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