This website uses cookies to ensure you have the best experience.

# Experiment #2: Forces Essay

8594 words - 34 pages

1. ObjectiveThe objective of the second experiment of the PH1004 laboratory course is broken down into two parts. In part A, the aim is to determine the acceleration due to gravity of a glider, which runs along a straight line on an air track. A weight will be connected to the glider by a string draped over a pulley to create the necessary acceleration. To understand why objects accelerate, force and mass must be defined. A force can either distort or accelerate an object. When calculating a total force on an object, it is necessary to add the forces as vectors. Newton's first law of motion states that, if the vector sum of the forces acting on an object is zero, then the object will remain at rest or remain moving at constant velocity. Thus, the tendency of an object to resist any attempt to change its velocity is called inertia. Newton's second law of motion states that a net force on an object will accelerate the object at a rate proportional to the strength of the force and in the same direction as the force. Thus, one can relate mass, acceleration, and force through the following mathematical statement of Newton's second law:∑F = maThe attractive force exerted by the Earth on an object is called the gravitational force Fg. This force is directed toward the center of the Earth. The association between the glider's acceleration due to gravity, g, is provided for by the following expression:Aa = (m/(m + mgl)) * gThe value of acceleration, a, will be computed by utilizing photogates placed above the air track to measure the time intervals of the glider's motion between distinct points.In part B, the intention is to gauge the acceleration due to gravity of a glider, which runs along a tilted air track. Similarly, this value will be attained by measuring the instantaneous velocity using two photogates to calculate two time intervals from three distinct glider positions. The acceleration due to gravity can be determined from the measured elevation of the track and the acceleration of the glider by the following expression, in which the angle of elevation is represented by θ:sin(θ) = |h2 - h1| / |X2 - X1| and g = a/sin(θ)2. Raw Data TablesPart A Variables Symbol Description Measurement ToolXG1 Position of photogate G1 Meter StickXG2 Position of photogate G2 Meter StickXb The coordinate when the beam of G1 is just blocked by the flag Meter StickXub The coordinate of the right edge of the glider when the beam of G1 is just unblocked Meter Stickmgl The mass of the glider Scalem The mass of the hanging weights ScaletbG1 The time when the G1 beam is interrupted by the flag of the glider Photogate, ComputertbG2 The time when the G2 beam is interrupted by the flag of the glider Photogate, ComputerSeries 1 ...

## Find Another Essay On Experiment #2: Forces

### Physics Essay

759 words - 4 pages , and if they have the opposite signs, they will attract. Also, Coulomb's constant has the value of about 8.98 x 10^9 (N • m^2) / C^2 Ernest Rutherford contributed to the Planetary Model of the Atom because he originally thought atoms were just filled with empty space, but he tested this theory with his Gold Foil experiment in which proved it wrong. This experiment confirmed the existence of a nucleus inside the atom, not just electrons covered

### surface texture and friction Essay

738 words - 3 pages that as surface texture increases, friction increases . However as you repeat the experiment the sandpaper gets worn down and so there will be increasingly less friction between the sandpaper and cardboard. There are 2 anomalies in the experiment, between the 150 and 360 grade of sandpaper. This could be due to the use of circular weights in the experiment and the weight could have shifted and applied more/less pressure on the sandpaper which

### Spiral of Silence

1749 words - 7 pages affects whether or not the person will speak up about a certain topic. When certain groups have to keep secrets from other groups for safety reasons, this does not help the silence situation at all. The fact that groups are keeping secrets from others means that they do not trust anyone else which forces groups into silence and they cannot voice their opinion anymore. The Spiral of Silence has a key voice in the workplace, which involves the use of

### An Investigation into the Enthalpies of the Combustion of Alcohols

5145 words - 21 pages An Investigation into the Enthalpies of the Combustion of Alcohols ================================================================== Planning My aim for this experiment is to see the energy produced from different alcohols. This investigation involves burning alcohol in the air. ‘GCSE Chemistry’ by B.Earl and L.D.R Wilford says that "alcohols form, another homologous series, with the general formula Cn H2n+1OH ". The alcohol reacts

### The Contributions of Isaac Newton

1019 words - 4 pages that it is refracted on entering or leaving a given translucent medium. Newton also correlated this experiment with his study of the interface of colors on thin films, such as oil and soap bubbles. He used a simple technique of measuring the thickness of each film used (2). This experiment of optics and light were widely unaccepted by many scientists. Newton'sexperiments were thought to be unconventional because they went against the previous

