6th hour 4/1/13 Tennis ball and racket ball comparison Problem: Find the speed of the tennis ball and the racket ball to determine which one travels faster. Hypothesis: I believe that the racket ball will have a faster average speed than the tennis ball for both distances because the racket ball is bouncy. Materials: *Tennis ball *30yards of space *Racket ball *Set of stairs *Stop watch *measuring tape Procedures: 1) Measure out 30 yards of space‚ have of member stand
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ventricles chambers are separated by four main valves called the atrioventricular (two valves)‚ pulmonary‚ and aortic valves. These valves help create the heart sounds often referred to as “Lub” and ‘Dub”. Thus‚ the Lub sound is the closing of the atrioventricular valve‚ and the Dub sound is the closing of the pulmonary and aortic valve. In this lab‚ we became familiar with the functions of the heart. We also determined
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Chapter one of Healing at the Speed of Sound‚ by Don Campbell and Alex Doman‚ brings up some interesting ideas for the reader. Whether you believe them or not‚ it is important to evaluate and discuss their ideas expressed. The first interesting idea brought to my attention is an idea I would say I was subconsciously aware of‚ but never fully incorporated into my everyday life. Campbell and Doman express that the sounds you hear affects your mood‚ energy and others aspect of your life. They go on
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Measuring the Speed of Sound (Moving Tube) KEY Purpose: To measure the speed of sound in air using a variable length column of air. Apparatus: resonance-tube apparatus (an open ended tube which can be moved in and out of a container of water) constant frequency source (tuning fork or computer generated tone) rubber hammer meter stick rubber stopper Procedure: 1. Set Up the Experiment: Place the open ended tube into the water‚ and verify that it can produce a resonance tube
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Speed and Radius Question For an object moving with uniform circular motion‚ what relationship exists between the radius of its path and its speed? Hypothesis If the radius is increased‚ I believe that the speed will decrease‚ giving speed and its radius an inverse relation. Variables The variables in this lab are the radius of the circular path‚ mass of the rubber stopper‚ mass of the hanging weight‚ number of revolutions‚ elapsed time‚ period‚ and speed. Materials and Equipment
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Speed of Sound in Air By: James Chen Lab Partner: Jin Zhang and Jake Salpeter Phys 130‚ Lab section: EE11 TA: Khaled Elshamouty Date of lab: October 29‚ 2013 Introduction Sound is a longitudinal (compressional) wave caused by a vibrating source. In this experiment‚ we use standing sound waves created by the tuning forks to determine the speed of sound in air in a tube when it reaches different resonances. In this lab we focused primarily on using standing sound waves (compressional
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Frequency and Volume of Sound Waves Exp 11.1 Physics Lab Partners: 1/28/12 Object: To see how wave length‚ speed‚ and temperature affect frequency Supplies: * 2 six inch pieces of copper pipe and 1 four inch piece * Freezer * Hot tap water * Bowl * Paper towels Procedure: 1. Hold one of the six inch pieces of pipe in hand and plug the bottom with finger 2. Blow into the pipe until you find the right angle to create a tone 3. Vary the force with which you
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" Factors affecting the speed of sound in a medium" Type of the medium- The speed of sound is not always the same. Remember that sound is a vibration of kinetic energy passed from molecule to molecule. The closer the molecules are to each other and the tighter their bonds‚ the less time it takes for them to pass the sound to each other and the faster sound can travel. It is easier for sound waves to go through solids than through liquids because the molecules are closer together and more tightly
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MEC 325/580 Lab Report CNC Machining Lab Report Date: March 18‚ 2013 Group Leader: Jian Wu Team Members: Group Number: G4 Regment No.: D Insturctor: CONTENTS 1.Objective and introduction. 2.Principles and practice. 3.Design and result. 4.Conclusion and recommendations. Appendices 1. Objective and introduction * Objectives Operate the CNC milling machine using G-codes‚ M-codes in a CNC program. * Equipment: Minitech CNC machine (Series 2) * Machine
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Sounds are waves that we hear and are caused by vibrations that travel through mediums. Depending on the medium and temperature‚ the time it takes for sound waves to travel vary. The hypothesis states that if the temperature in the air increases‚ then the speed of sound will also increase because faster-moving particles transfer energy quickly. The data collected supports the hypothesis. Therefore‚ increased air temperature affects the speed of sound because the molecules move faster‚ which causes
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