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Uky Free Fall Lab 1 Essay

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PHY 211-004
Experiment 1
Date Performed: 09/17/2009
Date Due: 10/01/2009

Experiment 1: Free Fall

Principle Investigator: Erin Winstead_____________________________

Researcher: Ryan Timmons ______________________________

Skeptic: Abby Bryant ______________________________

TA: Zheng Zhu

Role | I | DC | AD | RC | Q1 | Q2 | PI | PG |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |

I-Introduction
DC-Data and calculation
AD-Analysis and discussion
RC-Results and conclusion
Q1/Q2-Quiz/prelab
PI-Principal investigator points
PG-Personal Grade

Introduction

Administrative Information

Free Fall is defined as, “the motion of a planetary body such that the only force acting upon it is that of gravity.”   Gravity is the force of a terrestrial body as it pulls an object toward its center of earth.   The average or constant acceleration on Earth due to gravity is 9.8m/s2.   In this experiment, we studied free fall motion in a 1-dimensional direction.   Since gravity is the only force acting on the object, a steel ball in this experiment, the ball will attain a constant acceleration, meaning both the balls magnitude and direction remain the same throughout the period of observation. When an object demonstrates a constant acceleration, the velocity of the object will change either increasing or decreasing with the same rate while traveling in the same direction.   During this experiment, we used the equationH=12gt2 .   From this equation, h denotes height, g represents acceleration due to gravity (9.8 m/s2), and t stands for time. The variables in this equation are all accounted for with the exception of g. The height is the distance from the bottom of the ball to the top of the pad (measured in meters).   The time (t) corresponds to how long it took the ball to travel after being released from the clip to the pad (measured in seconds).   This will be determined by the use of the “Free-Fall Application” provided...

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