My results from this experiment relate to known values of momentum as the results clearly demonstrate the affect of mass on the velocity of an object. My experiment proves Isaac Newtons third law of momentum to be correct, as the net force of a marble caused the acceleration of another marble. The distance the marble travelled depended on the net force, which in this experiment changed due to the different masses. When the mass of the marble was lighter, it had a decreased net force, causing it to have less momentum, as when it collided with the stationary marble the distance travelled was only 3.5cm. The marble containing the heaviest mass had a greater net force and impulse, affecting the change of momentum, as when the collision occurred the stationary marble had travelled 53cm.
The results table
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For every marble there are three different trials to improve the reliability. For the first marble largest difference between the results is 1cm, as the first trial distance was 4cm, the second was 3.5cm and the last was 3cm. The 6 gram marble had a 4cm difference, the trials being 22cm, 18c, and 22cm. The heaviest marble had a 2cm gap between the lowest and highest distance, the results were 53cm, 52cm ad 54cm. The 6 gram marble had the largest difference between each trial, decreasing the reliability of the results.
The validity of my experiment contained some issues. When placing the stationary 6gram marble in-between the two rulers on the floor, it tended to roll to the side of the ruler instead of the middle where it could be directly hit by the moving marble. Due to this issue the results may not be as valid as they could be. To improve this, making sure the marble is centred at the beginning of
Also, the alpha particles already had a lot of momentum on their own because of their mass. Our marble did have a decent amount of mass, but it did not have much momentum to propel itself forward. In the end, the marble would be travelling faster than the alpha particles because it has a larger distance to cover and it also has to be given all of its energy by the experimenter. In size comparison, Rutherford’s experiment was about 5 x 10^27 times smaller than our experiment. If our marble was bigger, then in certain trials, it would have made contact with our nucleus when a smaller marble might have just rolled past it.
Conclusion: The results of this lab were found through seemingly simple equations, basing all of your work off of data such as time and distance can become frustrating due to human inaccuracy, but the results show the height and initial velocity of the marble. The results are all reasonable compared with the beginning values that we collected during the lab, and even without calculations fit into the equation. The concept of projectile motion was the basis of this lab, focusing on using kinematic variables and equations to find the
Nevertheless, the momentum of the carts was conserved, showing that the sum of momentum before collision for the carts was 0.246 Kg.m/s, while after collision, the momentum was distributed between the two carts at 0.10 Kg.m/ s evenly, giving a total of 0.20 Kg.m/s and showing that the momentum was conserved. The small deviation in the decimal place value can be as a result of some experimental or calculation
The Velocity Step Test measures gain and the time constant of the VOR by quickly changing the velocity of the chair when rotating left and right. Pre- and post-rotary nystgamus are measured at time constants of 60 and 240 degrees/second. Pre-rotary nystagmus time constant is measured during the 60- and 240-second velocity times and post-rotary nystagmus is measured during the 60- and 240-second stop times. The reason for using 60 degrees/second is to estimate the time constant and gain for the left and right horizontal canals. As the velocity increases, the time constant decreases and a percentage of VOR gain for the right and left can be compared. The test begins by accelerating the patient around 100 degrees/second2 stimulating the right peripheral system. The patient is spun to the right until maximum velocity is reached at 60 or 240
Seven various household objects were chosen to measure using a digital gram scale. Each object’s mass was estimated by lab students and recorded in data table 4. A quarter, ball point pen, rubber bulb, large paper clip, green crayon, house key and a copper penny masses were estimated and recorded in data table 4. Each object was placed on the scale individually and its actual measurement was recorded in data table 4. As we started estimating the household objects we were often not correct in our estimations. As we measured more and more objects, we got better in our estimations by comparing objects with known masses and comparing them with the unknown
In order to draw conclusions in both situations, you need to determine what makes the marble or particle roll or travel the way it does. For example, in the experiments, if the particle went straight through the gold leaf and in our activity, if the marble rolls straight through the cardboard, you can infer that the particles and the marble didn’t hit the target. However, if the marble or particle bounced off of the target at an angle, you need to be able to use those angles to determine what shape and size the target is and where it is
To determine whether the height at which a marble is dropped affect the size of the crater.
The data collected agrees with Newton’s 2nd Law. Newton’s 2nd Law describes how the acceleration of an object is dependent on two things: the mass of that object, and the net force acting upon that object. As the mass of an object increases, its acceleration decreases. Our experiment directly relates to and agrees with this law of motion. The starting mass of our object was 653.7 grams, with an average acceleration of 0.8771 m/s².
Marble 5; 5.1g; total mass is 25.9g; total volume is 10.5mL, and volume of Marble 5 is 2 mL. Marble 6; 5.6g; total mass is 31.5g; total volume is 13mL, and volume of Marble 6 is 2.5mL. When analyzing the results it was discovered that as the number of marbles increase the total volume increased due to the increase of particles. The graph shows a straight line which also demonstrates how the ratio of mass and volume will not cause a change in the density no matter how much of the substance is being used. Possible errors that could have skewed the data include the water not being 30mL at first or a broken calculator. If the water was not originally 30 mL then the total volume of the marbles would be incorrect as the number wouldn’t be accurate because of uneven starting points. If the calculator used to find the answers is broken then the answers would all be inaccurate, which would mess up the data.
We then added mass to the object and massed it again using the scale. We recorded the new mass, and followed the same procedure as the first two trials. We then added more mass, and followed the same procedures as stated
Purpose: The purpose of the practical is to find how mass affects acceleration and how it affects also the force of the accelerating body. To do this we are going to do the ticker tape experiment where an accelerating body pulls a tape through a consistent 50 dot per second ticker timer. The acceleration body in this experiment will be a small trolley pulled by a string that is pulled by the downfall of different masses which will then tell how mass affects acceleration.
The difference in the measurement was 0.1 centimeters, one millimeter, or 0.001 meters. A factor that could account for this difference is that when we measured using the metric ruler, we had to constantly move the ruler down the table in order to obtain the full measurement. During the process of doing that, it is very possible, that a millimeter or two could have been added or cut off while we were continuously moving the ruler. In station two, the directions stated not to splash any water out of the graduated cylinder when we put the rock in because it would alter the results for the measurement. For example, if a few milliliters of water spilled out while placing the rock in, the calculation for the measurement of the rock would also be a few millimeters less; therefore, it would decrease the accuracy of the measurement of the volume of the rock.
The discovery of these laws, laid down a basic foundation for the physics of motion. Newton's three laws of gravity changed the way in which the world was perceived, because of their accuracy in describing many unexplained phenomenons.3 They explained what happens as a result of different variables, but most importantly, they explained why and how these actions happen. Like many of Isaac Newtons ideas and theories, the three laws of motion had a profound impact on the scientific community. The three laws of motions provided an explanation for almost everything in macro physics. Macro Physics is the branch of physics that deals with physical objects large enough to be observed and treated directly.4 This allowed for many new advancements in physics because the foundation had been build for others to develop upon. Isaac Newton published these findings in his revolutionary book “The Principa”. The Principa was revolutionary book because it organized the bulk of his life’s work, More importantly the
Furthermore, the measurements from a wooden block and a metal object were taken to calculate their volume and density. In this case, the calculations were more precise but due to other sources of errors, which may be systematic, random or personal, the data was not 100% accurate. There are always certain uncertainties associated with any type of measurement and it is important to know that no measurement will be one hundred percent correct.