Vocabulary Word | Definition |
Wave | A disturbance that moves through matter or space. They carry energy from one place to another |
Transverse Wave | Causes particles in matter to move in right angles to the direction the wave travels. (Mechanical Wave) |
Compressional Wave | Causes particles in matter to move back and forth along the same direction in which the wave travels. (Mechanical Wave) |
Wavelength | The distance between one point on a wave and the nearest point moving with the same speed and direction. |
Frequency | The number of wavelengths that pass by a given point each second.
FREQUENT |
Law of Reflection | States that the angle the incoming wave makes with the normal to the reflecting surface equals the angle the reflected wave make with the surface |
Refraction | The change in direction of a wave when it changes speed as it travels from one material to another. |
Diffraction | Bending of waves around an object |
Mechanical Wave | Needs matter
ie. earthquake, tsunami(water), sound |
Electromagnetic Wave | No matter needed
ie. light, heat |
Opaque | No light pass through them |
Translucent | Allowing some light through but it is not clear |
Transparent | Allowing all light to pass through |
Reflect | The process of light striking an object and bouncing back |
Absorb | take in |
Transmit | cause something to pass on from one place to another |
Pitch | the degree of highness or lowness of tone
Frequency |
Loudness | producing or capable of producing much noise, easily audible
Amplitude |
Echolocation | the location of objects by reflected sounds |
Echo | a sound or series of sounds caused by the reflection of sound waves from as surface back to the listener |
Doppler Effect | an increase or decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other. |