Students examine how materials oppose the flow of an electrical current.  In this resistivity lesson students complete several experiments on the differences between resistance and resistivity.

Students explore the differences between a parallel and a series circuit.In this current lesson students complete several experiments using a light bulb.

Students explain the meaning of Ohm's Law, and plot a graph of voltage versus current, by explaining how the slope is the resistance of the circuit.

Students discuss examples of resistance. In this anti-slavery lesson, students analyze a portrait of James McCune Smith and listen to a lecture about his life and involvement in abolition. Students analyze his actions and write a letter...

Students study the relationship between current, voltage and resistance in a series circuit.  In this investigative lesson students watch a demonstration and see how voltage is measured and see what OHM's law is.   

Learners explore series and parallel circuits. For this physics lesson, students construct a simple circuit and measure its maximum current. They construct their own voltmeter and ammeter that operates at a specified range.

Students determine that moving charges create a magnetic field. They discover that the speed and direction of motion, the amount of charge, and the deflection angle observed are closely linked. A voltmeter, pendulum, and a constructed...

Students view a television program that depicts the history South African Apartheid and the United States' system of segregation. They discuss how laws were used to uphold these institutions and compare and contrast racism and...

Students are introduced to the topics of electric currents and resistance. In groups, they distinguish the difference between conventional and electron flows and state Ohm's Law for electrical components. They calculate the resistance of...

Students investigate how to optimize the power output of a photovoltaic cell using a home-made gnomon stand. They use data collected to create current-voltage and power-voltage curves to determine the "maximum PowerPoint," (MPP) at which...

In this magnets worksheet, students describe the differences between a generator and a motor, define electromagnet, and identify a circuit as parallel or series. This worksheet has 2 short answer questions, 5 fill in the blank and 18...

In this electricity worksheet, high schoolers determine if the circuits shown are parallel or series, calculate the voltage, and the power used by the light bulbs. This worksheet has 11 problems to solve.

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow through the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change. Java...

[Free Registration/Login may be required to access all resource tools.] The differences between series and parallel circuits are highlighted. Provides an in-depth look at how to solve problems about circuits and resistors. Includes a...

Practice finding the equivalent resistance for parallel and series resistor configurations in this four-problem quiz.

Review how to find the equivalent resistance for resistors in parallel and series configurations. Recall the current and voltage properties of series and parallel configurations of resistors.

This resource provides and excellent interactive feature allowing users to test out the properties of resistor color codes. Choose 4, 5, or 6 bands at the top of the page, then click through the colors to determine their effect.

This game will help students learn their color codes for resistors. Students will be given a resistor and they have to determine the resistance of the resistor. Students will have three minutes to get as many correct as possible.

This game will help students learn their color codes for resistors. Students will be given a resistance and they have to determine which combination of colors will match that resistance. Students will have three minutes to get as many...

This lab is designed to have students investigate the factors that affect the rate at which a capacitor charges. Students can change the resistance and capacitance in the circuit and monitor the current, voltage and charge on the...

In this interactive tutorial students will learn about electric current, resistance and current density. Learn how current density relates to electric field strength and how resistance produces heat.

This resistor color code activity allows you to change the resistance value with a slider and then determine the third digit, multiplier, and tolerance, providing the final resistance in ohms. It allows you to view how the passing...

Explains and illustrates the meaning of parallel connections. Discusses the voltage-current-resistance relationships for parallel connections of resistors. An example problem on parallel calculations can be accessed from this page.

Explains and illustrates the meaning of series connections. Discusses the voltage-current-resistance relationships for series connections of resistors. An example problem on series calculations can be accessed from this page.