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Waves
wave go boing
| Question | Answer |
|---|---|
| What is a wave? | A disturbance caused by the mechanical motion of some particle of matter. |
| What is a medium? | Any matter that is used to transport the energy of the waves. Can be solid, liquid or gas. |
| A mechanical wave is... | A type of wave caused by the movement of physical matter |
| What happens when a wave propagates through physical matter? | It moves through the matter's particles. "Propagate" is the same as "Travel". |
| What kind of wave is a sound wave? | A Mechanical Wave |
| Do electromagnetic waves require a medium? | No |
| Where can electromagnetic waves go that mechanical waves cannot? | Inside a Vacuum |
| What is a vacuum? | A completely empty space, not even taken up by gas. |
| What is Wavelength? | The distance between any two identical points on a wave. |
| What is Amplitude? | Maximum displacement of a wave particle from the midpoint between the crest and trough. |
| What is the crest of a wave? | The highest point of the wave. |
| What is the trough of a wave? | The lowest point of the wave. |
| What is the period of a wave? | The time required for a wave particle to complete one full cycle of its motion. |
| What are waves measured in? | Hertz (Hz) |
| What is frequency? | The amount of wave crests that occur in a unit of time. |
| What is the velocity formula? | Velocity = Frequency*Wavelength |
| What is the symbol for wavelength? | Lambda (λ) |
| Reflection is.... | when waves bounce off of a surface |
| What is an example of reflection? | Looking into the mirror. Waves bounce from the mirror into your eyes. |
| If a wave is only partially reflected, the leftover energy is.... | Absorbed |
| When waves travel through matter, they are being... | Transmitted |
| Reflection | waves bounce off the surface at the same angle it hit it |
| Transmission | travels through the material at the same angle it entered |
| Refraction | travels through the material, but now at a different angle |
| Diffraction | travels through the material until an obstacle is encountered. The proceeds to BEND around the object and pass. |
| Absorption | does not travel all the way through the material. |
| Interference | Wave come from 2 sources and meet. They then affect each other in different ways. |
| Law of Reflection | States that the angle of reflection equals the angle of incidence |
| Angle of Incidence | Angle of which light hits the surface |
| Angle of Reflection | Angle that the light bounces off the surface |
| Refraction does what based on the density of the medium? | It bends the wave |
| What is Snells Law? | n1sinθ1=n2sinθ2 |
| What is Visible Light | Light that humans can see with the naked eye |
Created by:
BurgerKing_07
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