Feb 21, 2015 in this lesson we learn about the different types of waves and their characteristics. Wave front a would have the largest height, wave front b would have an intermediate height, and wave front c would have the smallest height. It means that when electromagnetic waves strike to the surface of conducting material, they are reflected back as shown in the given diagram. Electromagnetic waves, the electromagnetic spectrum and. Characteristics of light the subject of light as a form of radiant energy has been theorized upon, experimented with, and studied by many physicists and scientists. The idea that light is both a wave and a particle is introduced. Like all electromagnetic waves, light can travel through a vacuum. They travel in more of a circular motion and not perpendicular or parallel. Calculate the frequencies of waves 4, 5, and 6 and record these values in table 2. Polarization of light is evidence that light is a transverse wave. An oscillatory motion perpendicular to the direction of motion of the wave is the distinguishing characteristic of transverse waves. Light waves, waves that travel along ropes and waves across the surface of water, are transverse. Pdf characteristics of light reflected from a dense. Then max planck, a physicist, published a theory in which light was supposed to consist of a stream of high.
Indirect light which has been scattered by many sources is known as ambient light. A transverse wave can be generated along different planes. For light waves the relationship among the wavelength usually denoted by greek lambda, the frequency usually denoted by greek nu, and the energy e are where c is the speed of light and h is another universal constant called plancks constant that has the values h. Characteristics of light in this presentation, you will be learning about the electromagnetic spectrum, specifically visible light and the different wavelengths and frequencies of different components of the em spectrum.
A wave is defined as a repetitive disturbance traveling through a medium going from one location to another. Wavelength is the distance between one point on a wave. This article focuses on the physical characteristics of light and the theoretical models that describe the nature of light. According to maxwell, light was an electromagnetic wave with the same properties as other electromagnetic waves. When unpolarized light is passed through a polarizer, only the waves in the. Broadly speaking, a wave is a disturbance that propagates through space.
The interference that occurs when two waves combine to make a wave with a smaller amplitude. Characteristics of sound waves 1 characteristics of sound waves 2 transverse and longitudinal waves classification of waves is according to the direction of propagation. Lesson 2, light properties worksheet 1 light properties worksheet 1. Amplitude, resting position, wavelength, period, frequency, calculations, wave speed, light, pitch, the doppler effect. Basic electromagnetic wave properties electromagnetic radiation is characterized by a broad range of wavelengths and frequencies, each associated with a. When ambient light interacts with a surface, it is scattered in all directions. The two most common models describe light either as a wave or as a stream of particles. You can think of ambient light as background light. The pdf version of the teacher toolkit on the topic of wave behavior is displayed below. Refraction and interference are evidence that light is wavelike in nature. Light waves, also called electromagnetic waves, are forms of moving energy made of tiny microscopic particles called photons. Longitudinal and transverse waves waves transfer energy from one place to another but do not transfer any matter. Two of the main characteristics of sound are pitch and loudness, which in turn are determined by the frequency and amplitude of the wave, respectively.
Mar 10, 2017 seguin high school physics lecture over the characteristics of light waves. What are the characteristics of sound waves a plus topper. The characteristics of sound and light waves there are many different kinds of waves. Characteristics of radio waves by jennifer devlin on prezi. Sep 06, 2016 characteristics of sound waves sound travels in the form of a wave. Light and other elecromagnetic radiation can be polarized because the waves are transverse. Furthermore, in a denser medium, the speed is different for each color of light. Virtual lab what are some characteristics of waves. Wavelength is the distance from the crest of one wave to the crest of the next wave fig. Light waves vce the question of what is light was a matter of great debate during the 17th and 18th century. Characteristics of light emily tripp and stephen byrd 2.
May 15, 2012 sometimes we forget about all the factors that go into lighting a portrait. Types of seismic waves are p waves, s waves, and waves. An electromagnetic wave is a transverse wave consisting of oscillating electric and magnetic fields. Body waves take a more direct route through earth instead of around its surface. Characteristics of light authorstream presentation. Ppt characteristics of sound waves powerpoint presentation. Visible light contains all the colors on the color spectrum. When unpolarized light is passed through a polarizer. The transverse nature of light can be demonstrated through polarization. As shown below, an electromagnetic wave is a transverse wave consisting of mutually perpendicular oscillating electric and magnetic fields. Hertz and were shown to have properties similar to.
In a denser medium, such as glass, light travels even more slowly. Calculate the speeds of waves 1, 2, and 3 and record these values in table 1. Seguin high school physics lecture over the characteristics of light waves. The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. Sir isaac newton believed that light was a stream of particles. Properties of light waves, particles and em spectrum interaction with matter absorption re. By the time the light comes back, the rotating mirror has turned a bit and the ray deflects into some angle.
Characteristics of light light is an electromagnetic wave. Characteristics of sound waves sound travels in the form of a wave. Electromagnetic waves are transverse in nature as they propagate by varying the electric and magnetic fields such that the two fields are perpendicular to each other. The higher the frequency, the more energy in the wave. The electromagnetic spectrum includes more than visible light. In 1888, 9 years after maxwells death, radio waves were discovered by heinrich. In transverse waves the particles vibrate perpendicular to the direction of propagation for example, a vibrating string or a water wave in longitudinal waves the particles. Surface waves cause the most damage because they disturb the surface of earth. In defining the characteristics of photovoltaic or solar cells, light is sometimes treated as waves, other times as particles or photons. Its major themes include introductions to the fundamentals of geometrical optics, classical electromagnetic waves and the interference effects associated with those waves, and the foundational ideas of the quantum theory of light.
