Visable Light And Colour

• What is visible light made up of?

  A spectrum of different colors
• Which color has the shortest wavelength?

  Violet
• What acronym can help remember the order of colors in the spectrum?

  Roy G. Biv
• Why aren't white and black included in the visible light spectrum?

  White is a combination of all wavelengths
• What does blackness represent in terms of light?

  An absence of light
• What determines the color an object appears?

  The wavelengths of light hitting it
• What are opaque objects?

  Objects that don't transmit any light
• How does a gas appear blue?

  It reflects blue wavelengths of light
• What do transparent objects do with light?

  They transmit lots of light that hits them
• How do translucent objects differ from transparent objects?

  They only transmit some of the light
• What determines the color of a translucent object?

  The wavelengths of light transmitted most
• Why does a green plastic bottle appear green?

  It transmits green wavelengths and absorbs others
• What is the function of color filters?

  To filter out particular colors of light
• What is a primary color filter?

  A filter that allows one primary color through
• How would white paper appear through a green filter?

  It would appear green
• How would a blue object appear through a green filter?

  It would appear black
• What do yellow filters allow through?

  Yellow light, red, and green wavelengths
• What are the properties of opaque, transparent, and translucent objects?

  • Opaque: Do not transmit light; absorb or reflect all light.
  • Transparent: Transmit nearly all light; see-through.
  • Translucent: Transmit some light; visibility depends on light proportion.
• How do color filters work?

  • Filter out specific colors.
  • Transmit certain wavelengths while absorbing others.
  • Primary color filters allow one primary color through.