Objectives: Discover flame color of metals
and use that to identify unkown metals.
Announcements: Show me your spectroscope for a grade and get your lab graded
Opening Data: Stellar Evolution - Video (Universe: 0107-0111)
Stellar Evolution
Did you finish????Flame Test Lab
Spectra for the elements
Objectives: Discover flame color of metals
and use that to identify unkown metals.
Announcements: Happy Solstice!
Opening Data: wavelength to frequency
Flame Test Lab
Spectra for the elements
Objectives: Discover flame color of metals
and use that to identify unkown metals.
Announcements: Show me your spectroscope for a grade and get your lab graded
Opening Data: Energy of Light = h × f
Planck's Constant, h = 6.626 × 10-34 Js
Flame Test Lab
Spectra for the elements
Objectives: Determine the identity of unknown elements using the spectra created with your spectroscope
Announcements: Show me your spectroscope for a grade and get your lab graded
Opening Data: Speed of Light
c = 3.0 x 10^8 meters/second
light year = ly = 9.5 x 10^15 meters
parsec = pc = 3.25 ly = 3.1 x 10^16 meters
Einstein & Relativity
Flame Test Lab
Spectra for the elements
Objectives: Determine the identity of unknown elements using the spectra created with your spectroscope
Announcements: Finish today by EOP
Opening Data: None
In your journals:
- Mercury spectrum drawing
- Scale numbers where you saw each color
- Calibration curve printed out
- Drawing for each unknown gas spectrum
- Scale numbers (each color)
- Wavelengths of each color
- Element Identity
Spectra for the elements
Objectives: Determine the identity of unknown elements using the spectra created with your spectroscope
Announcements:
Opening Data:
Examine Mercury Spectrum Tube with your spectroscope and create a "calibration curve".
Examine the spectra of unknown gases. Attempt to
determine the identity of each sample.
Spectra for the elements
Build a spectroscope
Objectives: Describe how the visible spectrum fits into the rest of the EM spectrum including how to distinguish one color from the next.
Announcements:
Opening Data:
Examine Mercury Spectrum Tube with your spectroscope and create a "calibration curve".
Examine the spectra of unknown gases. Attempt to
determine the identity of each sample.
Diffraction gratings
Spectra for the elements
Build a spectroscope
Objectives: Describe how the visible spectrum fits into the rest of the EM spectrum including how to distinguish one color from the next.
Announcements:
Opening Data: Diffraction gratings and Spectrum Tubes
Spectra for the elements
Build a spectroscope
Objectives: Describe how the visible spectrum fits into the rest of the EM spectrum including how to distinguish one color from the next.
Announcements: Do you have your cereal box?
Opening Data: Diffraction gratings and Spectrum Tubes
Build a spectroscope
Objectives: Describe how the visible spectrum fits into the rest of the EM spectrum including how to distinguish one color from the next.
Announcements: Do you have your cereal box?
Gotta have your box tomorrow as we start the
building process.
Let's get the answers...
- Describe the idea of the celestial sphere.
- What units is declination measured in?
- What are the units used to measure right ascension?
- Compare rt. ascension & declination to latitude and longitude on the earth.
- What is our latitude and longitude here in the classroom?
- What are lat. and long. measured in?
- Where on the Earth are latitude and longitude measured from (where's the "origin")?
- What's the 0,0 of rt. asc. & decl. called?
- Where is that located in the sky (which constellation)?
- When (on the calendar) is the Earth closest to the sun?
- What celestial event is closest to perihelion?
- Describe where the sun is during the vernal equinox.
- What day (typically) is the autumnal equinox?
- What happens during an equinox?
- What is the longest day of the year in the southern hemisphere?
Objectives: Describe how the visible spectrum fits into the rest of the EM spectrum including how to distinguish one color from the next.
Announcements: Diffraction & Rainbows
Do you have your cereal box?
Opening Data:
Remember those other questions?
(these should be in your notes...)
- Describe the idea of the celestial sphere.
- What units is declination measured in?
- What are the units used to measure right ascension?
- Compare rt. ascension & declination to latitude and longitude on the earth.
- What is our latitude and longitude here in the classroom?
- What are lat. and long. measured in?
- Where on the Earth are latitude and longitude measured from (where's the "origin")?
- What's the 0,0 of rt. asc. & decl. called?
- Where is that located in the sky (which constellation)?
- When (on the calendar) is the Earth closest to the sun?
- What celestial event is closest to perihelion?
- Describe where the sun is during the vernal equinox.
- What day (typically) is the autumnal equinox?
- What happens during an equinox?
- What is the longest day of the year in the southern hemisphere?
