Question

Question 1 (5 points)

Listen
How is a Cepheid variable star identified?
Question 1 options:


A)
Its luminosity dims as it rotates.


B)
It pulsates radially with a clear change in luminosity.


C)
Its brightness appears to change during transit.


D)
It's being torn apart by tidal forces.
Question 2 (5 points)

Listen
Which of the following statements regarding the moon is correct?
Question 2 options:


A)
The moon's surface exhibits active volcanism.


B)
The moon is tidally locked to Earth.


C)
The moon's surface exhibits plate tectonic activity.


D)
The moon's surface doesn't have any craters.
Question 3 (5 points)

Listen
What does Einstein's theory of relativity explain?
Question 3 options:


A)
How light interacts with moisture


B)
How gravity interacts with planets


C)
How magnetism reverses the fields of the poles


D)
How light interacts with gravity
Question 4 (5 points)

Listen
Which of the following is a measure of the amount of light a star directly emits?
Question 4 options:


A)
Luminosity


B)
Wavelength


C)
Brightness


D)
Intensity
Question 5 (5 points)

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Which scientist developed the theory of gravitation and used it to explain the orbits of celestial bodies?
Question 5 options:


A)
Galileo Galilae


B)
Isaac Newton


C)
Johannes Kepler


D)
Copernicus
Question 6 (5 points)

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Which of the following can be used to determine the composition of a star?
Question 6 options:


A)
The star's magnetic field


B)
Light from sunspots


C)
Line spectra


D)
Blackbody spectrum
Question 7 (5 points)

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What color would correspond with the peak wavelength of a star that has an extremely high temperature?
Question 7 options:


A)
Yellow


B)
Red


C)
Green


D)
Blue
Question 8 (5 points)

Listen
Which of the following is used to quantify the rate of universal expansion or contraction?
Question 8 options:


A)
Gravitational microlensing


B)
Cosmic microwave background radiation


C)
Cepheid variables


D)
Hubble's constant
Question 9 (5 points)

Listen
What's the name of the black hole region that creates the gravitational force holding the Milky Way together?
Question 9 options:


A)
Messier 32


B)
Fornax A*


C)
Sagittarius A


D)
Centarus A*
Question 10 (5 points)

Listen
What part of the Milky Way allows for determination of its rotational direction?
Question 10 options:


A)
Celestial body


B)
Two long tails


C)
Galactic body


D)
Galactic disk

Answer 1

Here are the answers:

1. B) It pulsates radially with a clear change in luminosity.
2. B) The moon is tidally locked to Earth.
3. D) How light interacts with gravity.
4. A) Luminosity.
5. B) Isaac Newton.
6. C) Line spectra.
7. D) Blue.
8. D) Hubble's constant.
9. C) Sagittarius A.
10. D) Galactic disk.