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# Among the statements below which is not a property of an electromagnetic waves em

Which of the following is not a property of electromagnetic (EM) waves? Group of answer choices: EM waves can be polarized. EM waves are transverse waves 3. both electric and magnetic field are perpendicular to each other and perpendicular to direction of propagation. 4. These waves don't require any material medium to propagate, they can propagate in vacuum as well. So, the false statement will be the statement given in the option (C) Hence, the correct option is (C Property 3: Electromagnetic waves travel with a constant velocity in vacuum. The speed of the waves is 3 x 10 8 m/s. Property 4: Electromagnetic waves are non-mechanical waves. They do not require any material medium for propagation. Property 5: They obey the equation c = fλ. Here, f is the frequency is Hertz and λ is the wavelength metres Electromagnetic waves. Electromagnetic radiation, is a form of energy emitted by moving charged particles. As it travels through space it behaves like a wave, and has an oscillating electric field component and an oscillating magnetic field. These waves oscillate perpendicularly to and in phase with one another Show answers. Question 1. SURVEY. Ungraded. 30 seconds. Report an issue. Q. The electromagnetic spectrum shows the complete range of frequencies of electromagnetic waves from the lowest to the highest, including , in order, radio, infrared, visible light, ultraviolet, x-ray, and gamma rays waves. Which of the following statements below explains.

An electromagnetic wave is a transverse wave while sound is a longitudinal (compression) wave. Secondly, sound waves need a medium to travel through. On the other hand, electromagnetic waves do not.. The energy in an electromagnetic wave is divided equally between electric and magnetic vectors. Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of the wave. These waves do not require any material medium for propagatio mechanical waves are a disturbance in matter that carries energy from one place to another. mechanical waves do not require matter to travel through. Nice work! You just studied 106 terms! Now up your study game with Learn mode EM waves that have the longes wavelengths, lowest frequencies, lowest energies part of the EM spectrum consists of frequencies above those of visible light and below x-rays. X-rays. have frequencies from about 10 to the 16th Hz to 10 to the 21 hz Electromagnetic waves chapter 12. 42 terms. Tatum1593. Mechanical Waves. 70 terms. akomin12.

Which of the following statement is false for the properties of em waves? (a) The energy of em wave is divided equally between electric and magnetic fields. (b) Both electric and magnetic field vectors are parallel to each and perpendicular to the direction of propagation of wave. (c) These waves do not require any material medium for propagation Electromagnetic Waves DRAFT. 25 minutes ago. by ka_pangilinan_16862. Played 0 times. 0. 10th grade . Science. EM Waves with the longest wavelength. answer choices . radio. infrared. gamma. x-ray. Which of the following is NOT TRUE about infrared waves? answer choice Electromagnetic waves are transverse waves with a wide range of different properties and uses In electromagnetic waves the phase difference between electric and magnetic field vectors are. Explaination: (a) Electric and magnetic field vectors always vary in same phase. 5. The quantity represents. 6. In electromagnetic wave if ue and um are mean electric and magnetic energy densities respectively, then. 7 Receiving Electromagnetic Waves. Electromagnetic waves carry energy away from their source, similar to a sound wave carrying energy away from a standing wave on a guitar string. An antenna for receiving EM signals works in reverse. And like antennas that produce EM waves, receiver antennas are specially designed to resonate at particular.

Examples of electromagnetic waves include radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays. Radio waves have the lowest energy and frequency and the longest. What are Electromagnetic Waves. Electromagnetic waves consist of disturbances that can travel without a medium. For example, the light from the Sun is an electromagnetic wave that travels through the vacuum between the Earth and the Sun. Electromagnetic waves can do this because they do not rely on vibrating molecules Anatomy of an Electromagnetic Wave. Energy, a measure of the ability to do work, comes in many forms and can transform from one type to another. Examples of stored or potential energy include batteries and water behind a dam. Objects in motion are examples of kinetic energy. Charged particles—such as electrons and protons—create. Check the below NCERT MCQ Questions for Class 12 Physics Chapter 8 Electromagnetic Waves with Answers Pdf free download. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. We have provided Electromagnetic Waves Class 12 Physics MCQs Questions with Answers to help students understand the concept very well Who among the scientists below had formulated the Electromagnetic Wave Theory? a. Ampere b. Hertz c. Maxwell d. Oersted 2. Which of the following statements is incorrect about EM waves? a. EM waves can transfer energy through medium and vacuum. b. EM waves vary in speed, frequency and wavelength. c. EM waves have an electric and magnetic fields. d

