AC DC

An electric current is defined as the flow of ? through a conductor.

• electrons

• protons

• nuclei

• ohms

The unit of electrical potential is the ? , which is represented by the letter ? .

• ampere/A

• resistance/R

• volt/V

• watt/W

Current that reverses direction in a regular pattern is called ____. 

• direct current 
• circuit current
• magnetic current
• alternating current 

Current that does NOT reverse direction is called ____. 

• magnetic current
• direct current
• circuit current
• alternating current

What is electric current?

• The flow of electrons
• The flow of protons
• The flow of neutrons
• The flow of atoms

What is the unit of measurement for resistance?

• Voltage

• Ampere

• Watts

• Ohms

Which resistor will prevent the most current flow?

• 1 ohm
• 100 ohms
• 1000 ohms
• 0.5k ohms

How does resistance affect current?

• less resistance - less current
• more resistance - less current
• more resistance - more current
• resistance does not affect current

Static electricity is:

• electricity flowing in a wire
• the buildup of electric charges on an object
• when protons move between objects

Two objects with LIKE static charges will

• attract each other
• even out in the end
• repel each other
• cause a spark

Tags

NGSS.MS-PS2-5