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31 Cards in this Set
- Front
- Back
This type of light is produced by a laser; it has one wavelength and the crests and troughs are in sync
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Coherent light; light produced by LASER
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What type of wave is this?
(Hint) wave and medium move in the same direction. |
A compression wave: wave and medium move in the same direction.
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What are waves?
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Waves are created by a vibration; a disturbance that transfers energy throught matter and empty space
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What type of lens is this? What does it do?
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Concave lens: diverges light ray to form smaller, upright virtual images. Thinnger in the middle and thicker on the edge
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What type of mirror? What does it do?
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Concave mirror
Reflects light from a surface that curves outwards adn forms smaller upright, virtual images. |
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What type of mirror is this? What does it do?
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convex mirror Reflects light from a surface that curves outwards adn forms smaller upright, virtual images.
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What does this diagram represent? Explain what is happening.
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Doppler Effect The change in frequency or A change in pitch that occurs when the source of a sound wave is moving relative to the observer
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This is the Electromagnetic spectrum. What does it show about energy, frequency, and wavelength?
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Shows basic forms of EM waves, organized by increaing frequency and energy as well as SHORTENING wavelength
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What is this type of wave? Describe the energy,and wavelength of this wave
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Infrared heat
lower energy and frequency that people can see.. wavelength is middle length |
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What is this symbol and what does it mean?
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Lambda and means wavelength
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Symbol chosen to represent the many ways we use this type of EM wave. Tell how related to radio waves
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Wireless symbol to represent all wireless and cell phone use of MICROWAVES
micorwaves are the shortest λ, highest energy and freq of all radio waves |
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Icon for radio wave. Tell about λ, freq and energy
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Longest λ, lowest energy and frequency of all EM waves.
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Only EM waves Humans can see. What does this diagram show about freq, energy and λ?
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Visible light. As move from red to violet, energy and freq increase, while λ shortens.
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Identify these EM waves, tell about freq, energy and λ.
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Ultraviolet rays. higher freq and energy that is above what humans can see. λ is shorted and can penetrate skin.
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What type of lens. What does it do?
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Convex lens: Converges light rays; thicker in the middle than the edges can form real and virtual images
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What is frequency?
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Frequency- the number of waves past a point in1 second. unit: hertz (hz)
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How is frequency and wavelength related?
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Frequency and wavelength are negatively related. If wavelength goes up, frequency goes down.
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How is frequency and wavelength related?
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Frequency and wavelength are negatively related. If wavelength goes up, frequency goes down.
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What is the wave in this picture doing?
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Reflection
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What is this image showing?
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Refraction
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Why does this happen?
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Refraction happens when a wave moves from one medium into another and bends due to a change in speed.
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What is the tallest point of a transverse wave?
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The crest.
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What is the lowest point of a transverse wave?
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Trough
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What part of this wave shows the greatest energy?
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Compression
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What part of this wave shows the lowest energy?
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The rarefaction
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How is amplitude measure on a transverse wave?
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The depth of the trough or the height of the crest.
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What does the picture represent?
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Constructive interference
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What does this picture represent?
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Destructive interference
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Which wave represents a loud sound? How can you tell?
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Wave B, amplitude is greater
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Tell how these waves are different. Identify one as coherent.
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The top wave shows coherent waves like used in a LASER. Waves are in sync
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What does this lens do?
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Convex lens. Converges light rays; thicker in the middle than the edges can form real and virtual images
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