EMS and Star Spectra Analysis Review
Authored by Chao Vang
Science
10th Grade
NGSS covered
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following elements is/are represented in the spectrum below?
Hydrogen only
Helium only
Hydrogen and helium
Calcium only
Tags
NGSS.HS-ESS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Sun’s spectrum contains spectral lines from neutral sodium and calcium as well as ionized magnesium and iron. Of the choices below, which could be the surface temperature of the Sun?
4,200 K
5,800 K
8,900 K
14,300 K
Tags
NGSS.HS-PS4-3
NGSS.HS-PS4-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The spectrum of a distant star contains sodium lines that are offset from their normal position, as shown. What is the most likely explanation?
The star is relatively hot.
The star is relatively cool.
The star is moving rapidly toward us.
The star is moving rapidly away from us.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the 1920s, Edwin Hubble looked at the spectra of stars from distant galaxies. To his surprise, he found that all of these spectra were red-shifted, and that the more distant the galaxy, the greater the red-shift. What is a reasonable conclusion from this evidence?
The universe is expanding.
The universe is contracting.
The universe is unchanging.
The universe is curved.
Tags
NGSS.HS-ESS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element is not represented in the star spectrum below?
Hydrogen
Helium
Calcium
Magnesium
Tags
NGSS.MS-PS1-1
6.
DRAG AND DROP QUESTION
1 min • 1 pt
4. Let’s use the term frequency of waves perceived by the observer to describe the frequency at which waves are passing through the receiver. How do you describe the frequency of waves perceived by the observer when the waves are moving away from the observer?
4. Let’s use the term frequency of waves perceived by the observer to describe the frequency at which waves are passing through the receiver. How do you describe the frequency of waves perceived by the observer when the waves are moving away from the observer?
The Frequency of the waves perceived by the observer are (higher/lower) (a) as the waves move away the observer
Tags
NGSS.HS-PS4-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an ambulance move TOWARD you it sounds ________ pitched.
Tags
NGSS.HS-PS4-1
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