Data Page: Spark Tape Point Distance (cm) Velocity (cm/s) Time (s) 1 0.6 cm 35.92 cm/s 0.0167 2 0.8 cm 47.9 cm/s 0.0334 3 1.1 cm 65.86 cm/s 0.0501 4 1.4 cm 83.83 cm/s 0.0668 5 1.8 cm 107.78 cm/s 0.0835 6 2 cm 119.76 cm/s 0.1002 7 2.2 cm 131.73 0.1169 8 2.5 cm 149.70 0.1336 9 2.8 cm 167.66 0.1503 10 3.1 cm 185.63 0.1670 11 3.4 cm 203.59 0.1837 12 3.6 cm 215.54 0.2004 13 3.8 cm 227.5 0.2171 14 4.1 cm 245.5 0.2338 Average Velocity: 141.94 cm/s Average Time: 0.125 s Percent Error: 3.26% error Acceleration: 978.71 cm/s2 Object: The primary goal of the experiment is to analyze the acceleration of a falling body that has been affected by gravity. Apparatus: Free-Fall Apparatus Meter Stick Diagram: Theory: Gravity has been discussed for many centuries and it was the Greeks that noticed what the effects of gravity. Many Greek philosophers believed that the planets and stars were part of gods’ realm and that they followed a certain motion (Stanford). It was not until Sir Isaac Newton that gravity was discovered as a part of the motion of the planets. Because Newton’s law of gravity was not disproven, it was considered to be a scientific law. It was until years later that a new theory for gravity was made by Albert Einstein. According to Albert Einstein, gravity is the result of the “warping of space and time (Stanford). Despite all of these improvements, one thing remains the same: the acceleration of gravity and its effect on free falling objects. A freely falling object is an object that only falls under the influence of gravity. The parameters of a freely falling object can be defined as length/distance, time, speed, velocity and acceleration. Velocity is the speed and direction of a traveling object. To find the spe... ... middle of paper ... ...s" Velocity 13: 3.8/.0167=227.5 "cm" /"s" Velocity 14: 4.1/.0167=245.5 "cm" /"s" Percentage Error: (979.9-947.95)/979.9*100=3.26% Conclusion: In this experiment, we analyzed the effects of gravity on a free falling object, and determined the velocity and acceleration of the object through means of different formulas. As we analyzed our data, we noticed that the velocity increased between the different distances. After plotting the graph of the acceleration, we compared the acceleration of the object to the acceleration of gravity; the measurements we achieved were very close to the actual value as our percent error was 3.26%. This means that we finished the experiment with accurate results and understanding if the subject. Works Cited Thompson, H., & Havern, S. (n.d.). Gravity. Gravity. Retrieved April 12, 2014, from http://www.stanford.edu/~buzzt/gravity.html
Also, the equations for Potential energy and Kinetic energy are stated to get the Total Energy. They are respectively:
The key idea of General Relativity, called the Equivalence Principle, is that gravity pulling in one direction is completely equivalent to an acceleration in the opposite direction. (A car accelerating forwards feels just like sideways gravity pushing you back against your seat. An elevator accelerating upwards feels just like gravity pushing you into the floor.
The first record of the movement of the planets was produced by Nicolaus Copernicus. He proposed that the earth was the center of everything, which the term is called geocentric. Kepler challenged the theory that the sun was the center of the earth and proposed that the sun was the center of everything; this term is referred to as heliocentric. Kepler’s heliocentric theory was accepted by most people and is accepted in today’s society. One of Kepler’s friends was a famous person named Galileo. Galileo is known for improving the design and the magnification of the telescope. With improvement of the telescope Galileo could describe the craters of the moon and the moons of Jupiter. Galileo also created the number for acceleration of all free falling objects as 9.8 meters per second. Galileo’s and Kepler’s theories were not approved by all people. Their theories contradicted verses in the bible, so the protestant church was extremely skeptical of both Galileo and Kepler’s
The first thing my group did was confirm our method of taking data and who would be doing it as well as defining out independent and dependent variables. Since we would be directly controlling the net force we made that our independent variable which left the acceleration as our dependent variable because it was a factor that varying as a result of our net force. We weighed our cart with every single mass in it along with the string and the hook which turned out to be 1.97kg. We did not add anything else to our system after this to keep the mass of the whole system constant. Our setup was like this: a ramp was sitting on top of the table, parallel to it so it had no slant. On one end of the ramp, a pulley was attached. On the other side of the ramp, a motion sensor was set up so it faced directly down the path of the
The dependent variable that will be measured is the height at which the ball bounces back. The control variables that will need to be kept constant if the results are to be as accurate as possible are. 1. What is the difference between a. and a. The weight of the ball; we will use the same ball throughout the experiment to ensure that the results are as accurate as possible.
