This lab demonstrates Ohm's law as students set up simple circuits each composed of a battery, lamp and resistor. Students calculate the current flowing through the circuits they create by solving linear equations. After solving for the...

Students build a saltwater circuit, which is an electrical circuit that uses saltwater as part of the circuit. Students investigate the conductivity of saltwater, and develop an understanding of how the amount of salt in a solution...

Students act as engineers to apply what they know about how circuits work in electrical/motorized devices to design their own battery-operated model motor vehicles with specific paramaters. They calculate the work done by the vehicles...

A simple science fair project to test whether electricity can flow between two things. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on terms,...

Students teams each use a bar magnet, sheet of paper and iron shavings to reveal the field lines as they travel around a magnet. They repeat the activity with an electromagnet made by wrapping thin wire around a nail and connecting...

Students investigate circuits and their components by building a basic thermostat. They learn why key parts are necessary for the circuit to function, and alter the circuit to optimize the thermostat temperature range. They also gain an...

Students learn about electricity and air pollution while building devices to measure volatile organic compounds (VOC) by attaching VOC sensors to prototyping boards. In the second part of the activity, students evaluate the impact of...

Determine the internal resistance of a battery based on the graph of terminal voltage vs. current. Also find the maximum current and the electrochemical potential.

At this site from Georgia State University parallel and series connections of resistors are explained and illustrated. Equations for computing the overal voltage, current, and resistance of such circuits are given and explained.

Explains Ohm's Law which is the mathematical relationship between electric current, resistance, and voltage.

This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 2 of 4 in the series titled "Electric Circuits."

This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 4 of 4 in the series titled "Electric Circuits."

Kids learn about Ohm's law in the science of electricity and physics including current, resistance, voltage, example problems, and V=IR.

[Free Registration/Login Required] Students can use this Flipchart to learn and apply Ohm's law to basic circuitry problems. Students are introduced to the relationship among voltage, current, and resistance, and then apply their newly...

Find out how the SPARKS DMM can measure AC voltage and current.

Answer questions regarding voltage drops across resistors and currents through them in such circuits. Practice calculating the effective resistances of a set of resistances in series and parallel.

This lab is designed to have students investigate the relationships between voltage, resistance and current in a circuit with only one passive component. The batteries in this simulation can be varied from ideal batteries to batteries...

This lab is designed to have students investigate the relationships between voltage, resistance and current in a parallel circuit with up to three passive components. The batteries in this simulation can be varied from ideal batteries to...

Explore circuits with resistors in parallel and answer questions regarding voltage drops across resistors and currents through them in such circuits.

This interactive simulation guides you through the wiring of the standard breadboard and presents you with questions regarding voltage drops and currents in series resistive circuits.

In the everyday electrical devices we use - calculators, remote controls and cell phones - a voltage source such as a battery is required to close the circuit and operate the device. In this hands-on activity, students use a battery,...

Find out about the German physicist and mathematician whose work in the field of electrical current shaped the study of electricity.

[Free Registration/Login Required] Learn about electric circuits, the flow of current, electrical resistance, and electrical power dissipation by exploring the operation of a flashlight using this interactive simulation. A PDF worksheet...

[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about parallel circuit design, and how to calculate equivalent resistance from resistors in a parallel circuit.