Particles and waves 2

When does outer space begin

'Outer space' begins about 100 km above the Earth, where the shell of air around our planet disappears

A natural force that can cause mechanical wave to move

(like an earthquake, wind, vibration, etc.)

Mechanical waves have

A medium

What is em

A wave

Longitudinal waves and transverse difference

Based on the orientation of particle motion and direction of energy, there are three categories: longitudinal and transverse

Mechanical circular transverse

Circular Transverse: medium pieces move in circles around wave motion direction.

When does high pressure come through from longitudinal wave

Compression occurs when particles move close together

What's disticnts waves that makes them different

Different types of waves have different sets of characteristics. Based on the orientation of particle motion and direction of energy, there are three categories:

The medium should have one characteristic

Elastic

What type of medium I s needed for mechanical wave

Elastic Medium

Longitudinal waves examples

Ex. Sound waves and compression waves and p waves sound waves, seismic P-waves, and ultrasound waves

Longitudnal waves examples

Example - Sound Waves, Pressure Waves.

What can electrons do

For example, a beam of electrons can be diffracted just like any other beam of electromagnetic radiation or water wave.

Describe the pressure in compression for longitudinal waves

High pressure

Describe how the particles are situated in the three states of matter. And how they can affect a mechanical wave. May want to write it down

In gases, the particles are farthest apart and mechanical waves move the slowest. In solids, the particles are closest together and mechanical waves move the fastest

Are longitudinal waves the only waves

In this type of wave,

What has wave length

Light

Transverse waves examples

Light is an example of a transverse wave.

Longitudnal are what

Longitudinal waves

Longitudnal vs Transverse has

Longitudinal waves consist of compressions and rarefactions, while transverse waves consist of crests and troughs.

Types of Mechanical Waves for motion

Longitudinal, and travservse and circular transverse

What can a medium be

Matter

Transverse and longitudinal waves. Kola super deep borehole, a covering over the deepest hole humans have ever dug. The soviets did this in the 1970s. They got around 40,000 ft Below surface of earth and it got incredibly hot so they couldn't keep drilling. But it's really deep. Now if we look at the earth, it is barely scratching crust. Now you may be thinking, how do we know what the inside of the earth looks like. Since we have only been able to dig a little bit into the crust. We can figure out the inside of the earth looks like thanks to waves and I'm talking about seismic waves. These are the waves produced through earthquakes, which some of those are transverse waves and some of those are longitudinal waves. Transverse waves are the waves where the oscillations are perpendicular to the motion of the wave and those ones, like all waves, cannot make it through the solid inner core, but also cannot make it through this liquid outer core. Longitudinal waves, their oscillations are in the direction of motion, can still move their way through. Looking at those waves on the other side of the earth to figure out what the inside of the earth looks like. Waves are the transfer of energy through disturbances or oscillations and they come in two forms: transverse and longitudnal. Longitudinal waves are when the oscillations are in the same direction or parallel to the propagation or the movement of the wave itself. For longitudnal, it has lighter spots and darker pots. Transverse waves, where the motion is left to right but the oscillation is going to be perpendicular to that. Transverse waves are the up and down motion Transverse and longitude waves cna be mechanical waves.

Mechanical waves are the seismic waves in the earth and they require a medium. The medium is something that is allows it to go through. They could be longitudinal or transverse. However, the electromagnetic waves like the light you are receiving right now, is a transverse wave. And only transverse. It doesn't require a medium for it to move through. It can move through a medium like how it's right I'm moving through the air. Transverse waves can be polarized, so we can use thin slits to only let certain transverse waves through. Energy can be moved from point a to point B in two ways. It can be a particle where you simply fire a particle from a to b, where you move b. And we can also use a medium, and at point a we can make oscillations which would generate waves to point B which would make it float away and move it. So we are transferring energy from one point to another but there's no particle that makes it there. So energy can be transferred in two ways, through particles or waves. The waves could be either mechanical or electrical magnetic waves. Electromagnetic waves move through no medium, they don't need a medium. They can move Through space where there is nothing. So if you were to see an explosion in space, you couldn't hear it because there is no medium for those mechanical sound waves to reach you. But you can only see it. The two types of waves are longitudinal, and these are the waves were the oscillation or the disturbance is in the direction that the wave is moving. So if the wave is moving left to right, you will also have the oscillations moving from left to right. These can be pressure waves or sound waves like these are the examples of longitudinal waves. Sound waves are the waves that I am hearing right now, I am vibrating The air, which is vibrating The microphone, which is vibrating my speaker, which is vibrating the air near me and I can hear that. But everything is in the same direction. For the simulation, this is meant to stimulate an example of an longitude no wave, the green particles as they move back-and-forth is transferring energy from left to right. The particles are moving in the direction the wave is moving in. For transverse waves, I always think of the T in transverse going to be perpendicular to the motion. The propagation or the movement of the wave is from left to right, but the oscillation is up and down. Example is a rope wave, were you attach a rope to a wall and simply oscillate it, or light can be an example of a transverse wave. So if we have a rope wave, which is moving left to right, but the oscillation is up and down. But the interesting thing is that the rope is not moving, it is the energy that is moving from one spot to another. So it's not like the air is moving, is that the energy that is moving through the air itself. Transverse waves can come in many different directions, and since it is perpendicular to the direction of the motion, we can have a grid or a slit or some kind of a filter, that will only let the transverse waves go in one direction through. This is how polarized sunglasses work. This is an image with the car mirror, where you have no polarizer on the bottom, and so we are getting light in all directions, but when we are using a polarizing lens on the top, we could see the photographer on the inside because because the light is only coming out through the car itself. Transverse and longitudinal waves Longsitdnal waves travel parallel to direction of motion (has higher pressures) Transverse: waves travel perpendicular to the direction of motion. Polarizing. Identify patterns that indicate that a particular mechanical wave is polarized. Mechanical waves are the waves we find in ocean, and sound as they are all mechanical waves.

