Paper On Doppler Effect

The laws of reflection and refraction can be shown using Huygens’ principle as well. The concept of diffraction occurs when a wave bends in a way other than reflection or refraction. Diffraction occurs to some degree in every shadow. The amount of diffraction depends on the wavelength and the size of the obstruction that casts

The three most important properties of a wave are the wavelength, the amplitude, and the frequency. The wavelength is the distance from one point on a wave to the next identical point on the next wave. The amplitude is the distance from a waves rest position to either the crest or trough of the wave. The frequency is a rate which represents the amount of times a wave repeats

2.03 Electromagnetic Spectrum- The Visible Assignment 1. A Doppler radar can see the amount of precipitation that there is in a thunderstorm. It can also see the direction of the precipitation in a thunderstorm as it moves closer or away from the radar.

Wave properties: Frequency: How many waves go past a point in one second; measured in hertz (Hz). The higher the frequency, the more energy in the wave. 1 Ask the children to play 'verbal tennis' in partners on words that describe sounds (eg loud, quiet, vibration, pitch). One child says one word related to sound, then their partner says another and so on. 2 Ask the children what things make sounds.

In "Passage 1: Sound is All around Us, Sound is Energy" Jason Torres claims that sound is a form of waves that vibrate in one directions called longitudinal waves. "The distance between two adjacent compressions, two adjacent rabout the longitudinal arefactions, or a single compression and rarefaction combined is a wavelength of a sound wave. " This is Jason Torres ' definition of Longitudinal Waves. The wave measures the sound and pitch. This pitch and sound can differ due to the extent of energy/waves released.

The Doppler Effect says that there is an apparent change in received frequency due to relative motion between a sound source and sound

A spectrometer is a specialized instrument that is used to quantify and measure the reflectance and transmittance properties of a sample material.2 Every food dye used in the food industry is approved by the FDA and must follow a set of individual regulations.1 These regulations make each food dye identifiable through specific characteristics that a spectrometer has the ability to detect. The machine works by exposing a sample to a polychromatic light source.2 Whichever light is reflected will then be broken apart into various sections, within the visible spectrum that runs from red to violet.

Pythagoras a german mathematician figured out that the pitch of a string is determined by the length of the string its self which uses alot of mathematics as

Such as told the speed of sound is around 1120

Roswell, New Mexico Do aliens really exist? Is Earth the only inhabited planet? In the summer of 1947, unexplained debris found near Roswell, New Mexico raises speculation of alien existence. Even after decades of debate, people still do not agree about the source of the debris. The debate has sparked two major theories: a giant balloon crash and a UFO crash.

The telescope allowed scientists to look back to the beginnings of the Universe to about 380,000 years after the Big Bang. Another name for the Planck spacecraft is COBRAS or SAMBA. This spacecraft was made in Europe. The operator for this mission was ESA and it operation was Planned: for 15 months and it Final duration was 4 years, 5 months and 9 days. Planck has a higher resolution and sensitivity than WMAP (Wilkinson Microwave Anisotropy Probe), allowing it to view much smaller scales (×3).

Whenever there is a rate of increase in the distance from Earth and the light source moves away from an observer the relative difference between the object observed and emitted wavelengths (or frequency) is known as“redshift” (Appenzeller. I, 2009). In particular, the redshift range from 0.8 to 2.5 will be the focus in the mapping distribution of CHIME. Astonishingly the data recovered will be used to construct a three-dimensional map of the cosmos structure that in fact be the largest map ever observed of the universe. Cosmologists will have the ability to better recognize and understand the cause of the universe's accelerating expansion.

When the wavelength from other galaxies is increasing that means they are moving away from us which is currently what is happening. Red shift is closely related to the Doppler Effect because when a galaxy moves away from the observer it emits a different color light that can be used looked up on the Electromagnetic Spectrum to determine how far and how fast a galaxy is moving away from us, which brings us right to redshift which is when a galaxy or any other object is moving away from us. We detect these galaxies moving away from us by noticing the wavelength, when an object is moving away from us the wavelength gets bigger because it is getting stretched out. Red shift is occurring constantly because scientist have discovered that as time goes on the galaxy’s are only moving farther and farther away from us. Blue shift is closely related to redshift only that it is when a galaxy is moving towards us making the wavelength get smaller, scientist have discovered that in all there are only about 100 known galaxies that are blueshifted.

The purpose of this lab was to observe the phenomenon of resonance in an open ended cylindrical tube and use resonance to determine the velocity of sound in air at regular temperatures. A hypothesis for this lab was that if the frequency of the tuning fork increased, then the length of the tube to achieve resonance will increase because of the high amplitude of the vibration. The resonance of the open-closed tube was found through these steps. First, the tube was filled with water with an inner tube inside the outer tube. The water temperature was measured.

Astronomers used parallax to measure and determine the distance of a star. Not only astronomers uses parallax; surveyors, and sailors use parallax to determine distances. Parallax is when an object’s position or direction change based on the viewers angle. For example, looking at one object with your left eye closed, then with your right eye closed. The object will seem like it is shifting against the background.