Spectrum Lab
Part 1: Radio Wave Activity
2) What is the average distance covered in five seconds? 6.85 meters
3) Calculate the speed of your lab group's radio wave pulse by dividing the average distance by five seconds. What is the speed of your lab group's radio wave pulse? 1.87 m/sec.
3) Calculate the speed of your lab group's radio wave pulse by dividing the average distance by five seconds. What is the speed of your lab group's radio wave pulse? 1.87 m/sec.
5) What is the average time required to walk to the object or wall and return to the starting position? 12.6 seconds
6) Calculate the distance to the object by multiplying the average number of seconds times the calculated speed of the radio wave pulse and dividing the product by two. What is the calculated distance to the object or all? 6.63 meters
7) If your teacher instructs you to do so, use a measuring tape to measure the actual distance to the object or wall. How accurate was your calculated distance? the estimated distance was not very accurate because
Part 2: Light Spectrum Activity
8) Which element or elements appear to be present in the atmosphere of Twinkle Star?
helium and hydrogen.
9) Which element or elements appear to be present in the atmosphere of Twilight Star?
sodium and helium
10) Which element or elements appear to be present in the atmosphere of Twisting Star?
calcium and hydrogen.
11) Place the following six stars in order of increasing surface temperature, based on the color of the stars: the sun (yellow), Procyon (white), Betelgeuse (red), Rigel (blue-white), Alpha Centauri B (red-orange), and Bellatrix (blue).
Betelgeuse, Alpha Centauri B, the Sun, Procyon, Rigel, and Bellatrix.
12) Why are stars with higher temperatures blue instead of red?
because they have short wavelength and they have high energy, therefore the color is blue, not red.
6) Calculate the distance to the object by multiplying the average number of seconds times the calculated speed of the radio wave pulse and dividing the product by two. What is the calculated distance to the object or all? 6.63 meters
7) If your teacher instructs you to do so, use a measuring tape to measure the actual distance to the object or wall. How accurate was your calculated distance? the estimated distance was not very accurate because
Part 2: Light Spectrum Activity
8) Which element or elements appear to be present in the atmosphere of Twinkle Star?
helium and hydrogen.
9) Which element or elements appear to be present in the atmosphere of Twilight Star?
sodium and helium
10) Which element or elements appear to be present in the atmosphere of Twisting Star?
calcium and hydrogen.
11) Place the following six stars in order of increasing surface temperature, based on the color of the stars: the sun (yellow), Procyon (white), Betelgeuse (red), Rigel (blue-white), Alpha Centauri B (red-orange), and Bellatrix (blue).
Betelgeuse, Alpha Centauri B, the Sun, Procyon, Rigel, and Bellatrix.
12) Why are stars with higher temperatures blue instead of red?
because they have short wavelength and they have high energy, therefore the color is blue, not red.