Electric Current

Voltage is a measure of the ____________ between two places.

• resistance potential
•  potential differnce
• current flow

A closed path through which electrons can flow is _________.

• voltage
• a circuit
• circus

Potential difference is measured in _____.

• volts
• amperes
• ohms

The flow of electrons through a wire or any conductor is called_____.

• current
• a circuit
• flood

Tags

NGSS.HS-PS2-5

Because it has a potential difference between the positive and negative terminals, a _____ can act as an electron pump.

• voltmeter
• dry cell

A car battery is an example of a _________.

• wet cell
• dry cell
• jail cell

Tags

NGSS.HS-PS2-5

The tendency for a material to oppose  the flow of electrons is called_____.

• voltage
• resistance
• current

Resistance is measured in units called ______.

•  volts
• ohms
• amperes

Current is measured in _______.

• volts 
• amperes
• ohms

Tags

NGSS.HS-PS2-5

The equation I = V/R mathematically expresses ______.

• Ohm's law
• current law
• Newton's law