Learners read an analogy comparing an electrical transformer to mechanical gears.
How Adding Parallel Branches Decreases Total Resistance
By Terry Bartelt
In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.
Parallel Circuit Analysis Practice Problems: Circuit #7
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.
Parallel Circuit Analysis Practice Problems: Circuit #3
Statics - Trig: The Pythagorean Theorem
By Steve Whitmoyer
In this interactive object, learners use the Pythagorean Theorem to calculate forces.
Financial Statement Analysis
By Lynette Teal
Learners read the definitions of working capital, current ratio, quick ratio, return on equity, accounts receivable turnover, and inventory turnover.
The Reflected Load in a Transformer
Learners examine how the load resistance connected to the secondary coil of a transformer affects the primary current. A brief quiz completes the activity.
Transformer Action Demonstration
Learners view animations and video clips showing how power is transmitted from one energized coil to another.
Transformer Practice Problems
Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.
The Magnetic Circuit
Learners compare electromagnetic quantities with the voltage, current, and resistance quantities of an electrical circuit. A brief quiz completes the object.
Ratio Review Game
This math review game is focusing on ratio and percent problems. This is to help prepare for the 6th grade math EOG.
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