1. Compare the frequency of an X–ray with that of visible light: a) It is imposs

Question

1. Compare the frequency of an X–ray with that of visible light:

a) It is impossible to know how the frequencies differ.

b) The X–ray has a smaller frequency than visible light.

c) The answer depends on the specific color of the visible light.

d) The X–ray has a larger frequency than visible light.

e) All types of radiation have the same frequency.

2. A solar eclipse can occur:

a) during a quarter Moon only.

b) only during a new Moon.

c) during any phase of the Moon.

d) only during a full Moon.

e) during a new Moon or a full Moon.

3. How do the stars move over the course of a night (as they appear to us)?

a) from West to East

b) they circle the Sun

c) from East to West

d) parallel to the horizon from North to South

e) parallel to the horizon from South to North

4. Eclipses are rare because

a) they can only occur at sunrise or sunset

b) the Moon is usually too far away from the Earth

c) the Moon is usually too close to the Earth

d) the orbital planes of the Moon and of the Earth are the same

e) the orbital planes of the Moon and of the Earth are different

5. What Moon phase cannot be seen at midnight?

a) last quarter

b) first quarter

c) new

d) all types of phases can be seen at midnight

e) full

2

6. How long would one need to observe a star on a 10 meter telescope to collect the same

amount of light as one collects in one hour on a 5 meter telescope?

a) 30 minutes

b) 5 minutes

c) 2.5 hours

d) 15 minutes

e) 1 hour

7. If you view a hot star through a cool cloud of gas, what sort of spectrum will you see?

a) emission

b) absorption

c) continuous

d) No spectrum is visible.

e) water

8. A mountain top is a good location for optical and infrared telescopes because the site

a) is closer to astronomical objects

b) has cold weather which improves the performance of the instruments

c) is above much of the atmosphere

d) has warm weather which improves the performance of the instruments

e) has high altitude which expands the glass in the mirror and makes it smoother

9. How is the angular resolution of a telescope defined?

a) its ability to see as large an angle in the sky as possible

b) the distance between the telescope and the nearest body of water

c) its ability to see detail in an object

d) its ability to magnify an object

e) its light gathering power

10. If a planet with half the mass of Earth was in Earth’s orbit around the Sun, how would

the force between that planet and the Sun compare to the force between the Earth and

the Sun?

a) the force between the new planet and the Sun would be twice as much

b) the force between the new planet and the Sun would be a quarter as much

c) the force between the new planet and the Sun would be half as much

d) the force between the new planet and the Sun would be the same as the force between

Earth and the Sun

e) the force between the new planet and the Sun would be four times as much

3

11. Which one of the following is true?

a) Radio waves are higher frequency than ultraviolet radiation.

b) Ultraviolet radiation has a longer wavelength than red light.

c) Infrared radiation has a longer wavelength than blue light.

d) Blue light has longer wavelength than red light.

e) Radio waves are higher energy than gamma rays.

12. An emission line is produced when:

a) a proton passes from a lower to a higher energy level.

b) an electron passes from a higher to a lower energy level.

c) an electron passes from a lower to a higher energy level.

d) a proton passes from a higher to a lower energy level.

e) radiation passes through the outer layers of a star.

13. Which of the following is true?

a) More than one element can have the same emission or absorption spectrum.

b) The wavelengths of the emission lines produced by an element are different from the

wavelengths of the absorption lines produced by the same element.

c) An absorption spectrum appears as a continuous spectrum interrupted by a series of

dark lines.

d) An electron can have any energy within an atom, so long as that energy is above the

ground state energy.

e) Ultraviolet light has the shortest wavelength of any electromagnetic radiation.

14. Retrograde motion is:

a) proof of the geocentric theory of the solar system

b) the motion of the planets changing from east to west to west to east and back

c) not well understood by astronomers since it requires a geocentric universe

d) the motion of the Moon during a lunar eclipse

e) the circumpolar motion of the stars around the North star

15. What is emitted from an atom when one of its electrons makes a transition from a higher

energy state to a lower energy state?

a) neutron

b) proton

c) photon

d) electron

e) graviton

4

16. Radio waves can travel large distances without interference because:

a) they have high energies

b) they have a shorter wavelength than visible light

c) they have a longer wavelength than visible light

d) they travel at the speed of light

e) they travel slower than the speed of light

17. If the Earth’s North polar axis always tilted 23.5 degrees toward the Sun, but the Earth

was still rotating about this axis once each day:

a) the stars would never be visible from anywhere in the Northern hemisphere

b) it would always be summer in the Southern hemisphere

c) it would always be winter in the Southern hemisphere

d) the days would be longer in the Southern hemisphere

e) the stars would never be visible from anywhere in the Southern hemisphere

18. Day and night are due to:

a) the rotation of the Sun

b) the rotation of the Earth

c) the motion of the nine planets

d) the motion of the Earth around the Sun

e) the motion of the Moon around the Earth

19. What is the relationship between wavelength and frequency?

a) They are not related in any way.

b) It depends on the amplitude of the light.

c) If the wavelength increases the frequency increases.

d) The frequency of light is always zero.

e) If the frequency increases the wavelength decreases.

