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science ch9
science
| Question | Answer |
|---|---|
| Refraction | the bending of a wave caused by a change in its speed as it moves from one medium to another |
| Reflection | when a wave strikes an object and bounces off |
| Standing wave | a special type of wave pattern that forms when waves of equal wave length and amplitude traveling in opposite directions continuously interfere with each other |
| Amplitude | A measure of the energy in a wave |
| Law of reflection | The angle of incidence in equal to the angle of reflection |
| Frequency | Measure of how many wavelengths pass a fixed point each second |
| Wavelength | Distance between one point and a wave and the nearest point just like it |
| compressional wave | Wave in which matter in the medium moves back and forth in the same direction the wave travels |
| Resonance | Ability of an object to vibrate by absorbing energy at its natural frequency |
| Rare Faction | Less dense region of a compression wave |
| diffraction | The bending of waves around a barrier |
| medium | material through which a wave transfers energy |
| Trough | Lowest point of a transverse wave |
| Interference | Ability of two or more waves to combine and form a new wave |
| Transverse wave | Wave that makes matter in the medium move back and forth at right angles |
| compression | Region where the medium is crowded and dense in a compression wave |
| crest | Highest point of the transverse wave |
| Waves | Repeating disturbances that transfer energy through matter or space |
| What is wavelength measured in | meter |
| What is frequency measured in | Hertz |
| What is wave speed measured in | Meters per second |
| If an obstacle is much larger than the wavelength of a wave, almost no _____occurs | diffraction |
| When you Shake a rope up and down you create a_____ wave | Transverse |
| When part of Earth's crust brakes___ Waves pass through Earth | Seismic waves |
| In a given medium as the frequency of a wave increases its speed_____ | Increases |
| In a standing wave, the point at which the medium does not move is called the_______ | Node |
| How do particles move differently in the transverse wave and in surface water waves(Transverse waves) | Up and down perpendicular to its direction |
| How do particles move differently in the transverse wave and in surface water waves(Surface wave) | Is circular up and down |
| Why don't all loud sounds cause glass objects to break | Sounds have to be the same frequency as the natural frequency of the glass |
| A light wave passes at an angle through a chunk of glass into the air what happens to it | The light wave speeds up as it passes through glass to air and refracts away from the normal |
| Glass prism is able to bend Light because_____ | Light is refracted as it enters a different medium |
| Which of the following is a transverse wave | An ocean wave approaching the shore |
| Which of the following would have the least effect on an experiment exploring an object resident's frequency | the light conditions |
Created by:
amgrace