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Wednesday, August 24

  1. page Wave Interactions edited ... N-I=R Reflection can be different though in different conditions. In a condition like water, …
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    N-I=R
    Reflection can be different though in different conditions. In a condition like water, the light will reflect in a different angle because their is different density to say air. This is why sometimes when we got to reach for something we see in the water and its in a different spot. Here is an example.
    http://interactagram.com/physics/optics/refraction/
    Diffraction
    Diffraction is when a wave encounters an obstacle in its path. Properties that can contribute to diffraction is the wavelength as the wave may be long enough to reach an object. Other factors that may contribute to diffraction is the actual path the wave is travelling in, leading the wave to the object. Diffraction can interact with the environment by affecting certain objects made of atoms. An example of diffraction is ocean waves passing through a buoy, the waves bend around it but also affects it by making it move. Diffraction can occur with all waves as long as the factors occur.
    (view changes)
    10:02 pm
  2. page Wave Interactions edited ... The law of reflection is basically when light rebounds off a surface like a mirror. This law c…
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    The law of reflection is basically when light rebounds off a surface like a mirror. This law consists of three main properties, the reflection ray, the incidence ray and the normal line. The incidence ray is when the light travels in a direction off a mirror and the reflection ray is the direction the light reflects of the mirror. The normal line is an imaginary line that is in the middle between the two ray's. Each ray will have an angle. To work out the reflection ray's angle, you must subtract the normal line's angle (90 degrees) with the ray of incidence's angle. The formula is below.
    N-I=R
    Reflection can be different though in different conditions. In a condition like water, the light will reflect in a different angle because their is different density to say air. This is why sometimes when we got to reach for something we see in the water and its in a different spot. Here is an example.
    http://interactagram.com/physics/optics/refraction/

    Diffraction
    Diffraction is when a wave encounters an obstacle in its path. Properties that can contribute to diffraction is the wavelength as the wave may be long enough to reach an object. Other factors that may contribute to diffraction is the actual path the wave is travelling in, leading the wave to the object. Diffraction can interact with the environment by affecting certain objects made of atoms. An example of diffraction is ocean waves passing through a buoy, the waves bend around it but also affects it by making it move. Diffraction can occur with all waves as long as the factors occur.
    (view changes)
    10:02 pm
  3. page Bibilography edited ... Link: http://en.wikipedia.org/wiki/Energy Last Edited: 31/7/11 27. Source: Physics classroo…
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    Link: http://en.wikipedia.org/wiki/Energy
    Last Edited: 31/7/11
    27. Source: Physics classroom
    Link: http://www.physicsclassroom.com/mmedia/optics/lr.cfm
    Last Edited: 2011

    (view changes)
    9:52 pm
  4. page Wave Interactions edited ... Speed of light in vacuum/speed of light in medium Speed of light usually travels faster in a …
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    Speed of light in vacuum/speed of light in medium
    Speed of light usually travels faster in a vacuum than light would travel in a material. This is because the air is more dense and has more space to travel in.
    Law of Reflection
    {jui.gif}
    The law of reflection is basically when light rebounds off a surface like a mirror. This law consists of three main properties, the reflection ray, the incidence ray and the normal line. The incidence ray is when the light travels in a direction off a mirror and the reflection ray is the direction the light reflects of the mirror. The normal line is an imaginary line that is in the middle between the two ray's. Each ray will have an angle. To work out the reflection ray's angle, you must subtract the normal line's angle (90 degrees) with the ray of incidence's angle. The formula is below.
    N-I=R

    Diffraction
    Diffraction is when a wave encounters an obstacle in its path. Properties that can contribute to diffraction is the wavelength as the wave may be long enough to reach an object. Other factors that may contribute to diffraction is the actual path the wave is travelling in, leading the wave to the object. Diffraction can interact with the environment by affecting certain objects made of atoms. An example of diffraction is ocean waves passing through a buoy, the waves bend around it but also affects it by making it move. Diffraction can occur with all waves as long as the factors occur.
    (view changes)
    9:49 pm
  5. file jui.gif uploaded
    9:37 pm
  6. file jui.gif uploaded
    9:36 pm

Sunday, August 21

  1. page Wave Interactions edited ... Refractive Index is the measurement of speed of light in a substance. It's measured as a ratio…
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    Refractive Index is the measurement of speed of light in a substance. It's measured as a ratio as the formula is listed below:
    Speed of light in vacuum/speed of light in medium
    ...
    is because the air is more dense and has more space to travel in.
    Diffraction
    Diffraction is when a wave encounters an obstacle in its path. Properties that can contribute to diffraction is the wavelength as the wave may be long enough to reach an object. Other factors that may contribute to diffraction is the actual path the wave is travelling in, leading the wave to the object. Diffraction can interact with the environment by affecting certain objects made of atoms. An example of diffraction is ocean waves passing through a buoy, the waves bend around it but also affects it by making it move. Diffraction can occur with all waves as long as the factors occur.
    (view changes)
    3:57 am

Monday, August 15

Sunday, August 14

  1. page Wave Interactions edited ... A demonstration of reflection. Refraction ... example visually. {755px-GGB_reflection_…
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    A demonstration of reflection.
    Refraction
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    example visually.
    {755px-GGB_reflection_in_raindrops.jpg}
    Mentioned before, speed is a main contribution in creating refraction. A property that is a factor in creating refraction is period as that measures the amount of time the wave takes to travel a certain distance.
    Refractive Index
    Refractive Index is the measurement of speed of light in a substance. It's measured as a ratio as the formula is listed below:
    Speed of light in vacuum/speed of light in medium
    Speed of light usually travels faster in a vacuum than light would travel in a material. This is because

    Diffraction
    Diffraction is when a wave encounters an obstacle in its path. Properties that can contribute to diffraction is the wavelength as the wave may be long enough to reach an object. Other factors that may contribute to diffraction is the actual path the wave is travelling in, leading the wave to the object. Diffraction can interact with the environment by affecting certain objects made of atoms. An example of diffraction is ocean waves passing through a buoy, the waves bend around it but also affects it by making it move. Diffraction can occur with all waves as long as the factors occur.
    (view changes)
    7:30 pm
  2. page Wave Questions edited ... The speed of light is currently 299 792 458m/s. How do we know they are there and measure the…
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    The speed of light is currently 299 792 458m/s.
    How do we know they are there and measure them, if we can't see them?
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    certain measurement.
    Can we bend light?
    Light can bend, depending on what the light travels through. If light travels through a solid, light will often bend around the solid.
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    How do we hear?
    We hear through our ears which sound waves or vibrations go through. Theres a part in the ear called the eardrum which sends the sound to a certain part in our brain. It acts like a messenger, without the eardrum our brain wouldn't receive the sound.
    {Ear-Diagram-plus-muscles-20.jpg}
    How do we see
    Much like the ear, to see we need a type organ named the eye. The eye allows us to see with the lens which is located in the eye. Light is involved as it projects the images we see into our lens. From there, the lens send the images the light gave us to a certain nerve which sends the information to our brain very much like the ear sends the information. Below is a diagram explaining the eye.
    (view changes)
    6:59 pm

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