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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 |