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Middle School

Forces and Interactions

Mass of Falling Objects

Lesson Description:

In this lab you will determine how the mass of an object affects its movement toward Earth. As an object falls freely, its speed increases. This change in speed is called acceleration. The experiment shows various objects being dropped from a pier onto the sand below. By measuring the position of each object at each video frame during its fall, you will be able to compare the behavior of various objects. Each object has a different mass because the objects are not the same size and they do not have the same density. By comparing the falls of the objects, you will determine how mass changes the way an object falls.