Learn Investigate nonlinear motion and power trade-offs by inspecting quantities with units.
Start with everyday situations, predict an outcome, and test your ideas. You need basic arithmetic, percentages and graph reading; explanations introduce additional ideas where needed. No coding or account is required. Every investigation has school, college and workplace extensions—you can choose any of them.
Use motion, circuit and energy models to compare feasible designs, inspect feedback failures and choose measurements that distinguish faults.
Open any topic directly. Review functions and graphs whenever useful.
The original two-investigation starter remains available. Choosing the full course adds its published lessons to your selected scope; your earlier work stays saved. Skipping does not count as completion or understanding.
Free exploration: no completion scope selected yet. Project reports and independent evidence are tracked separately.
Choose a unit, then open a lesson on its own page. This outline lists the sequence; it does not combine the full lessons into one page.
Separate motion components and distinguish target accuracy from feasible operation.
○ Not marked complete · Included · Practice check available
Which part of stopping distance grows fastest with speed?
Original synthetic motion model: an object moves at constant speed during a response delay, then slows with constant deceleration.
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Can two trajectories reach similar distances but have different feasibility?
Original synthetic scenario. A virtual projectile launches and lands at the same height. Gravity is set to 10 m/s² to make arithmetic inspectable.
Account for useful and wasted power, thermal storage and complementary fault measurements.
○ Not marked complete · Included · Practice check available
Can drawing more current make a power source less effective?
Original synthetic circuit: an ideal voltage source has a series internal resistance and supplies one resistive load.
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What changes warm-up time, and what changes eventual temperature?
Original synthetic scenario. A virtual object starts at ambient 20°C. Constant heating supplies energy while heat leaks in proportion to its temperature above ambient.
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Does a low loaded voltage identify a unique problem?
Original synthetic scenario. A virtual circuit may be healthy, have lower source voltage, or have excessive internal resistance. A shared meter offset can affect both voltage readings.
Tune a programmed controller while testing delay, actuator limits and disturbance sensitivity.
○ Not marked complete · Included · Practice check available
How do gain and delayed sensing affect a controller?
Original synthetic scenario. A virtual position controller targets 10 m. Each step applies a bounded movement, then a constant negative drift.
Choose a virtual motion, power or heating design and specify a target plus a binding constraint. Compare alternatives, deliberately introduce a failure or disturbance, and justify a diagnostic or control change using captures from at least two experiments. This is a model-based design review, not authorization to operate physical hardware.
Save a report, compare captured evidence, and attempt three new cases. A completed report records submitted work; the rubric supports a separate human review of its quality.
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