Physics lab 5 – PHYS 111.docx

Physics lab 5 – PHYS 111.docx - Physics lab 5 PHYS 111...

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Physics lab 5 – PHYS 111 Fall 2017 Acceleration Due to Gravity Mary Hoover with Stuart, Trent & Alex Performed: October 11, 2017 Submitted: October 18, 2017 Instructor: George J. Repicky Abstract

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Newton’s Second Law states that if a net force is applied to an object, the object accelerates [1]. Multiple trials were performed, on two sizes of Air Track gliders, with three different weights to examine Newton’s Second Law. The trials confirmed that acceleration is directly proportional to the net force and is inversely proportional to the mass being accelerated as predicted by Newton’s Second Law. Discussion The objectives of this lab are to 1) examine Newton’s Second Law of motion, and 2) to enhance the understanding of the relationship between net force, mass, and acceleration. One way to study the relationship between acceleration, net force and mass is to use an Air Track which removes nearly all measurable friction from the environment. Remembering that Newton’s Second Law of Motion also states that acceleration can only occur if there is net external force on an object, gliders were used, and trials were conducted using 5, 10 and 15 gram weights. Calculations used in analysis 1. Theoretical Acceleration Theoretical Acceleration = Accelerating Force Accelerating Mass Example: Theoretical Acceleration = 4900dyn = 15.83 cm/s 2 309.5g 2. Experimental Acceleration Experimental Acceleration = 2 x distance Time 2 Example: Experimental Acceleration = 2 x 106.8cm = 213.6cm = 16.21cm/s 2 3.6300 2 13.1769 3. Deviation Experimental Acceleration – Theoretical Acceleration
Example: 16.21cm/s
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• Fall '14
• George Repicky

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