Producing+the+Visible+Spectrum

=Unit 2 Optics=

Chapter 4: Many properties of light can be understood using a wave model of light.
4.2 Properties of Visible Light

__4.2 Producing the Visible Spectrum p. 147__
Before, lots of people thought that when white light went through a coloured object, the object gave the white light colour. Isaac Newton wanted to see if this was true, so he made an experiment by focusing a white light through clear angled glass. When he looked, he saw coloured light on the other side of the glass. Isaac concluded that colour was already in white light, but it was just that no one had found out about it.

- Light post - Flashlight ||
 * Questions || Answers ||
 * Is colour picked up when light strikes a coloured object? || No ||
 * Does light contain colour? || Yes. ||
 * In the (blank) century, English..... || 17th ||
 * Why do you think people thought that coloured objects gave colour to light? || They would think that because when a light hit a colored object the light would also turn that color. ||
 * Would you have thought this in their time? || No. ||
 * What is a prism? || A prism is a solid geometric figure. ||
 * What colours added up make up white light? || Mixing all the different colors of light make up white light. ||
 * The (blank) colours must have been.... || different ||
 * How does knowing about how white light has colour affect our thinking of colours? || That colors aren't always bright and colorful. ||
 * If white is all of the colours, than (blank) must have no colours added. || prisms ||
 * Name 2 examples of white light: (1.) || sunlight ||
 * (2.) || a thin beam of light from a light bulb. ||
 * What is a spectrum? || A spectrum is a band of colors. ||
 * What happens if one colour is missing from the spectrum? || The recombined light is no longer white. ||
 * Name 3 everyday objects that give out light. || - A lamp.
 * How does knowing about how white light has colour affect our thinking of colours? || That colors aren't always bright and colorful. ||
 * If white is all of the colours, than (blank) must have no colours added. || prisms ||
 * Name 2 examples of white light: (1.) || sunlight ||
 * (2.) || a thin beam of light from a light bulb. ||
 * What is a spectrum? || A spectrum is a band of colors. ||
 * What happens if one colour is missing from the spectrum? || The recombined light is no longer white. ||
 * Name 3 everyday objects that give out light. || - A lamp.
 * (2.) || a thin beam of light from a light bulb. ||
 * What is a spectrum? || A spectrum is a band of colors. ||
 * What happens if one colour is missing from the spectrum? || The recombined light is no longer white. ||
 * Name 3 everyday objects that give out light. || - A lamp.
 * What happens if one colour is missing from the spectrum? || The recombined light is no longer white. ||
 * Name 3 everyday objects that give out light. || - A lamp.
 * Name 3 everyday objects that give out light. || - A lamp.