### Solved: Which Of The Following Is Not A Property Of Electr

Some other forms of electromagnetic radiation are X-rays, microwaves, infrared radiation, AM and FM radio waves, and ultraviolet radiation. The properties of electromagnetic radiation depend strongly on its frequency. Frequency is the rate at which the radiating electromagnetic field is oscillating The German physicist Heinrich Hertz (1857-1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that not only confirmed the existence of electromagnetic waves but also verified that they travel at the speed of light wave equation. In Section 8.4 we talk about the energy contained in an electromagnetic wave, and in particular the energy °ow which is described by the Poynting vetor. In Section 8.5 we talk about the momentum of an electromagnetic wave. We saw in Section 4.4 that the waves we've discussed so far carry energy but not momentum.

### Which of the following statement is false for the

Electromagnetic radiation consists of two perpendicular waves, one electric and one magnetic, propagating at the speed of light (c). Electromagnetic radiation is radiant energy that includes radio waves, microwaves, visible light, x-rays, and gamma rays, which differ in their frequencies and wavelengths 1e) Which of these is NOT a property of a photon? A) It has a particle-like nature B) It has an energy proportional to its frequency C) It travels faster than the speed of light D) A large number of photons combine to behave as a wave 1f) You are comparing two electromagnetic waves. You measure the maximum E field of one of them to be twice as.

### What are Properties of Electromagnetic Waves

• Electromagnetic radiation is reflected or absorbed mainly by several gases in the Earth's atmosphere, among the most important being water vapor, carbon dioxide, and ozone. Some radiation, such as visible light, largely passes (is transmitted) through the atmosphere. These regions of the spectrum with wavelengths that can pass through the.
• Electromagnetic waves bring energy into a system by virtue of their electric and magnetic fields. These fields can exert forces and move charges in the system and, thus, do work on them. However, there is energy in an electromagnetic wave itself, whether it is absorbed or not. Once created, the fields carry energy away from a source
• Electromagnetic waves travel with a constant velocity of 3 x 108 ms-1 in vacuum. Electromagnetic waves are not deflected by electric or magnetic field. Electromagnetic waves can show interference or diffraction. Electromagnetic waves are transverse waves. Electromagnetic waves may be polarized. Electromagnetic waves need no medium of propagation
• Electromagnetic waves are a type of transverse waves. These waves do not require a medium to travel. As the name of the waves imply, these waves show electrical and magnetic properties. No any charge occur in the waves. Electromagnetic waves work by the laws of reflection and refraction. They travel as straight lines in a vacuum at a speed of 3.
• Sensor of electromagnetic waves c. Transducer between guided wave & free space wave d. Metallic device for radiating or receiving radio waves. ANSWER: Metallic device for radiating or receiving radio waves. 13) Under which conditions of charge does the radiation occur through wire antenna? a. For a charge with no motion b
• Electromagnetic radiation or EM radiation is a noticeable part of the spectrum. It is one kind of way to travel energy through space. The different forms of electromagnetic energy mainly include heat from the fire, the sunlight, microwave energy while cooking, rays from X-ray, etc. These energy forms are very different from each other but they exhibit wavelike properties
• Facts about Electromagnetic Waves 4: non-ionizing radiation. The non-ionizing radiation occurs on the electromagnetic radiation of lower frequency of waves. It might occur with radio waves, microwaves, infrared and visible light. The energy produced is not enough to break the chemical bonds or ionize molecules or atoms

Each electromagnetic wave has a unique wavelength/frequency range and has distinct characteristics. Arranged in terms of decreasing wavelengths, these 7 types of electromagnetic waves are Radio waves, Microwaves, Infrared light, Visible light, Ultraviolet light, X-rays, and Gamma-rays These properties are closely and inversely related: The larger the frequency, the smaller the wavelength — and vice versa. A third is energy, which is similar to frequency in that the higher the frequency of the light wave, the more energy it carries. Your eyes detect electromagnetic waves that are roughly the size of a virus

