Summary
Human-powered machines: the SciGirls engineer contraptions run entirely by pedaling, connecting how hard and fast you push to how much energy comes out the other end.
Viewer safety
Ages 7+
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Teaching resources
Discussion questions
Discussion
Full episode (28 min) from SciGirls, season 2.
- What happens to the output when you pedal faster?
- Where does the energy come from before it reaches the machine?
- What would you power with pedals if you could?
Quick work-a-long
Vocabulary: energy, transfer, speed, machine.
Try it: List three machines in your home that use electricity. Pick one and describe how you'd power it with pedals instead.