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100
Define Wave
A disturbance that moves through a medium or vacuum
100
Define Wavelength
Distance between any two corresponding points on a wave
100
Define Diffraction
When a wave encounters an object in its path and bends around it
100
Define Digital Signal
Signals represented by a series of numbers
100
Draw a longitudinal wave and label a compression, refraction and wavelength.
tbd
100
Draw a Longitudinal wave and label a compression, refraction and wavelength
100
A wave with a frequency of 5 Hz is observed. Determine the period of this wave
.2 s
200
Define Medium
The material through which a wave moves
200
Define ElectroMagnetic waves
Waves that carry energy through a vacuum
200
Define Refraction
Energy waves changing direction and speed as they move from one object to another
200
Define Analog Symbol
Signals represented by a continuous wave
200
How is amplitude measured in a transverse and a longitudinal wave?
Transverse is the height of the crest or the depth of the trough measured from the rest position. Longitudinal is the maximum displacement of particles of the medium from their equilibrium position, measured along the direction of wave travel.
200
A wave has a frequency of 3.2 Hz with a wavelength of 10m. What is the velocity of the wave?
32 m/s
200
If the period of a wave is measured to be .2 seconds, what is its frequency?
5 Hz
300
Define Period
The time in seconds required for one complete wave cycle.
300
Define Mechanical Waves
Waves that transfer energy through a medium
300
Define Reflection
Energy waves bouncing off of an object
300
Describe the difference between electromagnetic waves and mechanical waves and give examples of each.
Mechanical waves cannot travel through a vacuum, but electromagentic waves can. Electromagnetic waves: Radio, Microwave, Infrared, Ultraviolet. Mechanical Waves: Soundwaves, seismic waves, surface waves
300
Define Mechanical waves. Do they need a medium to travel through.
Mechanical waves require a material medium, such as air, water or solids to transfer energy. Yes they do.
300
Explain the relationship between loudness, intensity, amplitude and pitch in relation to sound waves.
Loudness is the subjective human perception of the intensity of a wave it is measured in pitch and is a direct result of the amplitude of a wave.
300
A wave travels at a speed of 300 m/s and has a frequency of 75 Hz. What is the wavelength of this wave?
4 m
400
Define Frequency
Number of wave cycles that pass a given point in time
400
Define Electromagnetic Spectrum
entire range of all types of electromagnetic radiation. 1. Radio Waves 2. Microwaves 3. Infrared Radiation 4. Visible Light 5. Ultraviolet Radiation 6. X-Rays 7. Gamma Rays
400
Define Absorption
Waves are absorbed by a material and converted to other forms like heat
400
Explain the difference between transverse and longitudinal waves.
Longitudinal waves are particle compression and expansion, a transverse wave particles vibrate perpindiuclar.
400
Are Light waves Mechanical or electromagnetic?
Electromagnetic
400
A wave travels 1.5 m/s with a frequency of 0.45 Hz. What is the wavelength of the wave?
3.3 m
400
A wave has a wavelength of 2 m and a frequency of 250 Hz. Calculate the velocity of this wave.
500 m/s
500
Define Amplitude
Height of wave from origin to crest
500
Define Hertz
Unit that frequency is measured in
500
Define Interference
Occurs when two or more waves meet and combine as they travel through the same medium
500
Draw a transverse wave and label a crest, trough, wavelength and amplitude
500
Are Sound waves mechanical or electromagnetic?
Mechanical
500
The period of a sound wave is 0.002 seconds. The speed of sound is 344 m/s. Find the frequency and wavelength of the soundwave.
F = 500 Hz, Wavelength = .688 m