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Waves Unit Science
| Question | Answer |
|---|---|
| What is a wave caused by? | A disturbance |
| What is a SOUND wave caused by? | A vibration |
| What does sound travel fastest in? | Solid |
| What are the different mediums? | Solid, liquid, gas |
| What is used to measure sound waves? | Oscilloscope |
| Does energy stop moving on a wave when undisturbed? | No |
| What is the electromagnetic spectrum. | Radio, microwave, infrared, visible, ultraviolet, x-ray, gamma ray |
| What are seismic waves and how are they categorized? | Seismic waves are earthquakes where the ground shakes because tectonic plates push together. They are categorized as P and S waves. |
| If the pitch is low, what is the wavelength? | High |
| If the pitch is high, what is the wavelength? | Low |
| If the sound is loud, what is the amplitude. | High |
| If the sound is quiet, what is the amplitude. | Low |
| Define wavelength | Length from trough to trough or crest to crest |
| Define amplitude | Height of wave |
| Define crest | Highest point on wave |
| Define trough | Lowest point on wave |
| Define rarefaction | Un-squished part of longitudinal wave |
| Define compression | Squished part of longitudinal wave |
| Define mechanical | Needs a medium |
| Define electromagnetic | Does not need a medium |
| What are the two main types of waves? | Mechanical and electromagnetic |
| What category do transverse waves fall under? | Mechanical |
| What category do longitudinal waves fall under? | Mechanical |
| What category do sound waves fall under? | Mechanical |
| What category do earthquakes fall under? | Mechanical |
| What category do light waves fall under? | Electromagnetic |
| What category do microwaves fall under? | Electromagnetic |
| What category do x-ray waves fall under? | Electromagnetic |
| What category do radio waves fall under? | Electromagnetic |
| What are P waves? | Longitudinal waves that are called "push and pull waves"...sometimes called primary waves. |
| What are S waves? | Transverse waves that are called "side to side waves"...sometimes called secondary waves. |
| White objects... | REFLECT all light |
| Black objects... | ABSORB all light |
| What are the primary light colors? | Red, blue, green |
| What are the secondary light colors? | Yellow, cyan, magenta |
| What do concave lenses do? | Zoom out |
| What do convex lenses do? | Zoom in |
| Why might a straw in water appear to be bent? | Light bends when changing from one medium to another depending on how fast it can move through each medium, so the light would be refracted. |
| Why are rainbows created? | Light passes through a raindrop and water acts as a prism, so light is diffracted. |
| What is fluorescence? | When an object ONLY glows under black light. |
| What is phosphorescence? | When an object CONTINUES glowing after it is removed from the black light. |
| What is the equation for finding velocity? | Frequency x wavelength |
| What is the equation for wavelength? | Velocity/Frequency |
| What is the equation for finding frequency? | Velocity/wavelength |
| red+green | yellow |
| red+blue | magenta |
| green+blue | cyan |
| green+blue+red | white |
| What tool turns light into rainbows? | Prism |
| Why isn't sound in space? | Air molecules are too spread out |
| If the pitch is high, what is the frequency? | High |
Created by:
abby12345678910101010101010
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