### Electromagnetic Waves and their Properties Boundless Physic

(a)€€€€ The diagram represents the electromagnetic spectrum. Four of the waves have not been named. Draw lines to join each of the waves to its correct position in the electromagnetic spectrum. One has been done for you. € (2) 3 (b)€€€€ Complete the following sentence by choosing the correct answer and crossing out in th Conversely, radio waves are electromagnetic waves, like visible light, infrared, ultraviolet, X-rays, and gamma rays. EM waves don't need a medium in which to propagate; they can travel through a vacuum, such as outer space. A radio works because sound waves played by the D.J. at the radio station are converted into electromagnetic waves. The article below elaborates on the origin and theory of electromagnetic waves. Electromagnetism is defined as the combination of alternating electric and magnetic fields created by accelerated charges that propagate out from these charges at the speed of light in the form of waves. These are called electromagnetic waves or radiation 11.3 Electromagnetic spectrum (ESADK). EM radiation is classified into types according to the frequency of the wave: these types include, in order of increasing frequency, radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays

### EM spectrum Science - Quiziz

1. es. One disadvantage is that, with such low frequency, one can only modulate their amplitude or frequency very slowly (eg with morse code) so they cannot carry much information
2. Carbon-based composites are widely utilized in the electromagnetic (EM) wave absorbing field in virtue of good dielectric properties, low density, and excellent environmental resistance. Based on the strategy of constructing the heterostructure interfaces, the C/ZnO nanofiber composites with unique 3D cross-linked network have been successfully.
3. The properties of electromagnetic ﬁelds and waves are most commonly discussed in terms of the electric ﬁeld E(r,t) and the magnetic induction ﬁeld B(r,t). The vector r denotes the location in space where the ﬁelds are evaluated. Similarly, t is the time at which the ﬁelds are evaluated. Note that the choice of E and B is ar
4. The history of electromagnetic theory begins with ancient measures to understand atmospheric electricity, in particular lightning. People then had little understanding of electricity, and were unable to explain the phenomena. Scientific understanding into the nature of electricity grew throughout the eighteenth and nineteenth centuries through the work of researchers such as Coulomb, Ampère.
5. Electromagnetic waves are different from mechanical waves in that they can transmit energy and travel through a vacuum. Electromagnetic waves are classified according to their frequency. The different types of waves have different uses and functions in our everyday lives. The most important of these is visible light, which enables us to see
6. The term electromagnetic radiation, coined by Sir James Clerk Maxwell, is derived from the characteristic electric and magnetic properties common to all forms of this wave-like energy, as manifested by the generation of both electrical and magnetic oscillating fields as the waves propagate through space. Visible light represents only a small.

Which of the answers is true about seismic waves? A. Seismic waves travel through the Earth while carrying energy. B. The seismic waves speed and path are depended on the material of which the waves go through.***** C. Seismic . Science. What is the main difference between mechanical and electromagnetic waves? A Summary, (1) photon is not a wave, but it is the mutual energy flow. The mutual energy flow is built by the retarded wave sends from an emitter and the advanced wave sends from an absorber. (2) there are 4 waves, retarded wave, advanced wave and two time-reversal waves. All 4 waves cancel each other These waves that do not require a medium for transmission and regulate our way of living in numerous ways. They help us communicate, cook, and even solve complex medical issues. From the radiation produced by your mobile phone to that derived from X-ray check-ups and airport control, electromagnetic waves seem to be ever-present in everyday life Daniel T. DeBaun: Engineer, Author & Telecommunications Executive Daniel T. DeBaun is an internationally recognized and influential expert in Electromagnetic Radiation (EMF) and shielding electronic emissions, with a particular focus on the effect of exposure from mobile devices such as laptops, tablets and cell phones. Daniel's concern regarding the health impact of electronic radiation.

