"6th Grade - Energy Vocabulary - 04"
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Intensity | The amount of electricity, light, heat, or sound energy per unit area per unit time
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| Decibel | A measurement used to compare the intensity of different sounds. Each increase of 10 decibels is a sound intensity 10 times greater
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| Dispersion | The spreading out of energy as it travels away from the source of the energy. The decrease in intensity as distance from an energy source increases
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| Ear canal | A tube like structure connecting the external ear to the eardrum
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| Eardrum | The membrane separating the outer ear from the inner ear
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| Membrane | A layer of tissue that serves as a covering, connection, or lining
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| Hammer | The first in a series of three small bones in the middle ear
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| Anvil | The second in a series of three small bones in the middle ear
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| Stirrup | The third in a series of three small bones in the middle ear
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| Oval window | An opening between the middle ear and the inner ear
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| Cochlea | A spiral tube that makes up the part of the inner ear responsible for hearing
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| Cilia | Tiny hairs that line the cochlea and help turn vibrations into nerve impulses
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| Auditory nerve | A nerve that connects the inner ear with the brain and transmits sound, in the form of nerve impulses, to the brain
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| Wave | A disturbance that travels through a medium from one place to another
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| Mechanical wave | A transfer of energy through a medium without a transfer of the medium
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| Medium | The material through which a mechanical wave travels
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| Longitudinal (compressional) wave | A wave that causes a medium to vibrate in a direction parallel to the direction in which the wave travels
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| Transverse wave | A wave that causes a medium to vibrate in a direction perpendicular to the direction in which the wave travels
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| Amplitude | The height of the crest in a transverse wave; a measure of how compressed the compressions are in a longitudinal wave
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| Crest | The highest point of a transverse wave
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| Trough | The lowest point of a transverse wave
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| Wavelength | The distance between two successive crests or troughs in a transverse wave or between two successive compressions in a longitudinal wave
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| Compression | Region of a longitudinal wave where the particles of the medium have the highest density
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| Period | The time required to complete one cycle of a wave
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| Frequency | The number of crests or compressions in a wave that pass a point per unit time: for sound waves, measured in hertz (hz)
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| Speed of a wave | The distance a wave travels (crest, trough, crest) in a given period of time. Speed of a wave can be calculated by multiplying wavelength by frequency
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| Reflection | When the medium and energy in a wave is turned back from a hard surface
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| Reflect | To turn back from a hard surface
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| Seismic | Caused by an earthquake or vibrations inside Earth
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| Seismograph | An instrument used to detect and record seismic waves
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| Pitch | How high or low a sound is
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Created by:
Hushekclan
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