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Waves, Sound & Light Flashcards

Waves, Sound & Light Flashcards
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X-rays
Electromagnetic radiation of this type can travel through many substances, but it has difficulty passing through some things, like bones. It's often used medically.
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Infrared Radiation
This type of electromagnetic radiation is very close to red on the visible spectrum. It creates thermal images that can be captured with special kinds of photography.
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Microwaves
A kind of electromagnetic radiation often used in the preparation of food. This heats matter by rotating the molecules contained within the object.
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Reflected Ray
This kind of ray moves away from a reflected surface after an incident ray strikes the surface.
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Angle of Reflection in the Law of Reflection
An angle caused by reflected rays. It shows the reflected ray's position as it relates to the normal.
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Incident Ray
We use this term when referring to any ray of light that is headed towards a reflective surface.
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Law of Reflection
A law that deals with the angles that are associated with reflected and incident rays.
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Angle of Incidence in the Law of Reflection
This refers to the angle that exists between the normal and the incident ray after the incident ray comes into contact with the reflective surface.
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The Normal in the Law of Reflection
We use this term when referring to an imaginary line existing in a position perpendicular to a surface that's reflective.
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Diffuse Reflection
This type of reflection is caused by rough, imperfect surfaces. Light reflected in this way moves away from the surface in many directions.
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21 cards in set

Flashcard Content Overview

Using these flashcards can be an easy way to review the law of reflection and diffuse reflections of light. You can consider the types of energy found on the electromagnetic spectrum, along with white light. This set of flashcards also covers vibrations and waves. You can go over the formulas used to determine the speed of waves based on temperature, or the frequency and wavelength of the wave.

Front
Back
Diffuse Reflection
This type of reflection is caused by rough, imperfect surfaces. Light reflected in this way moves away from the surface in many directions.
The Normal in the Law of Reflection
We use this term when referring to an imaginary line existing in a position perpendicular to a surface that's reflective.
Angle of Incidence in the Law of Reflection
This refers to the angle that exists between the normal and the incident ray after the incident ray comes into contact with the reflective surface.
Law of Reflection
A law that deals with the angles that are associated with reflected and incident rays.
Incident Ray
We use this term when referring to any ray of light that is headed towards a reflective surface.
Angle of Reflection in the Law of Reflection
An angle caused by reflected rays. It shows the reflected ray's position as it relates to the normal.
Reflected Ray
This kind of ray moves away from a reflected surface after an incident ray strikes the surface.
Microwaves
A kind of electromagnetic radiation often used in the preparation of food. This heats matter by rotating the molecules contained within the object.
Infrared Radiation
This type of electromagnetic radiation is very close to red on the visible spectrum. It creates thermal images that can be captured with special kinds of photography.
X-rays
Electromagnetic radiation of this type can travel through many substances, but it has difficulty passing through some things, like bones. It's often used medically.
Electromagnetic spectrum from longest wavelength to shortest

Radio and microwaves

Infrared

Visible light

Ultraviolent

X-rays and gamma rays

Gamma Rays
This kind of electromagnetic radiation can have minuscule wavelengths. It can generally pass through anything and can be used in sterilization, cancer treatments and more.
Visible Light
Humans are able to see the waves of light contained in this area of the electromagnetic spectrum.
Ultraviolet Light
We also call this kind of electromagnetic radiation UV radiation. It can cause damage to our skin.
Radio Waves
These have the longest wavelength on the electromagnetic spectrum. They're used to transmit data to radios or televisions.
White Light
This kind of light is created when light from all frequencies in the visible spectrum mixes together.
Waves
These disturbances are caused by vibrations and are capable of transporting energy, though they can't move matter.
Vibrations
We use this term to refer to motions that oscillate and occur around a position that is fixed.
Medium
This is the term used to describe a substance capable of carrying waves, like sound. Solids, liquids and gases can serve as this.
Formula to find the speed of sound using temperature
Speed of sound = 331 + (0.61)Temperature. Celsius is used for the temperature and the speed should be recorded using meters.
Formula to find the speed of a wave using its frequency and wavelength
Speed of a wave = Wavelength x wave frequency. This is usually recorded in meters traveled per second.

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