Two waves that do not require a medium to travel would be light waves and gravitational waves. - Zach Harris, B.S. Physics
sound is produced by vibrating a source threw air. +======================= Answer 2: For mechanical waves to traverse we need an elastic medium.
(1) Electromagnetic waves, (2) gravitational waves.
Mechanical Waves:1.Mechanical waves need a material medium for their propagation.2.These waves are produced due to the vibrations of the particles of the medium.3.They have low speed.Electromagnetic Waves:1.Electromagnetic waves do not need any material medium for their propagation.2.They are caused due to change in electric and magnetic fields.3.They have high speed.
There does not have to be a medium. Light does not require a medium. Mechanical waves require a mediumAnswer 2:Not all waves require a medium for their transmission. Mechanical waves require a medium for their transmission because it is the molecules of the medium which cause the wave to propagate. However, electromagnetic waves do NOT require a medium. (for example light)
Here are two types of wave motion depending on the direction of wave propagation and the vibration of particles of the medium:1.Transverse waves:When the particles of a medium vibrate in a direction at right angles to the direction of propagation of the disturbance through the medium, the waves set up in the medium are called transverse waves.2.Longitudinal waves:When the particles of a medium vibrate in the direction of propagation of the disturbance through the medium, the waves set up in the medium are called longitudinal waves
Difference between Longitudinal waves and Transverse wavesIn longitudinal waves the particle vibrates along the direction of propagation of wave whereas in transverse wave the particles vibrate perpendicular along the direction of propagation of wave.In longitudinal wave there is a pressure variation in the medium whereas in transverse waves there is no pressure variation in the medium.In longitudinal waves the waves move in the medium by compression and rarefaction whereas in transverse waves the waves move by forming crests and troughs.Longitudinal waves require a material medium for its propagation whereas Transverse waves travel without a medium.Longitudinal waves don't with a high speed as their speed is 330 m/s in air whereas Transverse wave travel with a very high speed of 3 * 10^8 m/s.Similarities between longitudinal wave and transverse wave1) They travel in a medium with constant speed which is different in different media.2) They obey the laws of reflection and refraction.
Waves that require a medium in which to travel are called mechanical waves. A medium is the substance/matter/material the wave travels in. For example, sound is a mechanical wave. Sound can travel through the mediums of water or air or solid objects. All three of these are mediums through which sound can travel.Answer 2:A wave is a moving vibration through some material. That material is called the medium. Well known examples are the surface waves of water (water is the medium) and sound (air is the medium).
light and sound do not have mass. Light is electromagnetic wave transverse in nature. Sound is longitudinal wave. But sound needs material medium so it is mechanical wave. Moreover matter is the one which occupies the space. But waves do not occupy but traverse in space. Electromagnetic waves don't need material medium, but sound waves do need a material medium. False physics to assume that light has no mass. Energy = mc^2 =hf=cp. Light has energy and momentum. p=h/w =mv.
Mechanical Waves- caused by vibration- needs medium (air) to propagate (move)Electromagnetic Waves- Caused my vibrating 'charged' particles- doesn't need meduim (air) to propagate (move)(basically in can still move in space )Hope that answers your question !
1. Light waves / Electromagnetic waves (includes gamma radiation)2. Sound waves - while sound waves are not objects, and they require a medium to travel through, we are still exposed to sound daily.
First and foremost is that rigidity is essential for transverse waves to travel through the medium. But in longitudinal it is not essential. So transverse waves cannot be propagated through gasses. Second, the vibrations of particles of the medium will be perpendicular to the direction of motion of the wave. Whereas in the case of longitudinal waves, the vibrations are in the same direction as that of the wave propagation.
Suspicions and Certainties
Electromagnetic waves aren't really waves in the same sense that water waves or sound waves are; no medium is necessary. See below for an alternative ... "theory." ---- The electromagnetic wave medium is not understood by physicists. The medium is z, the 'free space impedance" what Maxwell called the Ether. The Ether was dismissed by physicists in the M-M "experiment". The experiment was bad the ether is z=375 ohms.The ether z=W/Q, where W is the magnetic charge in Webers (volt seconds) and Q is the electric charge in Coulombs. W= 500 e-18 Webers and Q= 4/3 e-18 Coulombs.z is related to Planck's Action Constant h=2/3e-33 Joule seconds = WQ!Electromagnetic waves energy E=hf = WQf, the medium exists.
All electromagnetic waves, light, x-rays, etc travel at the same speed. Sound waves require a medium to travel thru, so they cannot travel thru a vacuum.
Electric waves travel through a medium or a vacuum. The vacuum is a medium manifested by the free space resistance z = 375 Ohms. Z is realted to Planck's Constant h=zQ^2, where Q is the free space charge Q= 4/3 E-18 Coulombs.
There is no answer to this, or rather there are several. What is the medium? Are you talking about electromagnetic or ocean waves?
according to the equation v=1/2{gamma *pressure /density} sound waves are slowed down by=decreasing pressure and increasing volume,temparature,density of the medium
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Sound waves are different than light waves. Properties of sound waves are 1. It is a longitudinal wave 2. It requires Material medium for propogation of energy. 3. Speed of sound depends on the medium and temperature 4. Sound waves best travel in sound 5. Their speed varies from 330 m/s in air at 0 degree centigrade. where as 6000 m/s in steel. It also undergoes reflection , interferance . They are measured in decibals.
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Sound waves and Light waves comparison: 1)Light waves are transverse EM waves while sound waves are the longitudinal waves in air. 2)Light waves can pass through even vacuum while sound waves cannot pass through free space, they always require a material medium essential for them to propagate . 3)Velocity of light waves in free space = 3x10^8 n m/s and velocity of sound waves in air at NTP= 332 m/s.
Mechanical waves are classified by how they move. 2 types of mechanical waves are transverse waves and longitudinal waves.