Test your skills at reading a ruler.
The Induction Motor Slip
By Terry Bartelt, Terry Fleischman
In this animated object, learners examine how the rotation of an induction AC motor's armature slips behind the synchronous rotational speed of the stator's field to create magnetic fields. These fields interact and produce torque. A quiz completes the activity.
Lathe Cutting Speeds - RPM Calculations
By Kelly Curran
This document is a visual and text description of lathe cutting speeds and RPM calculations.
How Small Is a Millionth of an Inch?
By Barbara Anderegg
In this learning activity you'll determine the measurement to be made and the accuracy required.
Calculating Cutting Speeds for Twist Drills
By Dave Hoffman
Students view the formula for determining twist drill speeds in metal. Exercises complete the activity.
Everyone Knows How to Use a Ruler, Right?
Students review the best practices for using a ruler and answer five basic questions.
Reading a Decimal Steel Rule
You'll learn to read a decimal steel rule.
Vernier Reading Review
You'll practice specifying the correct measurement for the vernier caliper.
Unit Conversion in the Metric System: Area
You'll practice converting units of measure for area in the metric system.
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