Longitudnal wave has

Medium

What do longitudinal waves have

Medium

What do the median pieces do in the longitudinal wave

Move

What do longitudinal waves do

Oscillate parallel to the direction of energy transfer of the waves squash up and stretch out the arrangement of particles in the medium they pass through making compressions (high pressure, lots of particles) and rarefactions (low pressure, fewer particles

The waves of longitudinal waves travel in what direction

Parallel

longitudnal wave, what direction it travels

Parallel

Longitudal wave medium has

Particles

Longitudinal waves have (not energy)

Particles

Longitudnal wave has (not energy)

Particles

electromagnetic waves in increasing order of frequency

Radio waves. Microwaves. Infrared radiation. Visible light. 5 × 10 - 6 m t o 0 . 8 × 10 - 6 m.

electromagnetic waves in decreasing order of wavelength are:

Radio waves. Microwaves. Infrared radiation. Visible light. 5 × 10 - 6 m t o 0 . 8 × 10 - 6 m. Ultraviolet radiation. X-rays. Gamma rays.

Did not understand

Since the speed is greatest near the ground, sound waves bend upward, causing the audio to be just out of ears reach. During the night our atmosphere ends up producing a temperature inversion. This means temperatures increase with height. technology used including; Absorbers, Attenuators, Oscillation water columns, overtopping and Inverted- Pendulum device.

Mechanic wave exa

Sound

Mechanical wave example

Sound

Light waves are created how?

The components (electric and magnetic fields) of a light wave oscillate perpendicular to the direction of wave propagation

What determines wave distance?

The distance of the wave's propagation is limited by the medium of transmission. In this case, the oscillating material moves about a fixed point, and there is very little translational motion. One intriguing property of mechanical waves is the way they are measured, which is given by displacement divided by the wavelength. When this dimensionless factor is 1, it generates harmonic effects; for example, waves break on the beach when this factor exceeds 1, resulting in turbulence.

Explain light

The light you see, the colours around you are visible because of electromagnetic waves

What happens when the medium is deformed during energy transfer. And I mean after the energy is transferred

The particle is restored

Examples Of Transverse Waves

The ripples on the surface of the water. The secondary waves of an earthquake. The ocean waves

What determines the speed of mechanical waves

The speed at which a mechanical wave moves is related to how closely the particles of matter are packed together.

Types of wave motions and what arr they and what wave they for

There are three general types of mechanical waves: - Transverse - particle motion is perpendicular to wave motion. - Longitudinal - particle motion is in the same direction as wave motion. - Combined - sea waves.

How are mechanical waves formed like what is needed for them to occur

They are created when a force

What do longitudinal waves do to the medium

They move it

What happens when you change the magnetic field

This changing magnetic field then creates a changing electric field and BOOM - you have light.

Mechanical transverse waves: describe how medium works

Transverse: medium pieces move perpendicular to wave motion.

A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum. Slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist. A slinky wave requires the coils of the slinky; a water wave requires water; a stadium wave requires fans in a stadium; and a jump rope wave requires a jump rope. The major difference between a mechanical and a non-mechanical waves (also known as Electromagnetic waves) is that, the first one needs material medium to travel. The non-mechanical waves travel even in vacuum, Sunlight is an example of an electromagnetic wave which travels through a vacuum to reach the Earth's surface. Sound waves is a common example of a mechanical wave, which needs material mediums like solid, liquid or gas to travel from one end to the other end.

