Objective: SWBAT understand what the photoelectric effect is and why Einstein's explanation of it was an important advancement of science.
Warm Up: What is a Blackbody? What is Planck's constant and how does it relate to Blackbody radiation?
Friday, March 30, 2012
Wednesday, March 28, 2012
3/28
Objective: SWBAT review for tomorrow's test on Diffraction and Interference of waves
Warm Up: What are the four phenomena that waves undergo? Briefly describe each.
Warm Up: What are the four phenomena that waves undergo? Briefly describe each.
Tuesday, March 27, 2012
3/27
Pulling out my hair in the name of science.... ;-)
Objective: SWBAT use diffraction to determine the width of a human hair.
Warm Up: Pick up a laser pointer and a diffraction grating. Determine the wavelength of your laser using what you've learned about diffraction.
Note: 4th Q extra credit is posted at the bottom of the blog. It is due in early May.
Objective: SWBAT use diffraction to determine the width of a human hair.
Warm Up: Pick up a laser pointer and a diffraction grating. Determine the wavelength of your laser using what you've learned about diffraction.
Note: 4th Q extra credit is posted at the bottom of the blog. It is due in early May.
Friday, March 23, 2012
3/23
Objective: SWBAT virtually determine the diffraction pattern of water, sound and light.
Warm Up: Pick up one lab handout. Form a group of NO MORE THAN 3. Open the PhET Diffraction and Interference Sim on a computer and begin the lab.
Warm Up: Pick up one lab handout. Form a group of NO MORE THAN 3. Open the PhET Diffraction and Interference Sim on a computer and begin the lab.
Thursday, March 22, 2012
3/22
Objective: SWBAT calculate the interference of light waves.
Warm Up: Why are soap bubbles multicolored?
Warm Up: Why are soap bubbles multicolored?
Wednesday, March 21, 2012
3/21
Objective: SWBAT calculate the wavelength of light given the interference pattern it produces.
Warm Up: What is the superposition principal? How can that be applied to light waves?
Warm Up: What is the superposition principal? How can that be applied to light waves?
Monday, March 19, 2012
3/19
Objective: SWBAT review for tomorrow's test on light, reflection and refraction.
Warm Up: A magnifying glass is held 5 cm above a flower. The image that forms is upside down. What do you know about the lens in the magnifying glass?
Warm Up: A magnifying glass is held 5 cm above a flower. The image that forms is upside down. What do you know about the lens in the magnifying glass?
Thursday, March 15, 2012
3/15
Et tu, Brute?
Objective: SWBAT determine the critical angle of refraction for a substance.
Warm Up: A light ray within a diamond (n=2.4) cannot escape into air, but instead is totally internally refracted. At what angle must the light ray have struck the surface for this to occur?
Objective: SWBAT determine the critical angle of refraction for a substance.
Warm Up: A light ray within a diamond (n=2.4) cannot escape into air, but instead is totally internally refracted. At what angle must the light ray have struck the surface for this to occur?
Wednesday, March 14, 2012
3/14
Objective: SWBAT experimentally determine the index of refraction of a piece of glass.
Warm Up: Pick up one copy of the lab and preread the instructions.
Warm Up: Pick up one copy of the lab and preread the instructions.
Tuesday, March 13, 2012
3/13
Objective: SWBAT use Snell's Law to calculate the refraction of a light ray.
Warm Up: Get out your calculator, pencil and pick up a ruler. Quiz Time.
Warm Up: Get out your calculator, pencil and pick up a ruler. Quiz Time.
Monday, March 12, 2012
3/12
Objective: SWBAT calculate the magnification of a curved mirror.
Warm Up: An object is places 12 cm in front of a mirror whose magnification is -5. What is the focal length of the mirror?
Warm Up: An object is places 12 cm in front of a mirror whose magnification is -5. What is the focal length of the mirror?
Friday, March 9, 2012
3/9
Objective: SWBAT calculate the image location and height in a mirror.
Warm Up: An object is placed 10 cm in front of a concave mirror whose focal length is 8 cm. Using a ray diagram, determine where the image will form, and its type ,size and orientation.
Warm Up: An object is placed 10 cm in front of a concave mirror whose focal length is 8 cm. Using a ray diagram, determine where the image will form, and its type ,size and orientation.
Wednesday, March 7, 2012
3/7
Objective: SWBAT explain how electromagnetic waves propogate and list the types of EM waves.
Warm Up: Draw a diagram of the EM spectrum and label the 7 types of EM waves.
Warm Up: Draw a diagram of the EM spectrum and label the 7 types of EM waves.
Monday, March 5, 2012
3/5
Objective: SWBAT review to tomorrow's test on characteristics of waves and sound.
Warm Up: A car moving 20 m/s away from you sounds it horn whose true frequency is 950 Hz. What frequency do you hear?
Warm Up: A car moving 20 m/s away from you sounds it horn whose true frequency is 950 Hz. What frequency do you hear?
Friday, March 2, 2012
3/2
Yesterday's Lab will be due next Wed.
Objective: SWBAT calculate the harmonic frequencies of a wave.
Warm Up: When all the keys on a flute are depressed the lowest note that it can play is middle C. If the speed of sound in air is 343 m/s and assuming the flute is a cylindrical tube open at both ends, determine the length of the flue from the mouthpiece to the end of the tube.
Objective: SWBAT calculate the harmonic frequencies of a wave.
Warm Up: When all the keys on a flute are depressed the lowest note that it can play is middle C. If the speed of sound in air is 343 m/s and assuming the flute is a cylindrical tube open at both ends, determine the length of the flue from the mouthpiece to the end of the tube.
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