phy12 e302

The results from Calculations 1 and 2 can be utilized in Eq. 3 to determine the final percent yield for the experiment, and this is shown in Calculation 3.

A sound wave is a disturbance that repeats regularly in space and time and that transmits energy from one place to another with no transfer of matter. In Activity 2 on page 8 we had to model sound waves using an instrument. In our class we used a flute as the example and when the person blew into it, sound waves were produced. As they blew and changed the volume and pitch the sound waves changed. A sound wave is created when something vibrates. When something vibrates, longitudinal waves are created which we can hear. A longitudinal wave is a wave that transfers energy through compressions and rarefactions in the material that the wave travels which are all parts of a sound wave. In Activity 2 it states in some parts of the wave, the air molecules

1. Sound is travelling from material 1 to material 2. The density of material 1 id 25 kg ms-3 and the density of material 2 is 18 kg m-3. The speed of sound in material 1 is 1900 ms-1 and in material 2 is 18 kg m-3. The speed of sound in material 1 is 1900 ms-1 and in material 2 it is 700 ms-1.

The purpose of this experiment is to measure the speed of sound in air and to determine the effects of frequency on the speed of sound.

2. A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.50% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 m/s. The teacher informs them that the actual velocity is 34.15 m/s. Will Jennifer and Johnny pass their final project?

2.  A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 m/s. The teacher informs them that the actual velocity is 34.15 m/s. Will Jennifer and Johnny pass their final project?

C. An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide.

An Ultrasound Technician, also known as diagnostic medical sonographers, use high-frequency sound waves to create images of soft tissue in a patient's body. Physicians use these images to diagnose abnormalities and diseases in a patient. As early as 1826, a Swiss physicist name Jean-Daniel, had effectively used an underwater bell to determine the speed of sound in the waters of Lake Geneva. In the late 1800s, physicists were working successfully towards defining the fundamental physicists of sound waves, transmission, propagation, and refraction. Lord Rayleigh was the first to describe sound waves as a mathematical equation, forming the basis of future practical work in acoustics. Lord Rayleigh famous work “the Theory of Sound” was published

Have you ever wondered why glass bottles made a sound, kind of like a music note? Well, this paper will explain how this works. The paper will be talking about sound, sound waves, standing waves, musical note names and frequencies, resonance, and closed-end air columns. Closed-end air columns will be a main focus in the paper, studying the physics behind it. Glass bottles are an example of a closed-end air column. Therefore, the more water inside the bottle, the lower the note, and less water would be a higher note.

ii) The same formula that used to analyse the value of “t” in the “test_data_b” is also used in the “test_data_c”. The formula is:

November 4th: I started to research the basics and a sound wave and its properties. I also to notes on what a sound wave is and how frequency affects a sound wave.

This experiments takes many of us back to our childhoods as we take the time to explore the efficiency of these contraptions that we made in our boring and insipid classes to pass the time. These contraptions, which were created spur

In this experiment, lab partners observed standing waves as presented by a sonometer. Students observed the relationships between frequency and length at a constant mass, frequency and tension at a constant length, and tension and linear density at a constant frequency. Our results were reasonable and indicated that the relationships for the first two parts were linear which means as the length decreases, frequency will increases at a constant tension and as tension increases, the squared frequency also increases at a constant length.

Next, theoretical velocity values were calculated, first by finding starting value, then by multiplying it by reference velocities according to equation (10) and Table1:

Since my project will be experimenting with sound and its frequencies, I wanted to become more familiar with sound. Starting with the basics, when using frequency, you measure in hertz (Hz). Also, sound waves are the transfer of energy without the transfer of matter. This means that waves transfer energy, but it does not give off any type of liquid, solid, or gas. Sound travels through matter, but is not matter, only energy. Frequency can be defined as the number of wavelengths to pass a point per second. When going about life we hear different sounds every day. Each sound has its own frequency depending on how low or how high the sound is. The human ear has the ability to hear sound frequencies from 20-20,000 Hz and animals such as dogs can hear frequencies of about 50,000 Hz. Sound frequencies below 20 Hz are known as infrasound and frequencies above 20,000 Hz are known as ultrasound. I will be testing frequencies from many different range, even ultrasound frequencies to determine what kind of frequencies a wine glass can sustain and what the effect of each frequency has on a wine glass. When a frequency is applied to a wineglass and other types of glass, the glass will vibrate until the glass can no longer sustain the vibration. My experiment will determine what frequencies just vibrate the glass without breaking it and what frequencies vibrate the glass to the point of breakage.