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In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.

Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.

Learners attach an egg to a rubber-band bungee cord and drop the egg.

In this activity, learners determine the elastic and plastic properties of different types of metal wires.