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S8P4a, 4d, 4f
Physical Science
Term | Definition |
---|---|
wave | Rhythmic disturbances that carry energy without carrying matter |
medium | is the substance through which a wave can travel. Ex. Air; water; particles; strings; solids; liquids; gases |
amplitude | is the peak (greatest) value (either positive or negative) of a wave. The distance from the undisturbed level to the trough or crest |
wavelength | is the horizontal distance, either between the crests or troughs of two consecutive waves |
mechanical wave | need matter (or medium) to transfer energy |
crest | crest is the highest point on a wave. |
trough | is the valley between two waves, is the lowest point. |
transverse | Energy causes the matter in the medium to move up and down or back and forth at right angles to the direction the wave travels. Examples: waves in water |
rarefraction | is the part of the compressional wave where the particles are spread apart |
compression | is the part of the compressional wave where the particles are crowded together |
compressional wave | A mechanical wave in which matter in the medium moves forward and backward along the same direction that the wave travels. Ex. Sound waves |
wave energy | is a renewable energy whereby we capture the energy that is being generated naturally by waves |
matter | medium |
electromagnetic wave | DO NOT NEED matter (or medium) to transfer energy They do not need a medium, but they can go through matter (medium), such as air, water, and glass |