Difference between revisions of "Wave"
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: [[Wave]]s can transmit [[energy]] and information from one place to another. | : [[Wave]]s can transmit [[energy]] and information from one place to another. | ||
: [[Wave]]s travel through a [[medium]] that allows the [[vibration]]. | : [[Wave]]s travel through a [[medium]] that allows the [[vibration]]. | ||
+ | When a [[wave]] meets a boundary between two [[material]]s it can be: | ||
+ | *[[Absorb (Physics)|Absorbed]] - The [[wave]] disappears and the new material gains [[energy]] from the [[wave]]. | ||
+ | *[[Reflection|Reflected]] - The [[wave]] bounces off the new [[material]]. | ||
+ | *[[Refraction|Refracted]] - The [[wave]] enters the new [[medium]] changing direction as it does. | ||
: There are two types of [[wave]]; [[Transverse Wave|transverse]] and [[Longitudinal Wave|longitudinal]]. | : There are two types of [[wave]]; [[Transverse Wave|transverse]] and [[Longitudinal Wave|longitudinal]]. | ||
: In [[Longitudinal Wave|longitudinal waves]] the [[vibration]] is in the same direction as the [[Energy Transfer|energy transfer]]. | : In [[Longitudinal Wave|longitudinal waves]] the [[vibration]] is in the same direction as the [[Energy Transfer|energy transfer]]. |
Revision as of 13:54, 20 October 2018
Key Stage 3
Meaning
A wave is a vibration that transfers energy from one location to another.
About Waves
- Waves can transmit energy and information from one place to another.
- Waves travel through a medium that allows the vibration.
When a wave meets a boundary between two materials it can be:
- Absorbed - The wave disappears and the new material gains energy from the wave.
- Reflected - The wave bounces off the new material.
- Refracted - The wave enters the new medium changing direction as it does.
- There are two types of wave; transverse and longitudinal.
- In longitudinal waves the vibration is in the same direction as the energy transfer.
- In transverse waves the vibration is perpendicular to the direction as the energy transfer.
Examples
Transverse Wave | Longitudinal Wave |
This is a transverse wave on a string where the vibration is perpendicular to the motion of the wave. | This is a longitudinal wave on a string where the vibration is parallel to the motion of the wave. |
Water Waves |
A water wave appears to be transverse from the surface. |
Sound Waves |
Sound waves are longitudinal waves of compression. |
Light Waves |
Light waves are electromagnetic waves, which are transverse with the vibration at right angles to the motion of the wave. |