Session Two Objectives

Current is defined as the flow of __________.

• electrons

• protons

• neutrons

• atoms

Voltage is defined as the electrical potential difference between two points.

• The electrical potential difference between two points

• The flow of electric charge

• The resistance to the flow of current

• The power consumed by a circuit

Resistance is defined as the opposition to the flow of electric current in a conductor. Which of the following best describes resistance?

• The ability of a conductor to allow the flow of electric current

• The opposition to the flow of electric current in a conductor

• The measure of electric charge in a conductor

• The potential difference across a conductor

Use Ohm’s law to solve for unknown circuit values.

• Calculate the current if voltage is 10V and resistance is 5Ω.

• Determine the voltage if current is 2A and resistance is 3Ω.

• Find the resistance if voltage is 12V and current is 4A.

• All of the above.

What is the ability of a charge to do work called?

• A) Voltage

• B) Potential

• C) Current

• D) Resistance

Electric charge is measured in ________.

• coulombs.

• joules.

• watts.

• newtons.

A battery creates an electric charge by:

• storing static electricity

• converting chemical energy into electrical energy

• using magnetic fields

• absorbing solar energy

What is the unit of measurement for current flow?

• Volts (V)

• Amps (A)

• Ohms (Ω)

• Watts (W)

Resistance is measured in ______ and represented in equations by the letter R.

• ohms (Ω)

• volts (V)

• amperes (A)

• watts (W)

What does Ohm's Law define?

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