Sometimes it's easier to see the laws of physics when experiments are done in zero gravity.

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Equals and opposites.

Firework rockets and space rockets - they both depend on the law of equal and opposite.

Sometimes it is easy to see the laws of physics when experiments are done in zero gravity.

SImple toys are often based on some fundamental piece of physics.

Have a look at some or all of these movies - they each show different aspects of forces and movement. You can just watch the movies or use the controls to delve a bit deeper.