11 December 2011
Friday, December 16 2011
16/12/11 06:55 Filed in: Astronomy
Today in class, we explored star formation and evolution. For homework, please make sure your star notes are complete and that you have answered the associated Regents questions. All the content and questions can be found in this LinkViewer document. Here are the items that must be in your notes:
Additionally, your projects are due on Monday and our next test will be on Wednesday.
For your project, please submit any digital work using a thumb drive. If your project is on an iPad, let me know so I can retrieve it for grading. If you are doing a poster, paper or other physical project, please bring it to class on Monday. You will lose 5 points for every day the project is late.
For next week’s test, here is the practice test and here are the practice test answers. These should be completed by Tuesday so we can review them in class.
- What is a star?
• How do Stars create energy?
• So, what is nuclear fusion?
• Draw a simple diagram of nuclear fusion
• How do stars form? (5 bullets)
• Mass is important (draw diagram)
• So, what’s our star like? (4 bullets)
• Do all Regents questions
Additionally, your projects are due on Monday and our next test will be on Wednesday.
For your project, please submit any digital work using a thumb drive. If your project is on an iPad, let me know so I can retrieve it for grading. If you are doing a poster, paper or other physical project, please bring it to class on Monday. You will lose 5 points for every day the project is late.
For next week’s test, here is the practice test and here are the practice test answers. These should be completed by Tuesday so we can review them in class.
Thursday, December 15, 2011
15/12/11 07:51 Filed in: Astronomy
Today in class, we completed the Galaxy Classification lab using this handout and this linkviewer document.
There is no homework due tomorrow, however, you’re projects are due on Monday and our next test will be on Wednesday.
For your project, please submit any digital work using a thumb drive. If your project is on an iPad, let me know so I can retrieve it for grading. If you are doing a poster, paper or other physical project, please bring it to class on Monday. You will lose 5 points for every day the project is late.
For next week’s test, here is the practice test and here are the practice test answers. These should be completed by Tuesday so we can review them in class.
There is no homework due tomorrow, however, you’re projects are due on Monday and our next test will be on Wednesday.
For your project, please submit any digital work using a thumb drive. If your project is on an iPad, let me know so I can retrieve it for grading. If you are doing a poster, paper or other physical project, please bring it to class on Monday. You will lose 5 points for every day the project is late.
For next week’s test, here is the practice test and here are the practice test answers. These should be completed by Tuesday so we can review them in class.
Wednesday, December 14, 2011
14/12/11 07:05 Filed in: Astronomy
Today in class, we completed our discussion of energy, the doppler shift, and the Big Bang. Remember, the Big Bang is thought to have occurred sometime between 13 and 15 billion years ago. The evidence supporting this theory includes the fact that everything is red-shifted (the Universe is expanding) and the observation of cosmic background radiation.
For homework, please completed the TestWizard quiz entitled “Universe Homework #1.” I will be closing this assignment tomorrow at 3pm.
For homework, please completed the TestWizard quiz entitled “Universe Homework #1.” I will be closing this assignment tomorrow at 3pm.
*Note: Your natural disaster projects are due on Monday, December 19.
Tuesday, December 13, 2011
13/12/11 07:14 Filed in: Astronomy
Today in class, we continued our discussion of energy, the Doppler shift, and how this supports the Big Bang theory. For homework tonight, please complete the Doppler Shift of Galaxies Lab, including the 12 practice Regents questions at the end.
Here is the information we should understand at this point:
*Note: Your natural disaster projects are due on Monday, December 19.
Here is the information we should understand at this point:
- The theory of the creation of the Universe which states that all matter and energy was once together in one point which exploded in all directions forming the Universe.
- Whenever an object’s visible spectrum is shifted to the red side (red-shifted), it means the object is moving away from the observer. If it is shifted to the blue side (blue-shifted), it means the object is moving towards the observer.
- This spectrum from this “distant star” is shifted to the right, towards the infrared wavelengths, and is therefore called “red-shifted”. This means that this star is moving away from the observer. If the pattern of spectral lines were shifted towards the ultraviolet, or “blue-shifted”, it would signify that the star is moving towards the observer.
- Every object in the Universe is red-shifted, meaning that the Universe is expanding
*Note: Your natural disaster projects are due on Monday, December 19.
Monday, December 12, 2011
12/12/11 06:58 Filed in: Astronomy
Today in class, we began exploring energy and how it can be used to determine whether a celestial object is moving towards us or receding away from us. Here are the key ideas from class:
For homework, please print and complete this worksheet. You will need to use your ESRT to complete the questions.
- All objects emit energy, which travels in waves.
- What makes one type of energy different from another is it’s wavelength.
- When an object moves, the wavelength of the energy it’s emitting is changed by that motion.
- We can determine if an object is moving by looking at it’s spectrum to see if it’s wavelength has shifted.
- Objects who have spectra shifted towards the red-end of the spectrum are moving away from us, while those shifted towards the blue end of the spectrum are approaching.
- Almost all objects in space are red-shifted, meaning the Universe appears to be expanding.
For homework, please print and complete this worksheet. You will need to use your ESRT to complete the questions.
