Chat with us, powered by LiveChat The Scientific Method Choose the correct answer relies on authority or the opinion of experts. relies on data that agrees with our theories. relies on tradition and consensus opinions. | WriteDen

## 25 Jan The Scientific Method Choose the correct answer relies on authority or the opinion of experts. relies on data that agrees with our theories. relies on tradition and consensus opinions.

1. The Scientific Method
relies on authority or the opinion of experts.
relies on data that agrees with our theories.
relies on tradition and consensus opinions.
relies on the oldest data and majority opinion.
uses data and tests hypothesis
2. What is the name astronomers give to planets that orbit around stars other than the Sun?
Extraterrestrial Planets
Exoplanets
Super Planets
Alien Worlds
3. On interplanetary scales in the solar system, we use what unit of distance
the light hour (lh), the distance traveled by light in one hour.
the Astronomical Unit (AU) based on the average Earth-Sun distance.
the Astronomical Meter (AM) based on the light travel time from the Earth to the Moon.
the astrometer (am) based on the size of the orbit of Jupiter.
4. The distance to nearest star to the Sun is
a few light years.
Several hundred times the Earth-Moon distance.
Several hundred times the Earth-Sun distance.
a few Astronomical Units.
5. A megayear is
1 billion years
A very long year
1 thousand years
1 million years
6. A television ad claiming that a product is “light-years ahead of its time” does not make sense for what reason?
Light-years are a measure of velocity, not time.
Light-years are a measure of distance, not time.
Light-years only measure time for light, not objects.
It should say, “light-years behind its time”, not “ahead”.
7. The speed of light:
Is the largest possible speed
Cannot be measured
Is 300 km/s
Is 3 billion km/s
8. The most mass in the Solar system is in
In the asteroid belt
In the trillions of comets in the Oort cloud
The Sun
In all the planets combined
9. True or False: All the planets, the asteroids in the asteroid belt, the objects in the Kuiper belt, all orbit the Sun in the same plane.
a. True
d. False
10. What is parallax?
a. Change in the position of stars
b. Change in the speed of stars
c. Apparent shift in the position of an object because of the change in the position of an observer
d. None of the above
11. How is parallax related to distance?
Larger the distance, larger the parallax.
Larger the distance, smaller the parallax.
Parallax is not related to distance
12. How do we measure distance to nearby stars?
By measuring parallax and using laws of geometry
We cannot measure distances to stars
Using standard candles
13. What are standard candles?
Most luminous candles
Most common candles
Objects with known luminosity
White candles
14. How do we know distances to nearby galaxies?
We cannot measure distances to galaxies
Using supernovae as standard candles
By measuring parallax and using laws of geometry
15. Which of the following is (are) a standard candle(s)?
Supernova
Planet
All the other answers are correct.
Star

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