Friction on a surface. Aim: To establish the relation between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it using a spring balance Materials required: A rectangular block of wood with a hook ‚ set of weights‚ strong thread and a spring balance. Theory: The force of friction acting on a block of wood is proportional to the normal reaction acting on the block. By the third law of motion‚ normal reaction is equal to the weight
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COLLEGE OF MEDICAL SCIENCES Physics Lab Experiment Geometrical Optics Name : INTRODUCTION Friction is a force (measured in Newtons) acting along the surfaces of two objects in physical contact that impedes the relative motion of these objects (the motion of one with respect to the other). As such‚ it can be said that friction always acts opposite the motion of the object or the force applied. There are two main types of friction: Static friction: the frictional force that opposes any
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clearly presented are carried out in the Civil Engineering department soils and materials labs at AUB. Finally‚ an analysis of the results and possible improvement methods and precautions to avoid polishing of asphalt pavements are proposed. Introduction During the entire life cycle of a pavement‚ highway agencies are expected to monitor and maintain an adequate surface roughness to facilitate friction between car tires and pavement surface. Polishing is a smooth slippery surface
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Lab 4: Newton’s Second Law Lea Finocchi September 24‚ 2013 Partners: Amanda Okeefe‚ Sara Rojek‚ Kiran Kandola Objective: The objective of the first part of the experiment was to derive an expression‚ under conditions with negligible friction‚ for the acceleration of a cart on a level track when it is attached by a string to a hanging mass at the end of the track. With the value of acceleration and the mass of the weight divided by the mass of the weight plus the mass
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Pipe Friction Summary The purpose of this lab is to find the friction factor and Reynolds number for laminar and turbulent flow and also for values in the critical zone. Results were taken recorded and used to calculate the friction factor and Reynolds number. They were then compared with the Moody diagram. Aim This lab could be used in industry when dealing with a pipe line containing any type of liquid to calculate the Reynolds number and friction factor. It would also help in pipe
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Part one: The Lab 1. You will be helping Galileo perform the experiment to determine if objects with different mass fall at the same‚ or different‚ rates in the air and in a vacuum. Before you conduct your experiment‚ you need to form a hypothesis. A hypothesis is a prediction of what you think will happen in the experiment. The hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. Record your hypothesis
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[5.5cm radius] - CD (2) [6cm radius] - Thin stick - Pulley - Tape 2. The shoebox and the poles were measured and marked at places for drilling. 3. Four holes were drilled on the shoebox with electric drill. (Larger than the axles to reduce friction from the cardboard on the axles) 4. A hole was drilled near the top of each pole. 5. The box was cut on the two sides and the poles were inserted and taped onto the cart. 6. The string was wrapped around the back axle. 7. A CD was attached on
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------------------------------------------------- “FRICTION” I. Learning Objectives At the end of the lesson‚ 95% of the fourth year students should be able to: 1. define friction; 2. identify the types of friction; 3. draw the free body diagram of forces in a given problem; and 4. determine the advantages and disadvantages of frictional force in our daily life. II. Learning Content A. Subject matter Friction 1. Content outline Definition of terms Types of friction Construction of free-body
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THE UNIVERSITY OF HONG KONG DEPARTMENT OF MECHANICAL ENGINEERING Part I APPLIED DYNAMICS LAB (full report required) DYNAMICS OF A TROLLEY ON RAILS Based on document MGS/ID137/203 by Dr MG Sainsbury Modified in Feb 2007 & Jan 2008 by Dr L Huang and Mr WS Sze 1. Objectives (1) To measure the velocity and acceleration of a trolley as it descends on inclined track and is stopped by a nonlinear elastic arrester system. (2) To compare the measured acceleration‚ velocity and displacement with theoretical
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ME313L Fluid Mechanic Lab Manual (DRAFT) Pipe Friction Experiment Object: The friction loss in a small-bore horizontal pipe is to be determined over a wide range of Reynolds number. Both laminar and turbulent flow regimes are to be studied. Equipment: Air valve Water manometer Mercury U-tube Isolating tap meter From water supply Needle valve Test tube Figure 1 Pipe friction apparatus A. Laminar Flow The laminar pipe friction apparatus is shown above. It consists of a water loop. The
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