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Waves / Sound / EM
Waves Sound and Electromagnetic Assessment
| Question | Answer |
|---|---|
| Sound travels as what type of wave? | Longitudinal |
| The speed of sound depends on | Density Temp Elasticity |
| The pitch of sound depends on | Frequency |
| Sounds of frequencies belos calledw 20 Hz are called | Infrasound |
| Sounds of frequencies above 20,000 Hz are called | Ultrasound |
| For stringed instruments you can change the pitch by changing what? | Length, thickness, and tightness of the strings. |
| The intensity of sound is measuring its | Energy |
| Change in frequency of a sound wave due to the motion of an object is called | Doppler |
| What happens to the sirens sound as it is racing towards you? | Frequency will Increase |
| The science of sound is called | Acoustics |
| A wave travels through a medium because | Wave energy travels particle to particle |
| Musical instruments have a certain sound quality or | Timbre |
| What system is used to detect objects under water? | SONAR |
| Sound waves through water in which intense cleaning takes place uses what process? | Ultrasonic |
| What process is used in medicine where they send sound waves through the body to get an image? | Ultrasound |
| A disturbance that transfers energy from place to place is called a | Wave |
| The bending of waves due to a change in speed is called | Refraction |
| The bending of a waves around the edge of a barrier is know as | Diffraction |
| The interaction between two waves that meet is called | Interference |
| Waves combine to make a wave with larger amplitude in a process called | Constructive Interference |
| When an incoming wave combines with a reflected wave in such a way that the combined wave appears to | Staning Wave |
| What occurs when vibrations traveling through an object matches the object’s natural frequency? | Resonant Frequency |
| Frequency is measured in units called | Hz / Hertz |
| When a wave hits a surface through which it CANNOT pass and bounces back, it undergoes | Reflection |
| Waves combine to produce a smaller or zero-amplitude wave in a process called | Destructive Interference |
| Why do you see lightning from a distant storm before you hear thunder? | Light travels faster than sound |
| Light waves are what type of wave | Transverse |
| Electromagnetic waves differ from other wave because | Can travel in a vacuum / Don't need a medium |
| Electromagnetic waves with the lowest frequency and the longest wavelength are | Radio |
| The radio waves with the highest frequencies are | Microwaves |
| Characteristics of Infrared Rays | They can travel in a vacuum / Don't need a medium / Frequency Lower then Red |
| Electromagnetic waves with the highest frequencies are | Gamma |
| The electromagnetic spectrum does not include | Sound Waves |
| The waves responsible for tanning and for vitamin D production are | Ultraviolet |
Created by:
huizenga
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