Physics 211 Experiment 1: Free Fall - Determining the acceleration of gravity

Prior to Lab: Derive the numbered equations (Equations 1, 2 and 3) in the lab instructions using the definitions of velocity and acceleration (a=dv/dt and v=dy/dt).

Object: The object of this experiment is to determine the value of the acceleration of gravity by measuring the rate of acceleration of a freely falling object. In addition, one will be able to compare theory with experiment for constantly accelerated motion.

Discussion: An object dropped near the earth’s surface will accelerate uniformly with the acceleration due to gravity (g) toward the earth. The magnitude of g at the Berks Campus is 9.801 m/s2. Thus according to the equation describing motion for a uniformly accelerated object, its position y as a function of time t is [pic](1)

where down is assumed to be the positive direction and its initial position is at the origin of the coordinate system used. A graph of this equation would yield a parabolic curve as shown in the example below.

The speed can be determined from the equation (1) by differentiating the displacement equation with respect to time yielding [pic](2)
which when graphed is the straight line as shown
[pic]

where the y-intercept is the initial speed vo and the slope of the line is the acceleration g.

|[pic] [pic] |Apparatus: The experiment makes use of the Behr Free Fall | | |apparatus shown at the right, a dc source to power the | | |electromagnet needed to hold up the falling object (plummet) and | | |a high voltage spark generator to mark the spark tape every 1/60 | |...

...Measurement of Free-FallAcceleration
Introduction
Galileo Galilei (1564-1642), the man first accredited with the correct notion of free-fall with uniform acceleration, stated that 'if one were to remove entirely the resistance of the medium, all materials would descend with equal speed.' Today, this statement holds true for all objects in free-fall near the Earth's surface. The...

...Calculating for acceleration due to gravity using a picket fence in freefall
R. Cajucom, J. Suarez, and J. Villanueva
Performed 9 September 2015; submitted 16 September 2015
Abstract-Limit the abstract to four to five sentences stating the following: (a) statement of the problem, (b) methodology, (c) pertinent results, and (d) conclusion. Avoid numbers and symbols in the abstract.
After you have written the abstract, write...

...FreeFallMethods Investigation
Aim
I am going to use three different methods in which I will find the value of gravity (g). Then I am going to compare all three methods to see which is the best. The three experiments will be
- Pendulum
- Spring
- Electronic timer
Background Research
Freefall
Is motion with no acceleration other...

...Freefall and the acceleration due to gravity
Problem/Question: How do you measure the acceleration of a falling object?
Hypothesis: by measuring velocities of a falling ball then applying the data into equations numerous times, the results should approach to the acceleration.
Variables: A: Independent Velocity
B:Dependant Acceleration...

...Measuring the Acceleration of FreeFall
•Aim: To test the validity of the equation of motion and obtain a value for g
•Equipment: A ball, ruler, a stopwatch
•Principle: sf = si + ui*t + ½at2
•Process:
1. Time how long the ball takes to fall from a maximum possible height. Record your result.
2. Repeat the measurement multiple times in order to obtain a more accurate result.
3. Repeat the experiment for several...

...purpose of this experiment is to verify the acceleration due to gravity using the picket fence with a photogate, LabPro and LoggerPro software by measuring it with a precision of 0.5% or better.
Theory:
All objects, regardless of mass, fall with the same acceleration due to gravity assuming that there is no air resistance. Objects thrown upward or downward and those released from rest are falling freely...

...Abstract
In this experiment Newton’s Second Law of Motion was measured with the use of the gravitational acceleration g on Earth by applying a freefall process.
Objective
The objective of this experiment is to validate Newton’s Second Law of motion. In experimenting the Law the measurement of acceleration of gravity was used by measuring the distance a dropped ball travels for a...

...this experiment is to measure acceleration on a freely falling object assuming the only force acting on the object is gravitational force.
Theory
All dense objects in freefall have the same acceleration, which is known as the acceleration due to gravity. The value of acceleration due to gravity is approximately 9.80 m/s2. In this experiment, a...

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