Raw Data: Number of Washers | 4 | 6 | 8 | 10 | 12 | Mass of Washers (kg) (+/- .0005 kg) | 0.0265 | 0.0393 | 0.0522 | 0.6260 | | Mass of Stopper (kg) (+/- .0005 kg) | 0.0040 | 0.0040 | 0.0040 | 0.0037 | 0.0037 | Radius of String (m) (+/- .05 mm) | 0.5300 | 0.5150 | 0.5800 | 0.5840 | 0.5530 | Time for 20 Revolutions (s) (+/- .0005 s) | 10.0300 | 8.2650 | 7.7200 | 7.0800
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Conductors and Insulators of Electricity A major reason electricity works is because of conductors. First metal‚ water‚ tall trees and tall items are good conductors because lightning is attracted to them. These materials have many mobile electrons. Metal is an easy substance for lightning to travel through so metals are good conductors. However‚ rubber is a bad conductor because lightning bounces off of it. A bad conductor is called an insulator. An insulator has a few mobile electrons. It is
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SCHOOL OF PHYSICS Physics 1001: Laboratory 3. Standing Waves. Your name/student number:_________________________________ Date:_________ Marker’s signature:______________ Mark:______ Pre-lab Question 1: What is the wavelength of a sound wave of frequency 500 Hz in air (you will need to look up the speed of sound in air)? ________ m. Pre-lab Question 2: If a person inhales helium gas the sound of their voice changes quite dramatically. Why? Pre-lab Question 3: A shower cubicle
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Part 2: Safe work with large inductances 1. One of the main hazards of using inductances is electrical energy stored in the magnetic field. If a circuit containing an inductance is interrupted then the stored energy can release through air (forming an arc). This can destroy a switch contact‚ burn fingers‚ create other damage. In the circuit of Figure 1‚ show how to mitigate the risk (pay attention to polarity!). We give the elements in this circuit some simple values for the purpose of
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References: Raymond A. Serway and John W. Jewett‚ Jr.‚ Principles of Physics (Brooks/Cole‚ New York‚ 2006)‚p.127
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Objective: To study the conservation of energy and momentum using projectile motion. Theory: The ballistic pendulum demonstrates both the constant horizontal velocity in projectile motion and the conservation of momentum. Because there is no acceleration in the horizontal direction‚ the horizontal component (v_x) of the projectile’s velocity remains unchanged from its initial value throughout the motion. In a closed isolated system‚ if no net external force acts on a system of particles‚ the total
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Muhammad Ali Jinnah University Islamabad Applied Physics Lab Project Report [ BRIDGE RECTIFIER] Group Members MIRZA UMAIR SAFDAR EE-123076 HAMZA BIN TARIQ EE-123086 Section PHY 7 Submitted To Ma’am Javeriah Iftikhar Abbasi Physics lab project Introduction: In this project we have created a device which takes input of 220 volts of ALTERNATING SOURCE and it gives us out put of 5 volts of DIRECT CURRENT for this purpose we have used various electronic components as
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have XL=XC and the impedance‚ Z is equal to the resistance R‚ where Z=R. Because the capacitative and inductive reactances vary with the frequency of the AC current‚ the impedance of a circuit containing capacitors and inductors also varies with AC frequency. For a circuit with AC current flowing at angular frequency ω‚ its impedance is given by where XL = ωL is the inductive reactance‚ XC = 1/ωC is the capacitative reactance‚ R is the resistance‚ and ω = 2π f ( f is the linear frequency).
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CHM1032L pre/post lab instructions Preparation is a key to success in this lab. For this reason‚ you are required to thoroughly read through the experiment information presented in the lab manual‚ and complete a pre-lab for each experiment you do. The prelab must be completed prior to the day of the experiment. Each Friday I will ask to see your completed prelab before I allow you to enter the lab. If you have not finished the pre-lab‚ I will not allow you to enter the lab and you will receive
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Lab report is one way we used during of after an experiment in a laboratory to subtly record and discuss the experiment. During a lab‚ we sometimes can observe only the physical part of the experiment‚ or may be some visible chemical changes. These changes indicate that the experiment we do is successful or not. However‚ in order to understand and achieve more from just simply doing the experiment‚ we write lab report to more profoundly understand the internal meanings of the experiment we do‚ and
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