Simple machines are extremely important to everyday life. They make stuff that is normally difficult a piece of cake. There are several types of simple machines. The first simple machine is a lever. A lever consists of a fulcrum‚ load‚ and effort force. A fulcrum is the support. The placing of the fulcrum changes the amount of force and distance it will take in order to move an object. The load is the applied force. The effort force is the force applied on the opposite side of the load
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Simple Machine Joemarie A. Martinez 1-D CE Simple machine Simple machines make work easier by multiplying‚ reducing‚ or changing the direction of a force. The scientific formula for work is w = f x d‚ or‚ work is equal to force multiplied by distance. Simple machines cannot change the amount of work done‚ but they can reduce the effort force that is required to do the work! As you can see by this formula‚ if the effort force is reduced‚ distance is increased. These simple machines
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Simple Pendulum Experiment In this experiment you will make a simple pendulum consisting of a plumb bob and a piece of string anchored at two points. By attaching the string to two points the normal precession that would occur will be eliminated. [pic] Items to be turned in as report: 1) all discussion question answers (be thorough) 2) graph of period squared versus length 3) simple data tables of collected data 4) graphical analysis answers 5) using your values for g‚ calculate
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Simple Pendulum PURPOSE The purpose of this experiment is to study how the period of a pendulum depends on length‚ mass‚ and amplitude of the swing. THEORY A simple pendulum is an idealized model consisting of a point mass (sometimes called a pendulum bob) suspended by a massless unstretchable string. When the bob is pulled to one side of its straight down equilibrium position and released‚ it oscillates about the equilibrium position. The path of the bob is not a straight line but an arc
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Introduction: Diffusion and osmosis are passive processes of transport. Passive transport involves no disbursement of energy by the cell. Diffusion movement is from high concentration to low concentration‚ which the driving force for this type of movement is kinetic energy particles themselves. Which crystal (Methylene blue‚ solid or Potassium Permanganate KMnO4-purple) will move further than the other due to the driving force (kinetic energy)? My prediction is that Potassium Permanganate KMnO4-
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Aldosterone and Hormone Replacement Therapy Aldosterone falls in the class of hormone called mineralocorticoids‚ produces by the adrenal glands and is found near the kidneys. It sustains blood pressure‚ water and salt balance within the body. This procedure is assisting the kidneys to preserve sodium and excrete potassium in order to maintain a balance. If Aldosterone production falls‚ there isn’t enough regulation of salt and water balance (as aldosterone is being lost through urination) triggering
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Cell Size: Is Bigger Better? Problem: Why are cells small? Objective: To see the relationship between cell size and diffusion of materials. Hypothesis: If we cut three different sizes of cells‚ then the smallest one will survive the longest due to its sufficient permeable membrane. Cube | Total Volume (cm^3) | Surface Area (cm^2) | Index SA/VOL | 3 | 27 | 54 | .5 | 2 | 8 | 24 | .33 | 1 | 1 | 6 | .16 | Index of Cubes Cube Index SA/VOL Surface Area to Volume Cube | Total
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using protein carriers. Examples of active transport are endocytosis‚ exocytosis‚ and phagocytosis. Passive transport does not require energy it is powered by the concentration gradient of the molecule. Examples of passive transport are diffusion‚ facilitated diffusion‚ filtration‚ and osmosis. In our Osmosis Lab I used a Grade a large egg from the grocery store. Its circumference is 5 ½ inches it is smooth with no cracks. I carefully place the egg in a clear plastic cup and fill the cup with vinegar
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1.0 Introduction 1.1 Aim and Assumptions: The aim of this experiment is to observe the rate of diffusion of diethyl ether vapour into stagnant air‚ and then determine the diffusivity. An error analysis of this calculation also had to be carried out. The following assumptions made were: * Diethyl Ether is an ideal gas * Partial pressure at the top of the tube was equal to zero * Mass transfer resistance between the liquid surface at the bottom of the tube is insufficient‚ compared with the
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Perceptions of Belonging in The Simple Gift by Steven Herrick And The Island by Armin Greder Belonging is a multi-faceted concept that involves intrinsic aspects of human nature that are reliant on the individual’s life-long bond with various social‚ political and interpersonal relationships. Belonging is also fundamental in shaping an individual’s core values and identity‚ thus it is central to the human condition. A sense of belonging is developed through strong relationships over time is explored
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