Light, Sound and Waves
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| White light | all colors of the rainbow
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| Primary colors of light | red, green, and blue
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| Light | a type of wave that carries energy, no medium necessary
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| Reflected | waves bounce off of surfaces
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| Refracted | waves bend as they travel through different mediums
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| Diffraction | waves bend around a barrier
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| Opaque | material that allows no light to pass through (wall)
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| Translucent | material that allows some or little light to pass through (stained glass window)
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| Transparent | material that allows almost all light to pass through (regular glass window)
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| ROYGBIV | color order of the visible light spectrum
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| Wave | repeating disturbances or movements that carry or transfer energy through matter or space
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| Matter | anything that has mass and takes up space
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| Mechanical waves | waves that need matter to be able to transfer energy
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| Medium | the matter that energy travels on
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| Transverse/longitudinal wave | matter moves at right angles to the direction of the wave
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| Compression wave | matter moves forward and backward
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| Sound wave | compression waves, travel faster in solids, cannot travel in space due to the fact they need a medium
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| Wavelength | the distance between one point on a wave and the identical point on the next wave
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| Amplitude | the distance measured from the line of origin/rest position straight up to the crest or down to the trough. Related to the energy a wave can carry. Larger amplitude the greater the energy
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| Frequency | the number of waves that pass a fixed point in one second. Measured in hertz (Hz)
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| Crest | the highest point on a wave
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| Trough | the lowest point on a wave
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| Compression | the densely packed area of a compression wave
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| Rarefaction | the less dense area of a compression wave
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| Constructive interference | two waves with the same frequency overlap and form a single larger wave.
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| Destructive interference | when waves of different frequencies overlap and cancel out each other.
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| Intensity | the amount of energy that flows through a certain area in a specific amount of time.
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| Loudness | the perception of intensity. The higher the intensity the louder the sound
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| Decibels | the measure of intensity of a sound, abbreviated by dB
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| Pitch | the highness or lowness of a sound, pitch depends on the frequency of the sound wave
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| Ultrasonic waves | sound waves with frequencies above 20,000 Hz
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| Infrasonic waves | sound waves with frequencies below 20 Hz (subsonic)
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| Doppler effect | the change in frequency that occurs when the source of the sound is moving in relative to the listener
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
amastria
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