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21 Cards in this Set
- Front
- Back
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What is a Wave? |
A disturbance that carries energy from one place to another.
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What is a Vibration?
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A repeated back and forth or up and down motion. The source of the wave.
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What is a Mechanical Wave?
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Waves that require a medium to travel.
(Longitudinal & Transverse) |
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What is a Longitudinal Wave?
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When movement occurs in parallel to the direction of the travel of the wave. |
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What is a Transverse Wave?
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When the movement is perpendicular to the direction of travel of the wave. |
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What is the Crest/Peak?
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The highest part of a wave.
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What is the Trough?
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The lowest part of a wave
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What is Wavelength?
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The distance between two corresponding parts of a wave. (Crest to Crest) (Trough to Trough) |
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What is Frequency?
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The frequency of a wave is the number of complete waves that pass a given point in a certain amount of time.
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What is Amplitude?
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The maximum distance the particles of the medium carrying the wave move away from. rest/undisturbed. positions. Not Crest to Trough. |
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What is the equation for Wave Speed? |
- v is the wave speed in metres per second, m/s
- f is the frequency in hertz, Hz - λ (lambda) is the wavelength in metres, m. |
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What do Transverse waves look like? |
A line moving up and down |
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What do Longitudinal waves look like? |
A line moving from one side to another |
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What is an Electromagnetic Wave? |
A wave that is capable of transmitting energy through a vacuum. |
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An example of an Electromagnetic Wave? |
Light, Infrared, Gamma Rays, Radio. |
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An example of a Transverse Wave? |
A ripple in a pond, Light |
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An example of a Longitudinal wave? |
Pressure, Sound |
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Name the Blank Sections |
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How fast do electromagnetic waves travel through a vacuum? |
300,000,000 m/s |
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What is a vacuum? |
A place completely devoid of matter. |
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What is a medium? |
Any material substance that can spread energy waves. |
