Learners study the theory of operation for a ratio pyrometer that measures temperature. A short quiz completes the activity.

In this interactive object, students calculate inductive reactance, impedance, current, and power in parallel RL circuits.

Learners view the steps to find the complex conjugate of a number in polar form using a TI-86 calculator.

In this interactive object, learners solve a series-parallel DC circuit analysis problem. Immediate step-by-step feedback is given.

Learners consider why an impedance matching transformer is needed to connect an antenna to a television.

In this animated object, learners examine processes that do not use ATP directly including hydrostatic pressure and facilitated diffusion with carrier proteins.

In this animated and interactive object, learners identify the valves and chambers of the heart.

In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.

In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid.

Show everyone how much you know about heat and heat transfer by solving these 7 Terms!

You'll be introduced to commonly used acronyms within the computer industry.

How well do you know your air brake parts?