movement of electrically charged particles is 

• electric current

• electric circuit

• electric resistance

The two types of current are...

• AC/DC

• Alternating Current

• Direct Current

• All of the above

___________ wires keep electrons on course & protect us from the dangerous flow of electricity. 

• Insulated

• Conducted

Tags

NGSS.MS-ETS1-1