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3.3
Question | Answer |
---|---|
All wave begin with a source of______. | energy |
A __________ is a disturbance that transfers energy from one place to another. | wave |
When a flag waves in the wind , the flag ripples back and forth at the energy _________ along the flag | travels |
Fabric does not _________ forward with the wave energy. | move |
A ____________ wave travels only through matter | mechanical |
A ____________wave can travel through empty space or through matter. | electromagnetic |
There are _____________types of wave motion. | perpindicular |
A ___________ wave is a wave in which the disturbance is perpindicular. | transverse |
A ____________ wave is a wave that makes the particles of a medium move back and forth. | longitudal |
Two common waves in nature are water waves and________ waves. | siesmic |
in water waves water particles move in_________ . | circles |
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__________(Hz) | hertz |
wave speed depends on the type of material or _______ a wave travels through | medium |
the ________ the wavelength the lower the frequency | longer |
the maximum distance a wave varies from its rest position is the ____________ of the wave | amplitude |
The more energy a __________ wave has the larger the waves speed will be | electromagnetic |
when you knock on one side of a door the sound travels as _______________ sound waves through the door | longitudal |
these waves travel through the __________ that makes up the door | matter |
the particles that make up the door _________ some of the sound energy | absorb |
the particles increase there motion changing to________ energy | sound |
this causes __________ in the sound | reflection |
some of the energy of your knock bounces or ________ back | reflects |
waves that bounce off a surface follow the law of ___________. | reflection |
the angle between the _______incoming wave and the reflected wave | incident |