20. During a full Moon, where is the Moon relative to the Sun and the Earth?

a) at a 90 degree angle from the Sun

b) between the Sun and the Earth

c) at a 45 degree angle from the Sun

d) on the opposite side of the Earth from the Sun

e) on the opposite side of the Sun from the Earth

21. If the Moon is full on Jan. 10, when is the next time we will see a new moon?

a) Feb. 1

b) Feb. 10

c) Jan. 10 of the following year

d) Jan. 24

e) Jan. 17

5

22. When is the summer solstice in the Southern hemisphere?

a) around December 21

b) around August 21

c) around June 21

d) around March 21

e) around September 21

23. As compared to a cool star, a hotter star emits:

a) shorter wavelength, lower frequency, bluer color.

b) longer wavelength, higher frequency, bluer color.

c) shorter wavelength, higher frequency, redder color.

d) shorter wavelength, higher frequency, bluer color.

e) shorter wavelength, lower frequency, redder color.

24. The glowing embers of a fire are emitting most of their energy in the

a) gamma–ray

b) infrared

c) ultraviolet

d) radio

e) X-ray

25. The distance between two massive objects quadruples. By what factor is the gravitational

force between them changed?

a) one half

b) one third

c) one fourth

d) one sixteenth

e) one eight1. Compare the frequency of an X–ray with that of visible light:
a) It is impossible to know how the frequencies differ.
b) The X–ray has a smaller frequency than visible light.
c) The answer depends on the specific color of the visible light.
d) The X–ray has a larger frequency than visible light.
e) All types of radiation have the same frequency.
2. A solar eclipse can occur:
a) during a quarter Moon only.
b) only during a new Moon.
c) during any phase of the Moon.
d) only during a full Moon.
e) during a new Moon or a full Moon.
3. How do the stars move over the course of a night (as they appear to us)?
a) from West to East
b) they circle the Sun
c) from East to West
d) parallel to the horizon from North to South
e) parallel to the horizon from South to North
4. Eclipses are rare because
a) they can only occur at sunrise or sunset
b) the Moon is usually too far away from the Earth
c) the Moon is usually too close to the Earth
d) the orbital planes of the Moon and of the Earth are the same
e) the orbital planes of the Moon and of the Earth are different
5. What Moon phase cannot be seen at midnight?
a) last quarter
b) first quarter
c) new
d) all types of phases can be seen at midnight
e) full
2
6. How long would one need to observe a star on a 10 meter telescope to collect the same
amount of light as one collects in one hour on a 5 meter telescope?
a) 30 minutes
b) 5 minutes
c) 2.5 hours
d) 15 minutes
e) 1 hour
7. If you view a hot star through a cool cloud of gas, what sort of spectrum will you see?
a) emission
b) absorption
c) continuous
d) No spectrum is visible.
e) water
8. A mountain top is a good location for optical and infrared telescopes because the site
a) is closer to astronomical objects
b) has cold weather which improves the performance of the instruments
c) is above much of the atmosphere
d) has warm weather which improves the performance of the instruments
e) has high altitude which expands the glass in the mirror and makes it smoother
9. How is the angular resolution of a telescope defined?
a) its ability to see as large an angle in the sky as possible
b) the distance between the telescope and the nearest body of water
c) its ability to see detail in an object
d) its ability to magnify an object
e) its light gathering power
10. If a planet with half the mass of Earth was in Earth’s orbit around the Sun, how would
the force between that planet and the Sun compare to the force between the Earth and
the Sun?
a) the force between the new planet and the Sun would be twice as much
b) the force between the new planet and the Sun would be a quarter as much
c) the force between the new planet and the Sun would be half as much
d) the force between the new planet and the Sun would be the same as the force between
Earth and the Sun
e) the force between the new planet and the Sun would be four times as much
3
11. Which one of the following is true?
