KNPB
Log In

Grades

Subjects

Info

Grades

3-12

Accessibility

Auditory, Visual

Permitted Use

Stream, Download, Share, and Modify


Part of

WGBH

0 Downloads

119 Favorites

1929 Views


Galileo on the Moon

Galileo used thought experiments to test many assumptions, including the notion that heavy objects fall more quickly than lighter objects when they are dropped. Lacking access to either a vacuum chamber or a planetary body that has no atmosphere, he nevertheless correctly predicted that all falling objects would accelerate at the same rate in the absence of air resistance. In this video segment from NASA, astronaut David Scott demonstrates the correctness of Galileo's prediction.

Contributor:
Funder:
Producer: