Students read about the four steps to creating an ac model and view examples.

The operation of a hydraulic brake valve, including the internal components, is presented using animations.

Learners examine the electronic components of a digital thermometer.

Learners read how to determine the location of a contour for a specific location given a TIN.

Students read a step-by-step approach on how to connect a voltmeter to a circuit when making a measurement.

Students examine the procedure to measure current with an analog ammeter. The use of Function and Range switches is explored along with reading the needle position on the meter scale. A brief quiz completes the activity.

In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. A quiz completes the activity.

Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.

In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.

Review Graphing Vocabulary. The last two questions use a graph found here: https://goo.gl/z3K9CA

You'll be introduced to switching within text files and using regular expressions.

You'll practice defining terms related to spheres and identifing parts of spheres.