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Lab Report; Centripetal Force and Speed
The force which pulls an object toward the center of a circle is called centripetal force. How
much centripetal force needs to be exerted to cause an object to move in a circle? Your
experience should tell you that the amount of centripetal force that you need to exert depends on
the mass of the object you are whirling, how fast you are whirling it and the radius of the circle.
We will use an apparatus similar to the one pictured below to measure the effect of speed on
centripetal force. You can hold the mass constant during a set of trials by always whirling the
same object. You can keep the radius of the circle constant (with a little practice) by keeping the
upper clip a fixed distance below the tube while whirling the object.
Objectives:
1. The student will investigate the relationship between the speed of an obj...