Push, pull and move

Compare forces, mass, inertia and the paired pushes between objects.

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1. 1

   Can balanced forces act on a moving object?

   Compare two cart trials: one starts still and one starts moving. Do equal pushes change either cart’s motion?

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2. 2

   How do force and mass change acceleration?

   Measure an ideal cart’s acceleration while varying net force and mass independently.

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3. 3

   Why does a moving object not always need another push?

   Compare an ideal free cart with a cart slowed by an opposing force.

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4. 4

   What sets the stopping distance of a sliding object?

   Compare initial speed and ideal kinetic friction on a level surface.

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5. 5

   Why can equal pushes produce different motions?

   Separate the two objects in an interaction and compare their recoil.

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Each discovery includes all five reading levels. Journey progress reflects the checkpoints answered on this browser.

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