The micron is the basic unit for measuring the wavelength of electromagnetic waves. Basic electromagnetic wave properties java tutorial olympus. When all three are present, wave phenomena always occur. Another property is the amplitude, which corresponds to loudness for a sound wave or. This chapter describes some properties of wavesproperties like interference, beats, reflection, and refraction. Furthermore, as you will see, these principles are a great practical help both in understanding particular wave phenomena and in solving problems. Properties of waves exploring wave motion 15 duration. Rotate to landscape screen format on a mobile phone or small tablet to use the mathway widget, a free math problem solver that answers your questions with stepbystep explanations. The pdf format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The suns electromagnetic waves propagate through space and into the earths atmosphere. The law of reflection states that the angle of incidence is equal to the angle of reflection. Choose from 500 different sets of 6 properties waves flashcards on quizlet. Wave properties and behaviors, electromagnetic spectrum.
Listed below are some of the important characteristics and properties of electromagnetic waves. In this article, we get to grips with the different kinds of waves and look at the key characteristics of all waves their wavelength, period, frequency, speed and amplitude. All electromagnetic waves must travel in a vacuum with the same speed, a speed that we now call the speed of light. These concepts are important for describing waves of all kinds.
I can explain the relationship among visible light, the electromagnetic spectrum and sight. Waves are used for communicating information and for carrying energy. Phet sims are based on extensive education research and engage students through an intuitive, gamelike environment where students learn through exploration and discovery. All em waves are made up of photons that travel through space until they interact with matter. A releasing your unlimited creativity discussion topic. Kids learn about the properties waves in the science of physics including amplitude, wavelength, frequency, period, and speed.
Some characteristics shared by all electromagnetic waves are that they all travel at the speed of light and their transmission does not need a medium. Basic electromagnetic wave properties java tutorial. The behaviour of waves affects us every second of our lives. Pdf light and electromagnetic waves teaching in engineering. What are the characteristics of electromagnetic waves. Information could be encoded in the frequency content, intensity, or polarization of the electromagnetic wave. Electromagnetic radiation can either acts as a wave or a particle, a photon. The speed of electromagnetic waves, their wavelengths and frequencies and how to calculate wavelength or wave frequency. Electromagnetic waves read physics ck12 foundation. The information is propagated by electromagnetic radi. Waves do not transport the matter through which they travel.
Most of the electromagnetic energy on the earth originates from the sun. Light or electromagnetic waves are caused by a upanddown motion of electric and magnetic fields, thus making them transverse waves. If the wave is in a vacuum, nothing changes other than amplitude and phase your beam spreads out. Waves properties of waves enrichment activity part a 1. Light is an em wave since the speed of em waves is the same as the speed of light. Some of the field components are related by the properties of the medium in. Seeing, hearing, feeling warmth, surfing, tuning the radio, using a cellphone these and many more activities involve waves. Electromagnetic waves are propagated by oscillating electric and magnetic fields oscillating at right angles to each other. If the wave enters a second material, everything can change including frequency. Electromagnetic waves, waves from alevel physics tutor. What two properties of em waves change from one end of the.
Electromagnetic waves properties of electromagnetic waves. There are many properties that scientists use to describe waves. There are buttons on the puzzle so that you can get a clean page, in either html or pdf, that you can use your browsers print button to print. Also, as a bonus answer, energy increases as you go higher. Gcse physics properties of waves describe wave motion in terms of amplitude, wavelength, frequency and period. Waves and wave properties the following lecture material aligns with the slides. For a sound wave, this corresponds to how high or how low a note sounds. Waves travel at different speeds in different materials the speed of a wave is determined by the properties of the material, or medium, through which it travels. What two properties of em waves change from one end of the em spectrum to the other.
The physics of waves version date february 15, 2015. Properties of waves study guide waveis a way that energy is carried from place to placeenergy the ability to move or cause change to matter mattereverything in the universe that has mass and takes up space vacuumno air inertiaan object in motion will stay in motion same direction and speed until a force acts on it. Electromagnetic waves are transverse in nature as they propagate by varying the electric and magnetic. A wave can move through matter called a medium, but some waves do not need a medium to be able to move. Notes on wave properties and interference definition a form of energy transfer between objects, or that which transmits energy. Properties of waves study guide winstonsalemforsyth. Alevel physicswave propertieswaves wikibooks, open. The study of waves is, perhaps, truly the central subject of physics. We deal with both normal and nonnormal angles of incidence. Pdf suggestion of physics laboratory exercises and discussion of the physics laboratory curricula for engineering majors where the properties of light. Since we will be studying electromagnetic waves, let s. Learn 6 properties waves with free interactive flashcards.
