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3.3
Question | Answer |
---|---|
all waves begin with a source _______. | energy |
a _______ is a disturbance that transfers energy | wave |
when a flag waves in the wind, the flag ripples back and forth as the energy ______ along the flag | travels |
an____________ wave travels only through matter | mechanical |
an _____________ wave can travel through empty space or through matter | electromagnetic |
there are __________ types of wave motion | three |
A ___________ wave is a wave in which the disturbance is perpendicular to the direction the wave travels | transverse |
A ____________ wave is a wave that makes the particles of a medium move back and forth parallel to the direction the wave | longitudinal |
Two common waves in nature are water waves and _______ waves | seismic |
In water waves , water particles move in _________ | circles |
these waves are a combination of ___________ and _________ | transverse and longitudinal |
_________ waves occur during an earth quake | seismic |
The _____________ of a wave is the distance from one point | wavelength |
the ________________ of a wave is the number of wavelengths that pass a point each second | frequency |
frequency is measured in _________. | hertz |
the ____________ the wavelength the lower the frequency | longer |
wave speed depends on the type of material , or ____________ | medium |
the maximum distance a wave varies from its rest position is the __________ | amplitude |
the more energy a___________ wave has , the larger the wave's _______ will be | transverse and wavelength |
the particles that make up the door___________ some of the sound energy | absorb |
Some of the energy of your knock bounces, or ___________, back into the room that is why you __________ the sound | reflects and hear |
__________ is the change in direction of a wave as it changes speed moving from one medium into another | refraction |
waves that bounce off a surface follow the law of __________ | reflection |
the angle between the ___________ wave and the ___________is equal to the angle between the _________ wave | incident, normal, and reflected |
the change in direction of a ________ when it travels past the edge of an object or through an opening is called________ | wave and diffraction |