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Science Review
Waves
| Question | Answer |
|---|---|
| 1. A disturbance that transfers energy from place to place is called | wave |
| 2. Mechanical waves are created when a source of energy causes a medium to | move |
| 3. The speed of a wave is its wavelength multiplied by its | frequency |
| 4. The bending of waves due to a change in speed is called | Refraction |
| 5. The bending of waves around the edge if a barrier is known as | Diffraction |
| 6. The interaction between two waves that meet is called | Interference |
| 7. Waves combine to make a wave with larger amplitude in a process called | Constructive |
| 8. When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still, the result is a | Standing Wave |
| 9. What occurs when vibrations traveling through an object match the object's natural frequency? | Residence |
| 10. A wave travels through a medium because | The energy passes from particle to particle. |
| 11. Mechanical waves are classified according to | How they move or movement |
| 12. Frequency is measured in units called | Hertz |
| 13. When a wave hits a surface through which it CANNOT pass and bounces back, it undergoes | Reflection |
| 14. Waves combine to produce a smaller or zero-amplitude wave in a process called | Destructive Interference |
| 14. Why do you see lightning from a distant storm before you hear thunder? | Light travels faster than sound. |
| 15. Compresstions and rarefactions are characteristics of what type of wave? | Longitudinal Wave |
| 16. The distance between two consecutive crests of a wave is called the | wavelength |
| a. | Rarefraction |
| b. | Compresstion |
| c. | Wavelength |
| f. | crest |
| g. | amplitude |
| j. | wavelength |
| h. | trough |
| 1. | Reflection |
| 2. | Dafraction |
| 3. | Destructive Interference |
| 4. | Constructive Interference |
| 5. | Refraction |
| 1. What is the Frequency of the wave above in Hertz? | w/s 3/3=1hz |
| 2. A wave with a frequency of 10 Hz has a wavelength of 5 meters. At what speed will this wave travel? | s=fy 10 Hz5meters=50 meters |
| 3. The speed of a wave is 40 m/sec. If the wavelength of the wave is 5 meters, what is the frequency of the wave? | f=s/y 40m/sec/s meters=8y |
| 4. A wave has a frequency of 20 Hz and velocity of 10 m/s. What is the wavelength of this wave? | y=s/f 10 m/s/ 20 Hz=0.5 meters |
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