The electromagnetic em spectrum encompasses all wave frequencies, including radio, visible light and xrays. Energies associated with waves in the tutorial appear beneath the window and are given in units of kjmole. To adjust the wavelength and simultaneously, the frequency of the wave, translate either the wavelength or frequency sliders to the left or right. Electromagnetic waves electromagnetic em radiation is created whenever charges accelerate. Electromagnetic waves do not need a material medium to travel through, so they can travel through a. As a particle, em is represented as a photon, which transports energy. Waves change at b oundaries of media so the properties of the medium determine the wave o depth of water, tension and density of rope, temperature of air, etc. Electromagnetic waves include, radio waves, microwaves, infrared, light, ultraviolet, xrays, and gamma rays. Backandforth motion creates compression or longitudinal waves. Some of the properties which are common to all electromagnetic waves are amplitude, a characteristic frequency and wavelength, and the ability to travel through a vacuum at the same speed, which is commonly referred to as the speed of light. I hope to convert you to a way of thinking about waves that will permanently change the way you look at the world. Wavelength gets smaller the higher you go, frequency increases the higher you go.
The subject of interaction of electromagnetic waves and magnetized. Pdf here we give a brief summary of the features of the theory that are needed to. The nature of waves summary the physics hypertextbook. The grades of the quiz will be taken into you ca for semester 2, and you can only do it once, so please make sure you understand the content of this unit. Naturally, the focus will be on sound waves, but the principles apply equally to.
Chapter 2 the properties of electromagnetic radiation radio jove. The longest waves are radio waves, which have wavelengths of many kilometres. Waves involving springsmasses, strings, and air molecules are things we can apply our intuition to. Now there were several additional interesting observations that has been about these electromagnetic waves that can act a waves or as particles. The shortest waves are gamma rays, which have wavelengths of 10e6 microns or less.
Characteristics of electromagnetic wave properties, wave. Which property of electromagnetic waves remains the same. Properties of waves examples, solutions, videos, notes. Every form of electromagnetic radiation, including visible light, oscillates in a periodic fashion with peaks and valleys, and displaying a characteristic amplitude. When sound waves, water waves, or mechanical waves pass through a substance, the particles in the substance vibrate in a specific order. Waves in which the medium moves at right angles to the direction of the wave. Lei when an electromagnetic wave travels from one medium to another its speed changes either increases or. They are all transverse waves consisting of magnetic and electric fields oscillating at right angles to each other. Some other forms of electromagnetic radiation are xrays, microwaves, infrared radiation, am and fm radio waves, and ultraviolet radiation.
Properties of waves reflection when waves encounter a barrier, some reflection occurs. For a light wave, it corresponds to the colour of light. The source that produce them and methods of their detection are different, but they have the following common properties. Founded in 2002 by nobel laureate carl wieman, the phet interactive simulations project at the university of colorado boulder creates free interactive math and science simulations. Electromagnetic waves and their properties boundless physics. Electromagnetic waves can exist at any frequency, not just at the frequencies of visible light. Introduction to describe a wave, you need to know a few of its properties.
This was the first prediction of radio waves, xrays, etc. The spectrum of waves is divided into sections based on wavelength. Notes on wave properties michigan state university. These are called electromagnetic waves or em waves. Both have the same speed because the frequency of wave b is twice the frequency of wave a, but the wavelength of wave a is twice the wavelength of. 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. The sun actually radiates electromagnetic energy at several different wavelengths and frequencies, ranging from gamma rays to radio waves. Electromagnetic waves are a selfpropagating transverse wave of oscillating electric and magnetic fields. The charge particle being accelerated act as the pebble hitting the pond and the ripples on the pool of water is like the electromagnetic waves radiating outward from the vibration. A wave is a disturbance that carries energy from one place to another. What is the wavelength of a microwave that has a frequency of 4. In order for frequency to change, that second material must either b.
Electromagnetic waves are dealt with more fully in another section of this book. Medium a substance or material that carries a wave air, liquid, solid. But well now switch gears and talk about electromagnetic waves. You can stretch out a slinky along the floor and give one end a back. Properties of electromagnetic waves teaching resources. This occurs, for example, when timevarying currents run up and down the transmitter of a radio station or when atoms bounce around inside a fluorescent light bulb.
268 1364 851 556 460 607 1054 321 294 1386 1318 759 95 1201 780 507 412 1014 145 164 118 1154 1496 824 556 1318 1402 694 1326 1549 178 683 449 626 504 1001 587 694 708 184 1424 866 594 914 1209 623 1246 1377 340