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Concepts:
Weight is a result of gravity acting on an object. Mass is the quantity of matter in an object and responsible for its inertia.
Summary:
The concept of mass invented when it is shown that gravity cannot account for the decreased oscillations of the balance when more weight (actually mass) is added.
Lab Source:
Inquiry Physics Investigation 6 Lab A
Objectives Links:
III. E: Laws of motion
Process Skills Checklist
Equipment:
- inertial balance
- masking tape
- 250 g cylinder
- 500 g mass
- blank paper
- clock or stopwatch
Safety Concerns:
The 500 g mass must be taped into the balance securely to prevent it from falling out and possibly causing injury.
Revision Date:
Fall 1999
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