### Which of the following does not belong in the

Advanced; Basic; The Electromagnetic Spectrum. As it was explained in the Introductory Article on the Electromagnetic Spectrum, electromagnetic radiation can be described as a stream of photons, each traveling in a wave-like pattern, carrying energy and moving at the speed of light.In that section, it was pointed out that the only difference between radio waves, visible light and gamma rays is. electromagnetic waves. Which statement is true about the speed of an electromagnetic wave? which include X -ray, infrared, and ultraviolet waves among others. The diagram below shows the electromagnetic spectrum. Which of these statements describes a property that is shared by infrared waves and ultraviolet waves

### Electromagnetic waves MCQ For NEET - BYJU

What is electromagnetic radiation? The electromagnetic spectrum is a map of all the types of light that we can identify. It separates all the types of light by wavelength because that directly relates to how energetic the wave is. More energetic waves have shorter wavelengths while less energetic waves have longer wavelengths Longer wavelength, lower frequency waves such as heat and radio have less energy than shorter wavelength, higher frequency waves like X and gamma rays. Not all electromagnetic (EM) radiation is ionizing. Only the high frequency portion of the electromagnetic spectrum, which includes X rays and gamma rays, is ionizing Electromagnetic (EM) wave absorbers can be categorized into two types: resonant absorbers and broadband absorbers. 1 Resonant absorbers rely on the material interacting with the incident radiation in a resonant way at a specific frequency, ω 0 (where the wavelength corresponding to ω 0 is λ 0 = 2 πc/ω 0 and c is the speed of light in. Chapter 22 - Electromagnetic Waves - Misconceptual CHAPTER 22: Electromagnetic Waves Answers to Questions 1. If the direction of travel for the EM wave is north and the electric field oscillates east-west, then the magnetic field must oscillate up and down. Chapter 22 Electromagnetic Waves Answers To Question Figure 13.5.2 Electromagnetic waves are used to carry communications signals by varying the wave's amplitude (AM), its frequency (FM), or its phase. Cell phone conversations, and television voice and video images are commonly transmitted as digital data, by converting the signal into a sequence of binary ones and zeros

### Mechanical and Electromagnetic Waves Test Flashcards Quizle

We find that ground EM power decay follows an inverse power law with a power ~2 over distance, which confirms a well-known far-field decay for EM waves in free space. In space, at the equator. Radio waves, television waves, and microwaves are all types of electromagnetic waves. They only differ from each other in wavelength. Waves in the electromagnetic spectrum vary in size from very long radio waves the size of buildings, to very short gamma-rays smaller than the size of the nucleus of an atom Radio waves with wavelengths between about 5 cm and 10 m easily make it through the atmosphere. This is why these waves are probably the third most-recognizable portion of the electromagnetic spectrum behind visible light and infrared. The atmosphere's transparency to waves permits the technology of radio, as well as sophisticated radio. Electromagnetic Waves in Plasmas 5.1 General Treatment of Linear Waves in Anisotropic Medium Start with general approach to waves in a linear Medium: Maxwell: 1 ∂E ∂B ∧B = µ oj + ; (5.1) c2 ∂t ∧E = − ∂t we keep all the medium's response explicit in j. Plasma is (inﬁnite and) uniform so we Fourier analyze in space and time

### Electromagnetic Waves Flashcards Quizle

1. The electromagnetic spectrum—a closer look. Photo: Diagram of electromagnetic spectrum courtesy of NASA.. All the different kinds of electromagnetic radiation are essentially the same stuff as light: they're forms of energy that travel in straight lines, at the speed of light (300,000 km or 186,000 miles per second), when electrical and magnetic vibrations wiggle from side to side
2. Sound waves are mechanical waves whereas electromagnetic waves are not mechanical waves. Therefore, sound waves require a medium for their propagation whereas electromagnetic waves do not require a medium. This is the main difference between sound waves and electromagnetic waves. There are many other differences between these two
3. d that VAERS is not without its criticism. One common criticism we've seen from Facebook fact-checkers, for example, is there is no proof that the vaccine was actually the cause of these events
4. Extremely low frequency (ELF) fields includes alternating current (AC) fields and other electromagnetic, non-ionizing radiation from 1 Hz to 300 Hz. ELF fields at 60 Hz are produced by power lines, electrical wiring, and electrical equipment. Some epidemiological studies have suggested increased.
5. Traveling Waves: Crash Course Physics #17.A video is discussing waves the properties of different types of waves. FACT: In almost all instances light travels faster than sound, but not always.See instances where sound can travel faster than light.. TIP: The carrier of electromagnetic force is the photon.The photon carries electromagnetic radiation
6. 1. Which type of electromagnetic radiation has the highest energy? A. radio waves C. visible light B. microwaves D. gamma rays 2. One of the local radio stations broadcasts Wildcats basketball games at a frequency of 98.1 MHz. What is the wavelength of these electromagnetic waves? A. 6.50 × 10 −26 J C. 6.12 m B. 3.06 m D. 3.06 × 106 m 3

