Learners study an animation of a spring-and diaphragm actuator controlling the opening of a flow valve.

Learners follow the seven steps involved in the lockout/tagout procedure. This activity has video content demonstrating the safety measures.

Students read an explanation of "superposition" as a technique for ac circuit analysis. Complex numbers are used.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a series RLC circuit when the applied frequency is increased from 0 Hz towards resonance.

By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a series RLC circuit when the applied frequency is increased above resonance.

By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a parallel LC circuit when the applied frequency increases from 0 Hz toward resonance.

By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a parallel LC circuit when the applied frequency is increased above resonance.

In this animated object, learners observe the voltage on a capacitor at various time constants when it either charges or discharges. Students then answer questions in the categories of Identify, Compare, and Compute.

To help the student learn the 3 branches of government

Terms on Connected Graphs and Euler Paths

Civics review: Levels of Government & 3 Branches of Gov.

Use the clues provided to complete the crossword puzzle with the appropriate words.