Testing What Happens If You Jump On A Moving Train

From Mark Rober

Testing What Happens If You Jump On A Moving Train
18 min4th5th6thScience
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Summary

Mark tests the movie myth of jumping straight up on a moving train (or vehicle) and whether you land in the same spot. He runs real experiments to show how motion you can't feel still affects you.

Viewer safety

Ages 7+

Made for a general YouTube audience — an occasional mild or bleeped word can slip in, so preview if your classroom bar is strict.

Our rating is a quick teacher-to-teacher guide — preview before showing.

Teaching resources

Discussion questions

Talk about it

When everything around you moves together at a steady speed, you move with it — even in the air for a moment. That shared motion is why you land in nearly the same spot.

  1. Why do you land in almost the same spot when you jump inside a moving vehicle?
  2. What did Mark change between tests to make the myth easier to see?
  3. How is riding smoothly at a steady speed different from speeding up or stopping fast?

Quick work-a-long

Vocabulary: motion, steady speed, force, frame of reference.

Try it: Next time you ride in a car at a steady speed, gently toss a soft object straight up (if it's safe). Where does it land? Write why.