In this learning activity you'll review how a short affects current flow and voltage in a series circuit.

Learners observe current flow throughout the series portion and branches of a parallel circuit. This animated activity includes calculations and a short quiz.

In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how current increases in a parallel circuit as branches are added.

In this animated learning object, learners examine how an ultrasonic flowmeter measures the flow of liquids through a pipe using ultrasonic sound waves. A short quiz completes the activity.

Learners study the most common ways to measure fluid flow for industrial processes including absolute quantity, percentage, volumetric flow rate, and mass flow. A brief quiz completes the activity.

In this learning activity you'll explain how voltage and resistance in a series circuit affect current flow.

This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.

In this learning activity you'll review how an open in a series circuit affects current.

Learners view animations showing how a time-of-flight flowmeter uses ultrasonic sound waves to measure the flow of a liquid.

Learners study animated rheostat settings that show how current flow is inversely proportional to resistance. Ten review questions complete the learning object.

Learners read how an inductor opposes a current change when it begins to energize and when it begins to de-energize. A short quiz completes the activity.

Learners identify negative roles, match statements characteristic of each role, and relate how they have handled negative teams.

Learners examine how CEC, base saturation, and soil pH work with each other to define plant nutrient availability.

In this animated learning object, users study the factors that affect a pipe’s fluid flow and how those factors pertain to a numerical value (the Reynolds Number).

Learners view an animation showing the operation of a Vortex flowmeter that is used to measure flow in a process control system.

Learners follow step-by-step instructions for creating a current-state map to identify how materials and information flow.

Learners take a close look at the Edison Wire System and observe how the current values through the two lines and the neutral of the system change as the loads vary.

This learning object describes the production of an alternating current in a generator with a single-loop armature. An illustration of how a sine wave is produced is shown through animation.

In this interactive object, learners vary the value of the resistance to see how it affects current. Example problems are included.