### How Do Activated Carbon Water Filtration Systems Work And What Is Their Capacity To Purify Water?

4706 words - 19 pages remaining disinfectants and organic material. Also, since the temperature was constant throughout the entire experiment, it leads to better and more precise results.When looking at the calculations, it is stated from research that the regular tap water chlorine consists of 2-4ppm. The water resource used contained a bit more chlorine than what was suppose to be the result. The result of this could have possibly consisted some errors which are

### Practical Write up of Centripetal Force

1139 words - 5 pages the different centripetal forces are measured and the results plotted on a graph.Aim:To investigate the relationship between the centripetal force acting on an object moving in a circle of constant radius and its frequency of revolution.Materials:Thin PVC pipe (20cm long, no sharp edges)1.5 m length of stringAlligator clipLarge 2-hole rubber stopperMass carrier and slotted masses (50 g each)StopwatchMetre rulerGraph paperMethod:1. One end of the

### The Battle of Fallujah

1857 words - 7 pages of the U.S. weapons, training, and supplies to the insurgency. Coalition Forces did use the Fallujah Brigade experiment as an opportunity to discover who the key players were in the Fallujah insurgency ranks. In November 2004, Operation Al-Fajr began with the objective of seizing control of Fallujah city for the Iraqi government. The Coalition Forces comprised of approximately 15,000 personnel, while the insurgents had about only 4,000 – 5,000

### Research: Passing a Metal Ball Through Viscuous Liquids for Velocity Check

907 words - 4 pages resistance creates a counter force that makes the swimmer learn how to exert energy more efficiently. A great deal of thought has been focused on recreating this drag effect by proposing a non-harmful liquid that can recreate this drag effect. This non-harmful liquid would have similar frictional properties of viscous liquids. This experiment will entail testing the frictional forces of different viscous liquids such as water, syrup, olive oil and

### Combustion Of Alcohols

2233 words - 9 pages Combustion Of AlcoholsPlanningThis investigation involves burning alcohol in the air. Key science- Chemistry by Eileen Ramsden says that " an alcohol is a series of organic, homologous compounds, with the general formula Cn H2n+1OH". The alcohol reacts with the oxygen in the air to form the products water and carbon dioxide:Cn H2n+1OH +(n+n/2)-1O2 ? nH2O + nCO2The structure of the molecules in this reaction is:H H | | H - C - C - O- H + 3[O=O

### Physics poster on the motion of a pendulum - Physics 1/2 - Poster

1129 words - 5 pages There are 2 main forces acting upon the mass or bob of pendulum at all times- gravitational force, which is always perpendicular to the horizontal, and tension force, which acts towards the fixed point from which the bob oscillates. Apart from the forces of gravity and tension acting on the pendulum, there are also two others. One is the perpendicular component of gravity, which is directed perpendicular to the arc and opposes the direction of

## Similar Essays

### Relations To Pasteur’s Experiment Essay

656 words - 3 pages container due to the s-tube; bacteria cannot “fly” is falls and travels with opposing forces. Four other scientists’ discoveries or tests relate to this experiment, Francesco Redi, Lazzaro Spallanzani, John Needham, and Anton van Leeuwenhoek. Francesco Redi is an Italian physician and poet who explained presence of maggots in meat does not occur in a sealed container or bag. Two jars both with meat in it. One of the jars is sealed with a cloth, and the

### Rutherford's Gold Foil Experiment Essay

786 words - 3 pages , decided Ernest Marsden, a student of the University of Manchester, was ready for a real research project.2 This experiment's apparatus consisted of Polonium in a lead box emitting alpha particles towards a gold foil. The foil was surrounded by a luminescent zinc sulfide screen to detect where the alpha particles went after contacting the gold atoms. Because of Thomson's atomic model this experiment did not seem worthwhile for it predicted all the

### Nothing Essay

578 words - 2 pages to the components of the individua l vectors A, B, etc., in the following way: Rx = Ax + Bx Ry = Ay + By The magnitude of the resultant vector and the angle θ between the vector R and the x-axis are as followed: R = (Rx)2 + (Ry)2 TanΘ= [(Ry) / (Rx)] The equilibrant vector is the vector E which is in opposite direction to vector R. II. Materials and Methods In the experiment, a force table with movable pulleys on its rim was used to

### Mechanical Properties Of A Meter Rule

6791 words - 27 pages fixed if the rule wasn’t held down but rather on top of two equally level object. 3.       As the clamps used to hold the rule will no longer be used, the problem should be resolved. 4.       I will not move when I am placing the weights on the rule and recording my results. I shall do this by keeping the weights near. ROUGH TRIALS METHOD 2: For my second rough experiment I did the compound pendulum experiment