SpaceTelescopeNotesICS16CAB

=Space Telescope Notes=

** Definitions **

 * 1) ** Energy **- The ability to do work.
 * 2) Radiation- Energy that comes from a source and travels through some material or through space. Light, heat and sound are types of radiation.
 * 3) ** Wavelengths- ** Light is measured by wavelengths, one wavelength is the distance between two successful crests or troughs.
 * 4) Frequency - Number of crests of a wave that move past a given point in a given unit of time.
 * 5) **Reflect-** When light bounces off an object that doesn't absorb it
 * 6) Refract- Bending of light as it passes from one substance to another.
 * 7) Absorb- The process by which one substance takes up another substance through minute pores or spaces between its molecules.

Answer each question as TRUE or FALSE. After each answer, write one or two sentences from the website that provides evidence to support your answer.

1. The electromagnetic spectrum is made up of only visible light.
 * FALSE. This is false because visible light is only one part of the EM spectrum and all other parts cannot be seen by the human eye.

2. Microwaves are used to communicate with satellites because they can pass through parts of our atmosphere.
 * TRUE. This is true because microwave energy can penetrate haze, light rain and snow, clouds, and smoke. An example of this is the JERS satellite.

3. Mechanical waves such as sound cannot travel through space
 * TRUE. This is true because sound waves need molecules to bump into each other in order for them to transmit and since space dosen't have molecules they cannot travel through it.

4. Waves in the electromagnetic spectrum with long wavelengths have the most energy.
 * FALSE. This is false because as the energy increases the waves actually get smaller, for example gamma waves are the highest energy but have the smallest wavelengths.

5. Because we knowing how fast light travels and how it is reflected, we can use this information to figure out how far away objects are.
 * TRUE: This reflective behavior of light is used by lasers onboard NASA's LRO to map the surface of the Moon.

6. Different types (wavelengths) of light are refracted (bent) differently. > 7. EXTRA CREDIT: Why do you think this would be a problem when making a telescope using lenses.
 * TRUE: Different wavelengths of light are slowed at different rates, which causes them to bend at diferent angles
 * TRUE: Many objects in the universe are too cool and faint to be detected.

8. Even though we can’t see it with our eyes, cooler objects such as planets and people emit infrared waves that can be studied with special instruments.
 * FALSE: The Earth's atmosphere absorbs most of the highenergy UV radiation.

9. Ultraviolet light from space is easily researched using ground telescopes.
 * TRUE. This is true because we have lots of pictures of things in space using UV light.

9. A star that emits mostly yellow visible light is hotter than a red star.
 * TRUE: The Sun has mostly yellow light than any other light because the sun's temperature is really high.

10. Absorption lines in the visible spectra and patterns of reflectance can be used to tell us what distant objects like stars and planets are made of.
 * TRUE: The patterns can provide important scientific info that revel properties that are the n the universe.

11. EXTRA CREDIT: Using question 6: Why do you think this would be a problem when making a telescope using lenses?
 * Different colors bend differently, the images we see from far away will be distorted and seem out of focus

Reflection Questions

1. What characteristic does your group feel is most important in your ranking system?

2. Why do you feel this is more important than the others?

3. Can you properly explain your selection process?

Readiness Questions

1. What is the Problem? -It is that Luke doesn't know what telescope is the best.

2. Who is the client? -Luke s. Walker

3. What is the client asking your team to do? -Rank the telescopes in a order that we think is right And provide a clear procedure for how we chose the order.

4. What things do you need to include in your solution? -A ranking of the telescopes and categories and a clear procedure.

5. Do you think there is more than one correct answer to what the client is asking? Why or why not? - YES because he is asking for our educated opinion.

Ranking of telescopes

Extended Time Target Acquisition High Resolution Advanced Spectroscope Wide Field