Effect of Force and Mass on Acceleration Essay

Abstract In this lab there were cardinal principals investigated. The first was the family among applied thrust and quickening. The second was the relationship between kettle of fish and acceleration. To study these two relationships, my partners and I used a dynamic cart with added mass on it. This cart was wherefore attached to a pulley outline on a frictionless track where it was pulled by a force bearing mass over the edge of a table. In the first relationship tested, applied force and acceleration, mass was moved from being on the cart to being on the end of the pulley. My partners and I measured the acceleration with the LabQuest information processing system every time the cart was released. In monastic order to test the relationship between mass and acceleration, my group added different amounts of mass to the cart and measured the salmagundis in acceleration. From all of the selective information collected we concluded that force and acceleration have a direct, linear relationship. We also go underd that mass and acceleration have an inverse, quadratic polynomial relationship.Background When my lab partners and I started this lab, we came in knowing some background information on what we were doing and the concepts involved. We knew that we had to determine the relationships between acceleration in a system and the crystalize force performing on the system. We also knew that we had to discover the relationship between acceleration and mass in the system. Some major concepts we had to understand introductory to the lab were Newtons Fist Law of Motion, acceleration, net forces, and inertia. Newtons first law states that an object at rest will lie at rest, and an object in motion will remain in motion, with the same speed and direction unless acted on by an unbalanced force. This is important because we were conscious(predicate) that when an object is moving at constant velocity there is a net force of zero.This gave my group our basic understanding of acceleration, a rate of change of velocity over time because we realized that when there is an unequal net force the object must be accelerating/ decelerating. This also allowed my group to understand how net forces work, which is especially important since this lab consists of net forces that are not zero. Because the track the cart rode on was considered to be frictionless, my group used our prior knowledge to sop up that the only unbalanced force in the system was from the horizontal tension in the drawing string. My groups understanding that inertia is an objects tendency to stay at rest and withstand motion helped us during the lab as well. With this background knowledge we were able to perform the appropriate experiments to gain the correct results for our lab.Purpose The purpose of this lab was to determine the relationship between mass and acceleration. Another purpose was to determine the relationship between the acceleration in a system and the net for ce that is acting on the system. We wanted to deepen our understanding of these relationships by proving already known theories for ourselves.Hypothesis If the mass of the cart is kept constant but the net force of the system increases (hanging weight over the pulley), consequently the acceleration will increase. The acceleration will increase because a larger force will cause the object to move faster. This is because as the forces become more unbalanced in the horizontal axis the easier it is for an object to overcome its inertial tendency to stay at rest. However, if the mass of the cart changes but the force is kept constant, then the acceleration will decrease. This will happen because the heavier the object is the more force needed in order for it to move. Adding mass would increase the objects inertial tendency to stay at rest.Lab DrawingProcedure To test the relationship between acceleration and force (constant mass) my lab partners and I set up a metal cart on a metal fric tionless track. The cart had a string attached to it that ran over a pulley, alongside the edge of the table, where it was connected to a hanging mass (as the above drawing indicates). We hooked up a LabQuest entropy logger to the track in order to document the carts acceleration while being pulled by the hanging weight. My lab partners and I then placed two ergocalciferol gravitational constant blocks on the cart in addition to five 50 gram masses. On the end of the string hanging was a 50 gram mass. The cart was then released from its held position on the track, and the hanging weight caused the cart to accelerate. This acceleration was documented by the LabQuest data logger. My partners and I performed three trials and then found the average acceleration.Once the average acceleration was calculated, we took a 50 gram mass from on top of the cart to the hanging mass. The cart was released and the LabQuest data logger documented this new acceleration. We did this three times as w ell. My partners and I did this until all of the 50 gram masses were transferred from above the cart to onto the hanging string (6 different forces, 15 different trials). After this was completed we found the applied force by multiplying the hanging mass by 9.8 m/s2 (acceleration due to gravity). We then plotted the points and graphed the data to discover the relationship.To test the second relationship, mass and acceleration, my lab partners and I used the same cart and pulley set up on the frictionless track. We calculated the mass of the cart prior to adding any more mass, which was about 500 grams. Once we discovered this number we added five 500 gram masses to the cart. We released this cart three times, using a constant force, and had the LabQuest document the acceleration. We then found the average acceleration for the 3 kg cart. After, we removed iodin 500 gram mass from the cart. We released the cart three times with this new mass and found its individual and average accel eration. We repeated these steps until all of the 500 gram masses were removed from the cart, and then tested the cart with no added mass (6 different masses, 18 different trials). Once completed, this data was plotted and graphed, and the relationship determined.