Gamma+Rays

=Unit 2 Optics=

Chapter 4 Many properties of light can be understood using a wave model of light.
4.3 Light and the Electromagnetic Spectrum


 * 4.3 Gamma Rays** Pg 152

Section 4.3 is about gamma rays. Gamma rays are a part of the electromagnetic system. They have the amount of energy and the shortest wavelength. Gamma Rays are produced by the hottest regions of the universe. Gamma rays have many uses. For one we use gamma rays in radiation therapy to kill cancer cells.


 * **Questions** || **Answers** ||
 * Gamma rays have the shortest wave length (t) or (f) || True ||
 * What are two examples of things that cause gamma rays naturally? || Nuclear reactions and hot regions of the world. ||
 * What can produce more energy than earth's Sun will in its lifetime? || Gamma ray explosions ||
 * About how long is the estimated life of our sun? || 10 billion years ||
 * Can gamma rays be both helpful and harmful? How? || Yes they can be dangerous but they can also be used for radiation therapy to kill cancer cells. ||
 * About how long is the estimated life of our sun? || 10 billion years ||
 * Can gamma rays be both helpful and harmful? How? || Yes they can be dangerous but they can also be used for radiation therapy to kill cancer cells. ||
 * Can gamma rays be both helpful and harmful? How? || Yes they can be dangerous but they can also be used for radiation therapy to kill cancer cells. ||
 * Can gamma rays be both helpful and harmful? How? || Yes they can be dangerous but they can also be used for radiation therapy to kill cancer cells. ||

Links: [|Gamma Ray for Kids]