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Obtain two balls of different sizes and mass, perhaps a tennis ball and a basketball. Place the tennis ball directly on top of the basketball. Release both balls simultaneously from approximately waist high. What do you think will happen to the tennis ball?

This activity was developed by Jacqueline Slay, Largo High School, Largo, MD

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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Acting Project Leader: Dr. Barbara Mattson
All material on this site has been created and updated between 1997-2012.

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