a) Radio waves are higher frequency than ultraviolet radiation.
b) Ultraviolet radiation has a longer wavelength than red light.
c) Infrared radiation has a longer wavelength than blue light.
d) Blue light has longer wavelength than red light.
e) Radio waves are higher energy than gamma rays.
12. An emission line is produced when:
a) a proton passes from a lower to a higher energy level.
b) an electron passes from a higher to a lower energy level.
c) an electron passes from a lower to a higher energy level.
d) a proton passes from a higher to a lower energy level.
e) radiation passes through the outer layers of a star.
13. Which of the following is true?
a) More than one element can have the same emission or absorption spectrum.
b) The wavelengths of the emission lines produced by an element are different from the
wavelengths of the absorption lines produced by the same element.
c) An absorption spectrum appears as a continuous spectrum interrupted by a series of
dark lines.
d) An electron can have any energy within an atom, so long as that energy is above the
ground state energy.
e) Ultraviolet light has the shortest wavelength of any electromagnetic radiation.
14. Retrograde motion is:
a) proof of the geocentric theory of the solar system
b) the motion of the planets changing from east to west to west to east and back
c) not well understood by astronomers since it requires a geocentric universe
d) the motion of the Moon during a lunar eclipse
e) the circumpolar motion of the stars around the North star
15. What is emitted from an atom when one of its electrons makes a transition from a higher
energy state to a lower energy state?
a) neutron
b) proton
c) photon
d) electron
e) graviton
4
16. Radio waves can travel large distances without interference because:
a) they have high energies
b) they have a shorter wavelength than visible light
c) they have a longer wavelength than visible light
d) they travel at the speed of light
e) they travel slower than the speed of light
17. If the Earth’s North polar axis always tilted 23.5 degrees toward the Sun, but the Earth
was still rotating about this axis once each day:
a) the stars would never be visible from anywhere in the Northern hemisphere
b) it would always be summer in the Southern hemisphere
c) it would always be winter in the Southern hemisphere
d) the days would be longer in the Southern hemisphere
e) the stars would never be visible from anywhere in the Southern hemisphere
18. Day and night are due to:
a) the rotation of the Sun
b) the rotation of the Earth
c) the motion of the nine planets
d) the motion of the Earth around the Sun
e) the motion of the Moon around the Earth
19. What is the relationship between wavelength and frequency?
a) They are not related in any way.
b) It depends on the amplitude of the light.
c) If the wavelength increases the frequency increases.
d) The frequency of light is always zero.
e) If the frequency increases the wavelength decreases.
20. During a full Moon, where is the Moon relative to the Sun and the Earth?
a) at a 90 degree angle from the Sun
b) between the Sun and the Earth
c) at a 45 degree angle from the Sun
d) on the opposite side of the Earth from the Sun
e) on the opposite side of the Sun from the Earth
21. If the Moon is full on Jan. 10, when is the next time we will see a new moon?
a) Feb. 1
b) Feb. 10
c) Jan. 10 of the following year
d) Jan. 24
e) Jan. 17
5
22. When is the summer solstice in the Southern hemisphere?
a) around December 21
b) around August 21
c) around June 21
d) around March 21
e) around September 21
23. As compared to a cool star, a hotter star emits:
a) shorter wavelength, lower frequency, bluer color.
b) longer wavelength, higher frequency, bluer color.
c) shorter wavelength, higher frequency, redder color.
d) shorter wavelength, higher frequency, bluer color.
e) shorter wavelength, lower frequency, redder color.
24. The glowing embers of a fire are emitting most of their energy in the
a) gamma–ray
b) infrared
c) ultraviolet
d) radio
e) X-ray
25. The distance between two massive objects quadruples. By what factor is the gravitational
force between them changed?
a) one half
b) one third
c) one fourth
d) one sixteenth
e) one eight

