The Mathematical Expression of an AC Sine Wave As a Function of Time: Practice Problems

Students view the mathematical expression of a sinusoidal waveform with respect to time (t) and solve five problems. The answers are provided so students may check their work.

In this animated object, learners examine the types of information to enter, and the sequence of steps required, to program a programmable logic controller (PLC) timer.

In this screencast, you'll observe two vehicles moving across the screen at different rates then describe the motion. Additionally, you'll select the corresponding graphs of distance vs. time, velocity vs. time, and acceleration vs. time for each vehicle.

Learners study animations showing the integral function of a closed-loop control system and the difference between the two types of integral controller settings, reset rate and reset time. A short quiz completes the activity.

Instantaneous Voltage Calculations of a Charging RC Circuit (Calculator TI-35X orTI-36X)

Learners view a sample of the keystrokes from a TI-35X or 36X calculator that are required to solve for the instantaneous voltage of a charging RC circuit.

Instantaneous Voltage Calculations of a Discharging RC Circuit (Using a TI-30XIIS Calculator)

In this animated object, learners view the keystrokes on a TI-30XIIS calculator that are required to solve for the instantaneous voltage of a discharging RC circuit.

Instantaneous Voltage Calculations of a Discharging RC Circuit (Using a TI-35X or a TI-36X Calculator)

In this animated object, learners view the keystrokes on a TI-35X/36X calculator that are required to solve for the instantaneous voltage of a discharging RC circuit.

Learners answer questions from a game board with the headings "Pituitary," "Thyroid," and "Adrenal." Up to three people can play at one time. Contestants "buzz in" their answers to accumulate points.