CHEM 1R03 Lecture Notes - Lecture 5: Bowling Ball, Contact Force, Net Force

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1R03
• Professor: Doug Mc Callion

Document Summary

You have a specific mass regardless of where you are located (m = dv). Your weight is defined as the force of gravity on the mass. Earth is pulling you down, so you squeeze the scale forcing it to take a reading. The larger your weight, the larger the squeeze. earth will pull your mass with a certain amount of force. This is why your weight is different on the moon compared to earth or any other planet. In physical terms, we call weight the force of gravity on an object. It is defined as follows: where: fg is the force of gravity (measured in newtons, n) mg. Unit analysis: m is the mass of the object (measured in kg) g is acceleration due to gravity (measured in m/s2) The symbol g is called acceleration due to gravity. on earth, it is equal to 9. 81m/s2.