Work Is Calculated As Force X Distance - 1586 Words

Pg 377: Answer 1: Exerting a force does not imply that work is done. Work is calculated as Force x Distance. Work is said to be done on an object when the force on the object causes the object to move some distance. Ife the object does not move, no work is done immaterial of how much force is exerted. There are many situations when force is exerted but work is not done. For example, if you hold a piece of wood while helping in a project, effort is done to hold the wood in place, but since the force doesn’t cause the wood to move, work is not said to be done. The force has to be in the direction of motion to require work to be done. Answer 2: The formula for calculating work is: Work (J) = Force (N) x Distance (m) Thus, the amount of work done can be determined by multiplying Force with Distance. Answer 3: Here two scenarios are given. a. Force of 2N moves an object 3 meters: Here work is calculated as: W = F x D = 2N x 3m = 6 Nm (6 Joules) b. Force of 3N moves an object 2 meters: Here work is calculated as: W = F x D = 3N x 2m = 6 Nm (6 Joules) Thus, in both cases, the work done is same, i.e. 6 Joules. Answer 4: Here, we need to move 5 large cans of paint from basement to the second floor. Let us assume that the Force for lifting one can is 1N and the height of one floor is 1m. Thus, the below two scenarios are taken as: a. When all the cans are lifted and taken to second floor all at once, the calculation for work done is: W = 5N (5 cans each of 1N) x 2m (2 floors eachShow MoreRelatedCoulombs Law1608 Words   |  7 PagesPurpose The purpose of this experiment is to test Coulombs Law which states that the force between two spherically symmetric charged objects is directly proportional to the product of the charges, and inversely proportional to the square of the distance between the centers of the two charges. In mathematical vector notation Coulomb’s Law is expressed as where Fr is the force on particle 1 due to particle 2 in Newtons, q is the charge on 12 1 particle 1 in Coulombs, q2 is the charge on particleRead MoreThe Physics Of Atomic Force Microscopy1259 Words   |  6 Pages Abstract Atomic Force Microscopy was the method used to analyze samples inorder to identify their surface composition and determine their top structure. Compiled data was used to calculate the roughness of the sample. Introduction Atomic Force Microscopy is a powerful tool used to identify the surface structure of a solid by contouring the top layer with a sharp tipped probe and amplifying the hills and troughs viaRead MoreExperimental Errors And Uncertainty Brett Spencer1337 Words   |  6 Pagesalong with a constant set speed in order to test the variables. Measurements were taken during a free-fall experiment, where the distance travel (y) was recorded at each 4 depicted times (x). The calculations for the average speed for each team slot, along with its standard deviation were manually calculated to three significant figures. The results related to distance, however, were not rounded in any format. Section 2: Analysis A. Calculations The average (or mean) of a data set isRead MoreExperiment 2011639 Words   |  7 PagesEXPERIMENT 201: WORK, ENERGY AND POWER John Michael A. Ramos, Phy11l/A5 Abstract The essential conditions to be satisfied for work to be done are: Some force must act on the object. The point of application of force must move in the direction of force. W = F x s. SI unit of work is joule. Energy is the capacity to do work. The two types of mechanical energy are kinetic energy and potential energy. Kinetic energy is the energy possessed by an object by virtue of its motion. Potential energy isRead MoreA Research Study On Exercise Testing844 Words   |  4 Pagesgroup. The participants were randomly assigned whether they would perform continuous or intermittent exercise following a crossover design of experimentation. The subject’s workload was calculated during experimental design and was assigned as follows: 240 W for males (3 kp X 80 rpm) and 180 W for females (2 kp X 90 rpm). The procedures for this lab are outlined below to allow replication of the experiment performed. For collection of data, 2 experimenters were needed; one timed the experiment withRead MorePotential Energy and Solution1052 Words   |  5 PagesWork and Energy Worksheet Section 1 Work: 1. A person pulls a toboggan for a distance of 35.0m along the snow. The force in the rope (tension) is 94.0N. How much work is done on the sled? Solution: W= Fd W= 94.0N x 35.0m W= 3290 Nm or J 2. The cable of a large crane applies a force of 2.2x10^4N to a demolition ball as it lifts it vertically a distance of 7.6m. a) How much work is done on the ball? b) Is the work positive or negative? Why? Solution: Read MoreAnalysis Of Coulomb s Law Defines The Force2035 Words   |  9 Pages â€Æ' Introduction Coulomb’s Law defines the Force acting upon two charged objects relative to their charge that they hold as well as the distance between them. The interaction between these two charges occur through non-contact which is prevalent over the distance between them. Vectors are most commonly used to represent the force between two charged points. Being that is a force acting upon these two charged objects the strength of the interaction between these two charges is a vector quantity (PhysicsRead MoreSome Essay1325 Words   |  6 PagesLab 3: Newton’s Second Law: The Atwood Machine Introduction: In the study of physics a lot of the basics were put in place by Isaac Newton. Out of the 3 laws of motion he had declared the second law states that force equals mass times acceleration (F=ma). The Atwood machine is a machine that has a pulley in the air and a string running through the pulley, some kind of mass is suspended by each end of the string. When the suspended masses are unequal, the system will accelerate towards the directionRead MoreHow Energy Is Conserved As It Is Converted From One Form Of Energy Essay2167 Words   |  9 Pagesobject (force sensor) and then letting it move and up and down the incline plane. Logger Pro recorded the carts velocity and displacement while the cart was in motion as well as the force felt on the sensor at the bottom of the plane during this time period. Whether or not energy was conserved was determined by calculating the energy of the cart at different points on the incline plane and comparing these different values. The initial energy of the cart before it was projected was calculated to beRead MoreAll Chemicals Were Of Analytical Grade1186 Words   |  5 Pagesback face of the cathode was covered with an epoxy to prevent of zinc deposition. On magnesium, the lamellar deposit does not appear and only powdery structure forms, which are easily removed from the cathode [22]. Moreover, the anode to cathode distance was kept at 3 cm, and all experiments were completed after a total charge of 16200 Columns was passed. Power Supply- model UNI-T: UTP3315TF-L was used to run the galvanostatic zinc deposition. To obtain a constant temperature during the electrolysis