UNITS‚ PHYSICAL QUANTITIES AND VECTORS 1 1.1. IDENTIFY: Convert units from mi to km and from km to ft. SET UP: 1 in. = 2.54 cm ‚ 1 km = 1000 m ‚ 12 in. = 1 ft ‚ 1 mi = 5280 ft . ⎛ 5280 ft ⎞⎛ 12 in. ⎞⎛ 2.54 cm ⎞⎛ 1 m ⎞⎛ 1 km ⎞ EXECUTE: (a) 1.00 mi = (1.00 mi) ⎜ ⎟⎜ ⎟⎜ ⎟⎜ 2 ⎟⎜ 3 ⎟ = 1.61 km ⎝ 1 mi ⎠⎝ 1 ft ⎠⎝ 1 in. ⎠⎝ 10 cm ⎠⎝ 10 m ⎠ 1.2. ⎛ 103 m ⎞⎛ 102 cm ⎞ ⎛ 1 in. ⎞⎛ 1 ft ⎞ 3 (b) 1.00 km = (1.00 km) ⎜ ⎟⎜ ⎟⎜ ⎟⎜ ⎟ = 3.28 × 10 ft 1 km ⎠⎝ 1 m ⎠ ⎝ 2.54 cm ⎠⎝ 12 in. ⎠ ⎝ EVALUATE: A mile is
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What keeps the stopper moving in a circle? Purpose: Relate the variables involved in uniform circular motion Hypothesis: I predict that the velocity of the stopper will increase as the radius is shortened. Rubber stopper with a hole PVC tube or wooden spool 1. Measure the mass f the stopper and washer‚ m‚ and record it in the data and observations section. Then‚ prepare the experimental apparatus as shown in figure A. 2. Throughout this experiment‚ you will need to maintain a constant
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** Atom and Introduction to Nuclear physics ** Introduction Alpha-particle scattering 2.1 Experimental set-up ➢ Alpha particle o is a high-energy helium nucleus with 2 protons and 2 neutrons. o has 2 positive charges. ➢ Gold foil was chosen since it has a high atomic mass. Thin gold foil‚ ~10-6m was bombarded by high-energy alpha particles. ➢ Angular deflections/ scattering of alpha particles were measured by observing
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Regents Physics Constant Velocity/ Acceleration Lab 10-3-13 Problem: Graphical Analysis of Constant Velocity and Accelerated Motion. Theory: Gravitational acceleration is constant on Earth g=9.8m/s2 Therefore‚ when the golf ball is dropped‚ the acceleration will be equal to gravitational acceleration agb=9.8m/s2 Given there is no air resistance‚ this means that when the golf ball is dropped from a given distance‚ according to the formulas‚ the golf ball will accelerate
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Candidate Name: Riddhi Chaknalwar Candidate Number: 001226038 May 1‚ 2012 ACCELERATION OF A FREE FALL
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1. What are the spring constant (k) is for spring 1 and spring 2? What are the units of k? Which spring is stiffer? Fs= kx k is the spring constant and it is measured in N/m or in kg•m/s2 Spring constant for Spring 1= .49=k(.01)= 49 k=49 N/m Spring constant for spring 2= .49=k(.02)= 24.5 k=24.5 N/m Spring 1 is stiffer; you can see that by the smaller change in spring length‚ and the higher spring constant. 2. Does your data fall neatly on your best-fit line? What are the possible sources
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PHYSICS PROJECT TO STUDY THE OPTICAL LENS OF A HUMAN EYE Eyes are organs that detect light‚ and convert it to electro-chemical impulses in neurons. The simplest photoreceptors in conscious vision connect light to movement. In higher organisms the eye is a complex optical system which collects light from the surrounding environment; regulates its intensity through a diaphragm; focuses it through an adjustable assembly of lenses to form an image; converts this image into a set of electrical signals;
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and excitement of physics Let Us Learn About Scope and excitement of physics Physics is exciting because‚ trains us in problem solving‚ It helps us to have an analytical outlook‚ to observe rather than see things. Everything is explained on the basis of the cause effect relationship‚ which helps us think logically and decide rationally Whether or not‚ a students of plus two continue to learn Physics‚ the basic problem solving skill he has acquired during the PlusTwo Physics course will remain
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PHYSICS II ELECTRICITY‚ MAGNETISM‚ SOUND‚ AND LIGHT SERIES CIRCUIT In this unit you’ll begin learning how to analyze circuits. Circuit analysis means looking at a schematic diagram for a circuit and computing the voltage‚ current‚ or power for any component in that circuit. Closely related to the task of circuit analysis is the task of troubleshooting‚ which means figuring out what is wrong in a circuit that is not working correctly. Analyzing and troubleshooting go hand in hand; when a circuit
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Name: __________________________ Date: _____________ |1. |British civil service workers in executive positions live longer than those in clerical positions. This best illustrates the | | |value of: | |A) |emotion-focused coping. | |B) |the general adaptation
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