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Key Questions and Terms Notes

The way that light waves interact with different mediums is called the ________.
When does reflection occur?
Light reflects off of the medium at a ________ angle to which it initially struck the material. This means that if light hits a mirror at a 40-degree angle, it will bounce off at a ___ degree angle. Draw a picture of what this looks like.
When does refraction occur?
When light can pass through an object, it is called ________.
When does absorption occur?
Describe how visible light interacts with these materials:
Mirror:
Glass of water:
Dark fabric:

What are some examples of matter waves?
What are some examples of electromagnetic waves?
How are electromagnetic waves different from matter waves?
Would outer space be an ideal spot for a concert? Why or why not?
________ waves need to interact with particles of either a solid, liquid, or gas to travel.
Light Waves and Sound Waves
Record your findings about sound and light waves for each of the following.
Traveling through air
Traveling through metal
Why light travels faster

2 Answers

8 votes

Final answer:

The interaction of light with media includes reflection, refraction, and absorption; reflection occurs at the same angle, while refraction involves a bending of light as it changes medium. Transmittance happens in transparent objects, and all electromagnetic waves, unlike matter waves, can travel through a vacuum, which is why outer space isn't ideal for sound to propagate.

Step-by-step explanation:

Interactions of Light

The way that light waves interact with different mediums is called the interaction of light. This includes processes such as reflection, refraction, and absorption. Reflection occurs when light waves bounce off a medium at the same angle to which it initially struck the material, known as the angle of incidence. For example, if light hits a mirror at a 40-degree angle, it reflects off at a 40-degree angle. During refraction, light waves change speed and direction as they move from one medium to another, causing them to bend. This happens due to differences in the optical densities of the materials. When light passes through an object, this is called transmittance, and occurs in materials that are transparent. Absorption occurs when material captures the energy of a light wave.

Reflection of light creates images as with a mirror, while refraction can also form images, as seen with lenses. Light interaction with different materials is such that a mirror reflects almost all light, glass of water allows light to pass through but bends the light rays (refraction), and dark fabric absorbs most of the light, reflecting little.

Matter waves are examples of quantum phenomena such as electron waves within atoms. Electromagnetic waves include gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, and radio waves. The key difference is that electromagnetic waves can travel through a vacuum, whereas matter waves are associated with particles and have properties of both waves and particles.

For sound waves to travel, there must be a medium like solid, liquid, or gas. Thus, outer space would not be an ideal spot for a concert because sound waves need a medium to travel, and space is a vacuum with very few particles.

As for light and sound waves, light travels faster in air than in metal because light waves have different speeds in different media. They travel fast in less dense media, such as air, and slow down in more dense media, like metal.

User Rens Jaspers
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Answer:

Following are the solution to the given question:

Step-by-step explanation:

  • Its interactions among light waves as well as different media were also called light products.
  • Even before sound rays hit a medium, the light rays bounce off.
  • Even at a similar angle with which the material initially struck its medium, sunlight reflecting.
  • When the light hits a mirror at such an angle of forty degrees, everything just rebonds at an angle of 40 degrees.
  • When light waves pass via a transparent medium, those who bend as well as change their direction.
  • Light is called transparent if it can pass via an object.
  • Whenever light waves strike a platform, this is neither re-elected nor refracted, nor expected to move.
  • The light of interacts with these materials are:

Reflection Mirror:

Water glass: refractive

Dark fabricate: Absorption

  • Sound waves and waves of water are examples of matter waves.
  • Light waves and X-rays are electromagnetic waves.
  • There is no need for sound radiation to pass through a medium/requirement to communicate with other particles to travel like waves of matter.
  • No, even though sound waves didn't reach through the space vacuum.
  • Matter waves should interact with solid, liquid, or gas particulates to travel.

The light waves pass thru the air more quickly than sound waves.

Sound waves almost always go through a metal frame.

Light waves travel faster than electrical signals even though they don't have to crash in electromagnetic waves to particles.

User Paul Clapham
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