Types of waves different types of mechanical waves. Explain what electromagnetic waves are. As previously discussed there are three primary categories of waves: mechanical, electromagnetic, and matter. Some more details on mechanical and electromagnetic waves will be discussed on this page. As a reminder, the big difference between mechanical waves and electromagnetic waves is that mechanical waves are disturbances that travel in a medium while electromagnetic waves do not require medium (they can travel in a vacuum!). While mechanical waves cause a disturbance in a medium, they do not transport matter as they travel. They only transport energy. Within the category of mechanical waves there are 3 primary types: transverse,longitudinal, and surface Transverse: Imagine you have a long string. You tie one end to a tree and hold the other end so the string is under tension. You then move the end of the string you're holding up and down and you see this movement travel down the string towards the tree. In doing so, you're causing a displacement of the medium (the string) that is perpendicular/transverse to the direction of travel. In other words, you're causing a transverse wave! Longitudinal waves Longitudinal waves also called compression waves and pressure waves. In longitudinal waves the displacement of the medium is in the same direction as the wave travels. To visualize this, imagine liquid in a tube with a plunger or piston at one end of the tube and a rigid wall at the other end. When you push on the piston you're causing displacement and pressure fluctuations in the liquid (the medium) that travel down the tube. Another way to visualize this is Surface waves Surface wavesSurface Waves - See Rayleigh wave. travel along the interface between two different mediums. Some examples are ocean waves or seismic waves that often occur as a result of an earthquake. In surface waves the molecules of the medium undergo circular motion and are therefore neither transverse nor longitudinal. However, they can be described as having transverse and longitudinal components. Ground waves are an electromagnetic version of surface waves, but are beyond the scope of this material. Em waves In the electricity and magnetism modules we discussed electric fields and magnetic fields, respectively. We also briefly discussed how a changing magnetic field can produce an electric field and vice versa. It is these linked changing electric and magnetic fields that form electromagnetic (EM) waves. As previously mentioned, these waves do not require a medium to travel. This means that while they can travel through a medium like air or a wall, they can also travel through a vacuum like outer space. Electromagnetic waves are used a lot in communications systems, such as those used to talk to satellites in space. It should be noted that electromagnetic waves and electromagnetic radiation refer to the same phenomenon. One defining characteristic of an electromagnetic wave is its frequency, which is related to its wavelength and its energy. These concepts will be discussed more in a following page. The electromagnetic spectrum , which encompasses the full range of frequencies electromagnetic waves can have The three main types of mechanical waves are transverse, mechanical, and surface. Mechanical waves only transport energy as they travel. They do not transport matter. Electromagnetic waves are formed from linked changing electric and magnetic fields. https://www.nde-ed.org/Physics/Waves/characterradiation.xhtml

Light is known as

Visible light

Examples of mediums

Water or air and solid and liquid and gas

What are longitudnal waves and transverse waves

Wave motions

Longitudinal waves are

Waves

Longitudnal waves are

Waves

What are longitfnal waves

Waves

Questions

What causes a mechanical wave, em wave, matter wave? Longitudnal vs transverse examples and what are they? How fast do em waves travel? Mechanical waves? How many em waves are there? Are there em waves past gamma? The types of em waves Are ocean waves transverse

Transverse waves motion

When the movement of the particles is at right angles or perpendicular to the motion of the energy,

Real example of em waves

When you listen to the radio, watch TV, or cook dinner in a microwave oven, you are using electromagnetic waves.

Wavelengths of colors

Yellow light has a wavelength of about 570 nanometers. Energy whose wavelength is too long to see is "redder than red" or infrared.

Are there different types of waves

Yes

Do longitudnal waves need medium

Yes

Longitudinal waves are

a wave

What is the role of the force in the mechanical wave

acts on a medium

What does the source of energy do to the medium of mechanical waves

causes a medium to vibrate

What does the force due to the medium results

causing it to move.

What is the difference between the waves

difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling.

Medium of a mechanical waves are

elastic

Compression waves have

high pressure.

Longitudinal traveling describe

in which the motion of the vibratory disturbance is parallel to the direction of propagation (travel) of the wave through the medium.

What do the particles do in longitudinal waves

in which the particles move

What do the particles of the medium in longitudinal waves

in which the particles of the medium vibrate

Longitudinal movement of particles

is parallel to the motion of the energy, i.e. the displacement of the medium is in the same direction in which the wave is moving

Em waves examples

light waves

The best medium

liquids and solids are better than air - solids are the best

Sound waves are

longitudinal waves, compressional

What part of the longitudnal wave moves parallel

medium pieces

Longitudinal waves particles of the medium vibrate in what direction

parallel to the direction of wave motion

In what direction do the particles of the longitudinal waves move

parallel to the path of the wave

Transeverse waves examples

ripples on the surface of water. a Mexican wave in a sports stadium. seismic S-waves.

What causesmechanical waves

source of energy

Difference between transverse and longitudnal

the movement of the particles

A type of wave motion

then this type of wave is known as a transverse wave.

Longitudinal waves travel parallel to what

to wave motion or to extent of wave.

Wavenlgnth of light

wavelength range of 400 - 700 nanometers (nm).

Radio waves, television waves, and microwaves difference

wavelength.

Describe how the particles look like when longitudinal waves travel through the medium.

where the coils or particles are bunched together