V is the speed of sound and t is the temperature of the air one thing to keep in mind is that this formula finds the average speed of sound for any given temperature the speed of sound is also affected by other factors such as humidity and air pressure. The speed of sound although sound travels quite fast, it is still possible to calculate its speed in air to do this, the time it takes a sound to travel a measured distance must be recorded. Determine the dynamic behavior of a structure when excited at its natural frequency, and how active damping could be used to control vibrations [ e ] wind speed and water depth effects on the height of ocean waves [ e . The higher the shutter speed the better the results but also keep in the mind that the higher your shutter speed, the more light you need run an audio cable from your computer to the speaker. Enzymes are affected by changes in ph the most favorable ph value - the point where the enzyme is most active - is known as the optimum ph xtremely high or low ph values generally result in complete loss of activity for most enzymes ph is also a factor in the stability of enzymes.
Relationship between tension in a string and wave speed printer friendly version we have observed that an increase in the tension of a string causes an increase in the velocity that waves travel on the string. The formula is v = 331 + (061)t, where v is the speed of sound, and t is the temperature for this formula, speed must be measured in meters per second, and temperature in degrees celsius. You can measure the effect of temperature on the speed of both the mgn and lgn nerves in the same worm, similar to our previous experiments, but you will have to be expeditious with your time management, as this temperature experiment takes ~15 minutes if you measure both nerves the worm may start moving at the end of the experiment, causing.
The sound of two fingernails tapping has a shifting phase effect to it, similar to the flanging effects musicians use a tap is a sound pulse the variation in sound comes from the minute difference in the spacing of the two pulses your two fingernails make. Take the speed of sound in the air in the tube to be 330 ms-1 (a) length of the tube = 05 x wavelength = 15 m wavelength = 3 m fundamental frequency = v/λ = 330/3 = 110 hz. Experimenter to determine its relationship to an observed phenomenon (ie, the dependent variable) in such an experiment, an attempt is made to find evidence that the values of the.
What effects the speed of sound other than temperature and viscosity, is the thickness of the medium it's traveling through for example, sound travels approximately 43 times faster through water than air. Thus the speed of sound, v = 2s/t in the first case teaching notes 1 students are far more likely to grasp and to remember how to get the estimated speed of sound if you can arrange for them to undertake this experiment in pairs. Speed of sound in air is given by the equation where r is the gas constant, m is the molar mass of air and t is the kelvin temperature use your measured value of speed of sound and the room temperature to obtain a value for the speed of sound in air at (a) 0oc, (b) at 100oc. You could then calculate the speed of sound to use the same technique over short distances, you need a faster timing system, such as a data-collection interface in this experiment, you will use this technique with a microphone connected to an interface to determine the speed of sound at room temperature.
2009 yerkes summer institute day laboratory - speed of sound 14  the speed of sound this experiment was first calculate the speed of sound and compare. Measure the effects of changes in temperature, ph, and enzyme concentration on reaction rates of an enzyme catalyzed reaction in a controlled experiment explain how environmental factors affect the rate of enzyme-catalyzed reactions. In the lens equation and dispersion experiments, we investigated the effects of light slowing down when it goes through glass in dispersion, we know that n varies in a material according to the wavelength recall that normal dispersion is when n increases when λ increases.
When preparing your experiment for this laboratory exercise, how many substances or conditions should you test at a time one in an experiment to test a new drug, one group is given the drug in pill form while another is given a sugar pill. The speed of sound note this manual describes the laboratory experiment used during the 1996 - 1997 academic year significant changes have been made since then, and the manual used during the current academic year is in not available yet on the web. The speed varies with the medium employed (for example, sound waves move faster through water than through air), as well as with the properties of the medium, especially temperature.
Measuring the speed of sound this experiment describes the use of a pc oscilloscope to measure the speed of sound the adc-212 used in this experiment has now been discontinued but the experiment can be performed with any picoscope oscilloscope that has at least 2 channels. Describe your experiment for determining the relationship between resonant frequency and length of wire record the mass hanging from the wire calculate the tension in the wire. Experiments and lab ideas choose from over 1,000 well tested, ready-to-use experiments designed to help you integrate probeware into your curriculum.