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In this interactive object, students view an animated depiction of Class 2 levers. A matching quiz completes the activity.
Weight- Volume Relationships: Porosity
By Steve Whitmoyer
Students read how to determine and calculate the porosity for a given sample of soil or aggregate, based on the weight-volume relationship.
Calculating Belt Length
By James Bourassa
Learners follow steps to determine the proper starting belt length for a timing, flat, or v-belt drive.
Weight-Volume Relationships: Saturated Unit Weight
Students read how to determine and calculate the saturated unit weight for a given sample of soil or aggregate, based on the weight-volume relationship. Practice problems complete the activity.
Parallel Circuit Analysis Practice Problems: Circuit #8
By Patrick Hoppe
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.
How Pressure Changes Boiling Temperature
By Terry Bartelt, Terry Fleischman
Learners study the effect that pressure has on boiling temperatures. Once a liquid has reached a full boil, additional heat does not raise the liquid’s temperature; however, pressure can vary the boiling point of a liquid. A brief quiz completes the activity.
Identifying Lever Classes
In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.
Calculating Horsepower, RPM, and Torque
By James Bourassa, John Rosz
In this animated and interactive object, learners examine the formula for horsepower and work practice problems.
Orthographic Projection #1
By Glenn Sokolowski
In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.
Brain Exercise: Visualization #1
In this interactive object, learners practice their 3D visualization skills by identifying the correct isometric view of an object. Front, side, and top orthographic views are shown.
Engine Lathe Construction
You'll practice identifying the major components of an engine lathe.
Review for the physical science test on Newton's laws.
Unit Conversion in the Metric and English Systems: Length
You'll practice converting between units of measure for length in the metric and English measurement systems.
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