Chapter 7. Plane Electromagnetic Waves and Wave Propagation 7.1 Plane Monochromatic Waves in Nonconducting Media One of the most important consequences of the Maxwell equations is the equations for electromagnetic wave propagation in a linear medium. In the absence of free charge and current densities the Maxwell equations ar The electromagnetic spectrum illustrates the range of electromagnetic radiation. Light travels as a wave and different wavelengths represent different types of electromagnetic radiation His research team found electromagnetic (EM) signals consistently produced in dilute solutions of the HIV virus DNA in water. HIV is a RNA virus, normally detected in the blood stream of people infected with the virus. The viral RNA is not responsible for the EM signal. Instead, it the complementary DNA (cDNA) sequence that does the trick The lessons cover from the specification: 6.6.2.1 Types of Electromagnetic Waves 6.6.2.2 Properties of Electromagnetic Waves 1 6.6.2.3 Properties of Electromagnetic Waves 2 6.6.2.4 Uses and Applications of Electromagnetic Waves Included for each lesson is the PowerPoint and additional resources that accompany them

### Physics MCQs for Class 12 Chapter 8 Electromagnetic Waves

• Maxwell's equations are a set of four differential equations that form the theoretical basis for describing classical electromagnetism: Gauss's law: Electric charges produce an electric field. The electric flux across a closed surface is proportional to the charge enclosed. Gauss's law for magnetism: There are no magnetic monopoles. The magnetic flux across a closed surface is zero
• What is electromagnetic radiation? The electromagnetic spectrum is a map of all the types of light that we can identify. It separates all the types of light by wavelength because that directly relates to how energetic the wave is. More energetic waves have shorter wavelengths while less energetic waves have longer wavelengths
• Fig 1. Wavelength regions of the electromagnetic spectrum. The earth's atmosphere absorbs energy at less than 0.3 µm, which includes the entire γ-ray and X-ray regions and part of the UV region. These regions of the electromagnetic spectrum are therefore not used for remote sensing. However, some earth surface materials fluoresce or emit.
• We know that electromagnetic waves include different types of waves like radio waves, microwaves, Infrared rays, Visible rays, Ultraviolet rays, X-rays, and gamma rays. Electromagnetic Spectrum is the classification of these waves according to their frequency
• Hope that helps. Electromagnetic radiations are electromagnetic waves in the electromagnetic field. It is disturbance of the electromagnetic field propagated with the velocity of light. Electromagnetic field itself is a seat of energy. u = 1 / 2 ( ϵ 0 E 2 + B 2 / μ 0) Where u is the energy density of the em field
• There are 7 regions in the electromagnetic spectrum and they are gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves and radio waves. All types of electromagnetic radiation are transverse waves and they all travel at the same speed in a vacuum. The regions of the electromagnetic spectrum are explained below in order of.
• Electromagnetic waves share many properties with ordinary waves, but they also have a number of unique characteristics. Using the figure below and your knowledge from Parts A and B, complete the following statements about the specific properties of electromagnetic radiation. Ranking Task: Reflecting Telescopes and Light Collection Part