1. Compare the frequency of an X–ray with that of visible light:
a) It is impossible to know how the frequencies differ.
b) The X–ray has a smaller frequency than visible light.
c) The answer depends on the specific color of the visible light.
d) The X–ray has a larger frequency than visible light.
e) All types of radiation have the same frequency.
2. A solar eclipse can occur:
a) during a quarter Moon only.
b) only during a new Moon.
c) during any phase of the Moon.
d) only during a full Moon.
e) during a new Moon or a full Moon.
3. How do the stars move over the course of a night (as they appear to us)?
a) from West to East
b) they circle the Sun
c) from East to West
d) parallel to the horizon from North to South
e) parallel to the horizon from South to North
4. Eclipses are rare because
a) they can only occur at sunrise or sunset
b) the Moon is usually too far away from the Earth
c) the Moon is usually too close to the Earth
d) the orbital planes of the Moon and of the Earth are the same
e) the orbital planes of the Moon and of the Earth are different
5. What Moon phase cannot be seen at midnight?
a) last quarter
b) first quarter
c) new
d) all types of phases can be seen at midnight
e) full
2
6. How long would one need to observe a star on a 10 meter telescope to collect the same
amount of light as one collects in one hour on a 5 meter telescope?
a) 30 minutes
b) 5 minutes
c) 2.5 hours
d) 15 minutes
e) 1 hour
7. If you view a hot star through a cool cloud of gas, what sort of spectrum will you see?
a) emission
b) absorption
c) continuous
d) No spectrum is visible.
e) water
8. A mountain top is a good location for optical and infrared telescopes because the site
a) is closer to astronomical objects
b) has cold weather which improves the performance of the instruments
c) is above much of the atmosphere
d) has warm weather which improves the performance of the instruments
e) has high altitude which expands the glass in the mirror and makes it smoother
9. How is the angular resolution of a telescope defined?
a) its ability to see as large an angle in the sky as possible
b) the distance between the telescope and the nearest body of water
c) its ability to see detail in an object
d) its ability to magnify an object
e) its light gathering power
10. If a planet with half the mass of Earth was in Earth’s orbit around the Sun, how would
the force between that planet and the Sun compare to the force between the Earth and
the Sun?
a) the force between the new planet and the Sun would be twice as much
b) the force between the new planet and the Sun would be a quarter as much
c) the force between the new planet and the Sun would be half as much
d) the force between the new planet and the Sun would be the same as the force between
Earth and the Sun
e) the force between the new planet and the Sun would be four times as much
3
11. Which one of the following is true?
a) Radio waves are higher frequency than ultraviolet radiation.
b) Ultraviolet radiation has a longer wavelength than red light.
c) Infrared radiation has a longer wavelength than blue light.
d) Blue light has longer wavelength than red light.
e) Radio waves are higher energy than gamma rays.
12. An emission line is produced when:
a) a proton passes from a lower to a higher energy level.
b) an electron passes from a higher to a lower energy level.
c) an electron passes from a lower to a higher energy level.
d) a proton passes from a higher to a lower energy level.
e) radiation passes through the outer layers of a star.
13. Which of the following is true?
a) More than one element can have the same emission or absorption spectrum.
b) The wavelengths of the emission lines produced by an element are different from the
wavelengths of the absorption lines produced by the same element.
c) An absorption spectrum appears as a continuous spectrum interrupted by a series of
dark lines.
d) An electron can have any energy within an atom, so long as that energy is above the
ground state energy.
e) Ultraviolet light has the shortest wavelength of any electromagnetic radiation.
14. Retrograde motion is:
a) proof of the geocentric theory of the solar system
b) the motion of the planets changing from east to west to west to east and back
c) not well understood by astronomers since it requires a geocentric universe
d) the motion of the Moon during a lunar eclipse
e) the circumpolar motion of the stars around the North star
15. What is emitted from an atom when one of its electrons makes a transition from a higher
energy state to a lower energy state?
a) neutron
b) proton
c) photon
d) electron
e) graviton
4
16. Radio waves can travel large distances without interference because:
a) they have high energies
b) they have a shorter wavelength than visible light
c) they have a longer wavelength than visible light
d) they travel at the speed of light
e) they travel slower than the speed of light
17. If the Earth’s North polar axis always tilted 23.5 degrees toward the Sun, but the Earth
was still rotating about this axis once each day:
a) the stars would never be visible from anywhere in the Northern hemisphere
b) it would always be summer in the Southern hemisphere
c) it would always be winter in the Southern hemisphere
d) the days would be longer in the Southern hemisphere
e) the stars would never be visible from anywhere in the Southern hemisphere
18. Day and night are due to:
a) the rotation of the Sun
b) the rotation of the Earth
c) the motion of the nine planets
d) the motion of the Earth around the Sun
e) the motion of the Moon around the Earth
19. What is the relationship between wavelength and frequency?
a) They are not related in any way.
b) It depends on the amplitude of the light.
c) If the wavelength increases the frequency increases.
d) The frequency of light is always zero.
e) If the frequency increases the wavelength decreases.
20. During a full Moon, where is the Moon relative to the Sun and the Earth?
a) at a 90 degree angle from the Sun
b) between the Sun and the Earth
c) at a 45 degree angle from the Sun
d) on the opposite side of the Earth from the Sun
e) on the opposite side of the Sun from the Earth
21. If the Moon is full on Jan. 10, when is the next time we will see a new moon?
a) Feb. 1
b) Feb. 10
c) Jan. 10 of the following year
d) Jan. 24
e) Jan. 17
5
22. When is the summer solstice in the Southern hemisphere?
a) around December 21
b) around August 21
c) around June 21
d) around March 21
e) around September 21
23. As compared to a cool star, a hotter star emits:
a) shorter wavelength, lower frequency, bluer color.
b) longer wavelength, higher frequency, bluer color.
c) shorter wavelength, higher frequency, redder color.
d) shorter wavelength, higher frequency, bluer color.
e) shorter wavelength, lower frequency, redder color.
24. The glowing embers of a fire are emitting most of their energy in the
a) gamma–ray
b) infrared
c) ultraviolet
d) radio
e) X-ray
25. The distance between two massive objects quadruples. By what factor is the gravitational
force between them changed?
a) one half
b) one third
c) one fourth
d) one sixteenth
e) one eight

Explanation / Answer

Answer for question no.1

Answer is

d) The X–ray has a larger frequency than visible light.

X-rays are invisible.

X-ray has much shorter wave length than visible light.

X- ray has high frequency than visible light.

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