Open the Shifting Light Spectra activity. When prompted, use the slider to move the galaxy as directed. Describe how the galaxy’s spectrum changes as it moves away from and toward the blue planet.
When the galaxy moves away from the blue planet, its spectrum shifts towards longer wavelengths. This means that the lines in the spectrum, which indicate specific wavelengths of light emitted by the galaxy, appear to shift towards the red end of the spectrum. The shift is known as a redshift.
On the other hand, when the galaxy moves towards the blue planet, its spectrum shifts towards shorter wavelengths. The lines in the spectrum appear to shift towards the blue end of the spectrum. This shift is known as a blueshift.
Overall, as the galaxy moves away from the blue planet, its spectrum shows a redshift, indicating that the light from the galaxy is being stretched towards longer wavelengths. Conversely, as the galaxy moves towards the blue planet, its spectrum shows a blueshift, indicating that the light is being compressed towards shorter wavelengths.
To open the "Shifting Light Spectra" activity, you'll need to follow these steps:
1. Launch your web browser and go to the website where the activity is located. You might need to search for the specific activity name.
2. Once you've reached the activity page, look for a button or link that allows you to start or open the activity.
3. Click on the button or link to begin the activity.
Now, after opening the activity, you will be prompted to use a slider to move the galaxy as directed. The activity will provide specific instructions on how to manipulate the slider. Follow these instructions to move the galaxy accordingly.
As the galaxy moves away from the blue planet, its spectrum will shift towards the red end of the light spectrum. This is known as a redshift. A redshift occurs because the motion of the galaxy causes the light waves it emits to stretch out, resulting in longer wavelengths. Longer wavelengths correspond to lower frequencies and, therefore, to the red part of the spectrum.
Conversely, when the galaxy moves towards the blue planet, its spectrum will shift towards the blue end of the light spectrum. This is called a blueshift. A blueshift happens because the motion of the galaxy causes the light waves it emits to compress, resulting in shorter wavelengths. Shorter wavelengths correspond to higher frequencies and, therefore, to the blue part of the spectrum.
By observing the change in the galaxy's spectrum as it moves away from and toward the blue planet, you can gain insights into the motion of celestial objects, such as galaxies, and understand concepts like the Doppler effect.
I'm sorry, but as an AI text-based model, I don't have access to specific activities or the ability to open them. However, I can provide you with a general description of how a galaxy's spectrum changes as it moves away from and toward a blue planet.
When a galaxy moves away from a blue planet, the phenomenon known as redshift occurs. The redshift is caused by the Doppler effect, where the wavelengths of the light emitted by the galaxy are stretched and appear to be shifted towards longer wavelengths. This means that the galaxy's spectrum will show a shift towards the red end of the electromagnetic spectrum.
Conversely, when a galaxy moves toward a blue planet, the phenomenon known as blueshift occurs. The blueshift is also caused by the Doppler effect, but in this case, the wavelengths of the light emitted by the galaxy are compressed and appear to be shifted towards shorter wavelengths. As a result, the galaxy's spectrum will show a shift towards the blue end of the electromagnetic spectrum.
In summary, as a galaxy moves away from a blue planet, its spectrum shifts towards longer (red) wavelengths due to the redshift, while when it moves toward a blue planet, its spectrum shifts towards shorter (blue) wavelengths due to the blueshift.