### Electromagnetic Waves Science Quiz - Quiziz

• Mechanical waves are usually not made from anything because they are created by a disturbance or vibration in a medium like in matter like plasma, liquid, solid, and gas, whereas electromagnetic waves are created by something like electromagnetic energy and it is the most important energy in the universe for the propagation
• As I mentioned briefly before, radio waves are also light waves. Infrared radiation is a kind of light wave (usually abbreviated as IR). The same is true of ultraviolet waves (UV), x-rays, and gamma-rays. These are all different kinds of light. The difference between these other types of light and visible light is again the wavelength of the light
• EM waves are created by an oscillating electric charge which produces varying electric and magnetic field at right angles to each other. Propagate as a transverse wave and are able to move through a vacuum, since no particles are involved The speed of EM waves is 2.99792458 x 108 m/s = 'c'. B. THE ELECTROMAGNETIC SPECTRUM Source: Physics, 8.
• On the other side, light waves are very very small waves, their size ( wavelength ) is comparable to the size of atoms in the wall. And that is why they are not able to go through the wall. ( As a mosquito cannot fly when it is rainy.) CONCLUSION1: The radio and light waves are part of the electromagnetic spectrum, but are very different
• Electromagnetic Field Theory objective type questions with answers (MCQs) and explanation for GATE preparation. This GATE exam practice test on Electromagnetic Field Theory is useful for electronic and communication engineers & electrical engineers preparing for MTech and placements into PSUs. Theory, numerical and concept based questions from GATE notes, lectures and tutorials on.
• A light wave is an electromagnetic wave that travels through the vacuum of outer space. Light waves are produced by vibrating electric charges. The nature of such electromagnetic waves is beyond the scope of The Physics Classroom Tutorial.For our purposes, it is sufficient to merely say that an electromagnetic wave is a transverse wave that has both an electric and a magnetic component

### Common properties - Electromagnetic waves and radar - CCEA

1. Wireless Technology and Electromagnetic Radiation Alters Bee Behavior and Physiology Electromagnetic fields from powerlines, cell phones, cell towers and wireless has been shown to negatively impact birds, bees, wildlife and our environment in numerous peer reviewed research studies. Specifically, electromagnetic radiation has been found to alter bee behavior, produce biochemical changes and.
2. Electromagnetic Waves. These waves are a type of energy waves and it includes both the fields like an electric as well as a magnetic field. These waves are dissimilar compare with mechanical waves because they transmit energy as well as travels throughout a vacuum. The classification of these waves can be done based on their frequency
3. ate adverse electromagnetic energy, and have attracted extensive interests [1,2,3].Broadband microwave absorption is critical for a microwave absorption (MA) material since microwave electronic devices work in a wide frequency range

Electromagnetic Induction - A process by which electrical current is induced in an electrical conductor by a changing magnetic field that acts upon the conductor. to take place is that the conductor, which is often a piece of wire, must be perpendicular to the magnetic lines of force Electromagnetic wave definition is - one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays o The speed of the wave depends upon the mechanical properties of the medium. o Some waves are periodic (particles undergo back and forth displacement as in a sound wave.) o Some waves are sinusoidal (paricles undergo up and down displacement as in a wave on a string.) 2. Electromagnetic o Examples -- light waves, radio waves, microwaves, X. A good way to remember the order of the colors is to note that the first letters of the colors spell out the name ROY G. BIV. We can think of light traveling in waves with properties of wavelength and frequency. Wavelength is the distance between identical locations on adjacent waves Wireless underground sensor networks (WUSNs) are networks of sensor nodes operating below the ground surface, which are envisioned to provide real-time monitoring capabilities in the complex underground environments consisting of soil, water, oil, and other components. In this paper, we investigate the possibilities and limitations of using WUSNs for increasing the efficiency of oil recovery.

### Physics MCQs for Class 12 with Answers Chapter 8

• Some of these waves are called radio waves. Radio waves are a type of electromagnetic radiation, a kind of energy that also includes visible light. Radio waves are not harmful but are in fact.
• imum reflection loss (RL) of −41.6 dB was observed at 4.7 GHz with the thickness of 3.8 mm and the RL values below −10 dB were obtained in the range of 3.9-15.0 GHz with the corresponding.
• Radio waves have the longest wavelengths in the EM spectrum, according to NASA, ranging from about 0.04 inches (1 millimeter) to more than 62 miles (100 kilometers). They also have the lowest.
• es the color. EM radiation is an electric field with magnetic properties that propagate from one point to another, or radiate outward. EM radiation is a wave with frequency and amplitude. Frequency refers to how many waves pass a stationary point per second, while amplitude measures the height of a wave
• For example, waves that must travel through a medium are called mechanical waves. Sound waves and water waves are mechanical waves, as are seismic waves. Electromagnetic (EM) waves—light, radio waves, microwaves, and other forms of electromagnetic radiation—do not require a medium and can travel through a vacuum. Types of Waves