Light, reflection, and color characteristics of light light is an electromagnetic wave. Visible light waves work by reflecting or absorbing light to produce different colors. Learn the wonders of light, what makes up color, and so much more. The energy carried by ocean waves makes this a thrilling ride, but other waves carry energy, too. The fact is that light exhibits behaviors that are characteristic of both waves and particles. Each wave front has the same total amount of energy. The time dependence of the displacement at any single. Describe the six properties of electromagnetic waves and give everyday. To investigate properties waves by studying reflection, diffraction and refraction of light. Key concepts about waves and sound a pdf handbook with key definitions about waves and sound glossary of waves and sound a reference guide that explains new vocabulary quiz. Christian huygens proposed that light travelled as waves. The electromagnetic wave is having the characteristics of reflection just like the light waves. However, the document should not be uploaded to other servers for distribution to andor display by others. Until about three centuries ago, no one had developed a reasonable theory of the nature of light.
Reflection occurs when a wave bounces off of a material. From ripples on a pond to deep ocean swells, sound waves, and light, all waves share some basic characteristics. This quiz and worksheet combo can help you gauge your knowledge of light waves and traits they possess. Polarized light has vibrations confined to a single plane that is. Mar 24, 2020 this article focuses on the physical characteristics of light and the theoretical models that describe the nature of light. Ups and downs this wind surfer is riding high for now, but that will change soon. Properties of light university of maryland college of. Study of a single wave pulse shows that it is begun with a vibration and is transmitted. Waves wavesrhythmic disturbances that carry energy through matter or space mediummaterial through which a wave transfers energy solid, liquid, gas, or combination electromagnetic waves dont need a medium e. The basic properties of waves are amplitude, wavelength, frequency, and. Waves that seem to be standing still are known as waves.
Frequency is the number of waves passing a given point in 1 second. Electromagnetic waves are ultimately produced by an accelerating charge. Jan 19, 2011 uniform if its physical characteristics do not change at different points isotropic if the physical characteristics of the same in different directions electromagnetic waves are waves that can propagate though no medium. In this unit of the physics classroom tutorial, the focus will be on the wavelike nature of light. As you might already know, a wave has a trough lowest point and a crest highest point. A light ray reflects on a rotating mirror and then bounces off a fixed mirror. Accelerated charges are responsible to produce electromagnetic waves. Describing waves when waves travel along ropes or springs or across the surface of water they set up regular patterns of disturbances. Wave characteristics continued analyze your data 1.
My waves digital and printable interactive notebook brings the use of technology into the classroom. Most waves move through a supporting medium, with the disturbance being a physical displacement of the medium. Apart from these properties, different types of waves have a number of varying characteristics. Characteristics of light newton proposed the particle theory of light to explain the bending of light upon reflection from a mirror or upon refraction when passing from air into water. Longitudinal waves, such as sound, cannot be polarized.
Gaining skill in lighting means taking all four factors into consideration with each photo you take. Electromagnetic spectrum definition, characteristics. Surface waves are waves that travel along the boundary between two different media, such as air and water or liquids of different densities. Propagate in a wave of electromagnetic energy with a few characters that can be measured, namely. Electromagnetic waves light, radio waves, and x rays are. Waves you will be assessed on include microwaves and. We might focus on the direction of that beautiful window light, the color of the fleeting sunset, the dim light in a church or that wall of light created by sun light bouncing off a building. Average the speeds of these three waves to determine the speed of the wave in the spring or rope you are using. Section 1 characteristics of chapter light electromagnetic waves an electromagnetic wave is a wave that consists of oscillating electric and magnetic fields, which radiate outward from the source at the speed of light.
Sound waves, light waves, xrays, microwaves, and ocean waves are but a few examples. By taking multiple images of the same object through a variety of filters, scientists can. Edit my cornell notes, warmups, tests and quizzes, and presentation with my powerpoint version, w. Properties of light presentation pdf teach engineering. Objectives after this presentation, students will be able to. Describe the dual nature of light, as a continuous wave and a discrete particle.
Reflection reflection the angle at which a radio wave is reflected from a smooth metal surface also called the angle of reflectance is always equal to the angle at which it approached the surface also called the angle of incidence. In transverse waves the disturbances are at right angles to the direction of the wave. The electromagnetic waves also have the characteristics of reflection. The distance a wave travels before it starts to repeat is its. How fast the wave vibrates is referred to as its frequency. Listed below are some of the important characteristics and properties of electromagnetic waves. Sometimes we forget about all the factors that go into lighting a portrait. In his view, light was a stream of particles emitted from a light source, entering the eye to stimulate sight. The entire range electromagnetic spectrum is given by radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, xrays, gamma rays and cosmic rays in the increasing order of frequency and decreasing order of wavelength. The wave nature of light was first illustrated through experiments on diffraction and interference.
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