Is the speed of a transverse wave on a string the same as the speed at which a particle on the string moves ? The two speeds, vwave and vparticle, are not the same.

Key Points

1. The type of wave that occurs in a string is called a transverse wave.
2. The period of a wave is indirectly proportional to the frequency of the wave: T=1f T = 1 f .
3. The speed of a wave is proportional to the wavelength and indirectly proportional to the period of the wave: v=λT v = λ T .

90 ms−1.

Summary. The speed of a wave on a string depends on the linear density of the string and the tension in the string. The linear density is mass per unit length of the string. In general, the speed of a wave depends on the square root of the ratio of the elastic property to the inertial property of the medium.

How does the fundamental vibration frequency compare for the thick versus the thin strings? Since v = √F/µ, where F is the tension and µ is the linear mass density (in kg/m), waves travel faster on the thin strings.

Answer: The waves look different because it depends on how fast you move the rope. When you move the rope slowly, bigger but fewer waves will be formed. While when you move the rope fastly, smaller but more waves will be formed.

In a wave phenomenon, energy can move from one location to another, yet the particles of matter in the medium return to their fixed position. A wave transports its energy without transporting matter.

It is important to remember that all waves transfer energy but they do not transfer matter . For example, if a ball is placed on the surface of a pond when ripples move across it, the ball will move up and down but not outwards with the wave.

Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.

What are three things that travel in waves? Sound, energy and radio travel in waves.

One way to categorize waves is on the basis of the direction of movement of the individual particles of the medium relative to the direction that the waves travel. Categorizing waves on this basis leads to three notable categories: transverse waves, longitudinal waves, and surface waves.

The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. The animations below demonstrate both types of wave and illustrate the difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling.

visible light

In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Microwaves (like the ones used in microwave ovens) are a subsection of the radio wave segment of the EM spectrum.

Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

P wave

The mnemonic for the EM spectrum is Roman Men Invented Very Unusual X-Ray Guns which translates to Radio waves, Microwaves, Infrared wave, visible light, Ultraviolet, X-ray and Gamma rays.

red

red light

So visible light has a number of colors and from lowest to highest frequency, we have Roy G Biv. So we used this fictional name, Roy G Biv, to be able to memorize the order of visible light from lowest to highest frequency. So we have Red, Orange, Yellow, Green, Blue, Indigo, and Violet.

The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.

Based on the electromagnetic spectrum, Infrared and Ultraviolet rays lies at the end of the visible spectrum or visible light.

radio waves

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space. This proved that radio waves were a form of light!

B. Explanation: The electromagnetic waves that are sometimes called heat rays are the waves that are in the spectrum of infrared light. The infrared light waves are commonly associated with heat.

Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.

Non-ionizing radiation includes the spectrum of ultraviolet (UV), visible light, infrared (IR), microwave (MW), radio frequency (RF), and extremely low frequency (ELF). Lasers commonly operate in the UV, visible, and IR frequencies.

Infrared (IR) light is used by electrical heaters, cookers for cooking food, short-range communications like remote controls, optical fibres, security systems and thermal imaging cameras which detect people in the dark.