This object of the experiment was to demonstrate the average distance the ball traveled when shot from the spring gun. The test was used to show how the angle of elevation and initial velocity will affect where the ball is estimated to land. Using data collected on average distance found in part one of the experiment, you were then able to calculate time, when y=0 and yo= the distance from the spring gun to the floor, for part one using the equation Y=Y0+V0yT+1/2at2 (equation 1). Next, by using your average x you could calculate v0 using xavg = v0cosθt= v0 t (equation 2). Then, using the same v0 in part 2 you solve for t using equation 1 and then find xtheo using xtheo=v0cosθt (equation 3). Lastly, measure X, and find the average and then compare xtheo to xavg using | xavg-xtheo/xtheo | x 100 (equation 4).
An object that is falling through the atmosphere is subjected to two external forces. The first force is the gravitational force, expressed as the weight of the object. The weight equation which is weight (W) = mass (M) x gravitational acceleration (A) which is 9.8 meters per square second on the surface of the earth. The gravitational acceleration decreases with the square of the distance from the center of the earth. If the object were falling in a vacuum, this would be the only force acting on the object. But in the atmosphere, the motion of a falling object is opposed by the air resistance or drag. The drag equation tells us that drag is equal to a coefficient times one half the air density (R) times the velocity (V) squared times a reference area on which the drag coefficient is based.
...other example would be be if he took a step larger than he normally would. While his foot is still in motion, you sweep his foot in the direction of his advance. In doing this, he will drop because gravity will be acting directly on him in downwards direction.”(2)
Gravity is defined as the force of attraction that causes objects to fall toward the center of the earth(“Gravity”). Without gravity, the world that we know would not exist. Gravity is the reason why objects are on earth and not floating in space. Although some discoveries have been made about gravity there are still numerous unanswered questions. There are several scientists who are well known for their contribution to science, these scientists include Aristotle, Galileo, Kepler, Newton, and Einstein. Over a course of several hundred years, scientists’ views about gravity has changed. No one really understands how gravity works, but people have learned about the effects of gravity. It started off with a philosophy point of view, and it then moved to a scientific methodology view, and then to scientific theory view.
To investigate the affect the material of a ball has on the bounce height of that ball where the drop height (gravitational potential energy), temperature, location, ball, and air pressure of the ball are kept constant.
Firstly we shall look upon the formula that shows how acceleration is 'supposed' to occur.
In the first Unit of class we talked about motion in one dimension, but in this unit we talked about motion two dimensional. One example of a two dimensional motion is projectile motion. Projectile motion is when an object has an initial force that is applied to it to begin its motion. After the object starts its motion there is no longer a force that is being applied. At this point in time The only two forces that are acting on the object the first one and that largest one is gravity. The second force is normally neglected, when doing a projectile calculation. This small force is air resistance and causes the object
I have come to these predictions using scientific knowledge. The heavier something is, the faster they fall, so I decided to base my first prediction on this fact. I based the second hypothesis on the parachutist example in my introduction.
Gravity is the force that pulls two objects together, and the mass of the human body depends on gravity. The more the mass there is, the amount of the gravitational force will increase. The study of the Earth’s gravitational field itself is complex and deeply fascinating. Likewise, studying its relation to the human body makes it even more thought provoking. A gravitational field is simply the area of space neighboring a body that has another body experiencing a gravitational attraction force. As human beings and just general species, our state in Earth is not the same as it is up in the atmosphere or another planet. Unfortunately, the term “gravity” is thrown around futilely these days, but in this essay you will learn its purpose in our Earth, and all the notions that go along with it.