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Science chapter 9
| Question | Answer |
|---|---|
| A repeating disturbance that transfers energy as it travels through matter or space | Waves |
| A wave that can only travel through matter. Ex.. Sound waves. It requires medium. | Mechanical Waves |
| Waves created by vibrating electric charges. Does not require medium. Ex.. Light waves | Electromagnetic wave |
| A wave in which particles of the medium move in a direction perpendicular | Transverse waves |
| Denser region of a longitude wave. Ex.. Sound waves | Compression waves |
| What Is the transfer of energy | Waves |
| Light ð¡ is a... | Transverse wave |
| The less dense region of a longitude wave | Rarefraction |
| When a wave strikes an object and bounces off of it | Reflection |
| The bending of a wave caused by a change in its speed as it moves from one medium to another. | Refraction |
| When two or more waves over lap combine to form new wave | Interference |
| When a object causes a wave to change direction and bend around it | Diffraction |
| What are three things that travel in waves | Energy â¡, light ð¡ and sound ð |
| 3 properties of waves | Distance Frequency Amplitude |
| X rays have high or low frequency | High |
| Is the distance between one point on a wave and the nearest point | Wave length |
| What causes waves on the ocean | Wind blows |
| What are earth quake waves | Seismic waves |
| The number of wave ð lengths that pass a fixed point each sec | Frequency |
| Height of waves | Amplitude |
| What wave travels by squeezing and spreading | Sound waves |
| What is it called when a wave bounces back and forth and comes back | Reflection |
| Uses sound waves | Sonar |
| Is matter through which a wave travels | Medium |
| Is a wave in which particles of the medium move in a direction parallel to the direction that waves move | Longitude waves |
| A sound ð wave is produced by a..... | Vibrating object |
| Behavior of a wave of reaching end of medium | Boundary behavior |
| What radiation have the most energy â¡ | Gamma rays |
| The amount of time it takes one wave length to pass a point | Period |
| Frequency of a wave....... The wavelength of the wave....... | Increases..... Decreases |
| Waves are created by.. | Vibration and carried energy â¡ |
Created by:
MaddyMatise
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