ASTRO 1 Exam
Compared to UV radiation, X-rays have a wavelength that is
ANSWER shorter
The North star is a star in the constellation of Ursa Minor, which lies just above the North pole
of Earth. Which of the following is false?
ANSWER Ursa Minor is a zodiac constellation
If you are standing on the street listening to the siren of an ambulance as it is moving away
from you, which of the following is true?
ANSWER the pitch/frequency of the siren seems lower than it really is
What time of year is it dark all day (and night) at the equator?
ANSWER never
If I can fire a cannonball from the top of a mountain, traveling parallel to the Earth's surface at
14,000 mph, it travels a great distance before falling to Earth. If instead, I fire at 16,000 mph it:
ANSWER travels completely around the Earth before returning to the mountaintop
If the mass of the Sun were doubled, how would the force between the Sun and Earth change?
ANSWER it would double
What season is it in Sydney, Australia in August?
ANSWER winter
How do we know that interstellar gas clouds contain Oxygen?
ANSWER They give off emission line spectra that have lines with the same wavelength as
Oxygen does on Earth
, How can you observe a retrograde loop of Mars?
ANSWER Over the course of a few months, the planet will appear to change directions with
respect to the stars
T/F An absorption spectrum appears as a continuos spectrum interrupted by a series of dark
lines
ANSWER True
T/F The wavelengths of the emission lines produced by an element are the same as the
wavelenghts of an absorption line produced by the same element
ANSWER True
T/F Light, radio, UV and gamma rays are all forms of electromagnetic radiation
ANSWER True
T/F Emission spectra are characterized by narrow, bright lines of different colors
ANSWER True
T/F The enerfy of a photon increases in proportion to the wavelength of the radiation
ANSWER False
When is the best time for you to be able to see the constellation that is your sign of the Zodiac?
ANSWER At midnight six months after your birthday
How many Zodiac constellations are there?
ANSWER 12
Compared to UV radiation, X-rays have a wavelength that is
ANSWER shorter
The North star is a star in the constellation of Ursa Minor, which lies just above the North pole
of Earth. Which of the following is false?
ANSWER Ursa Minor is a zodiac constellation
If you are standing on the street listening to the siren of an ambulance as it is moving away
from you, which of the following is true?
ANSWER the pitch/frequency of the siren seems lower than it really is
What time of year is it dark all day (and night) at the equator?
ANSWER never
If I can fire a cannonball from the top of a mountain, traveling parallel to the Earth's surface at
14,000 mph, it travels a great distance before falling to Earth. If instead, I fire at 16,000 mph it:
ANSWER travels completely around the Earth before returning to the mountaintop
If the mass of the Sun were doubled, how would the force between the Sun and Earth change?
ANSWER it would double
What season is it in Sydney, Australia in August?
ANSWER winter
How do we know that interstellar gas clouds contain Oxygen?
ANSWER They give off emission line spectra that have lines with the same wavelength as
Oxygen does on Earth
, How can you observe a retrograde loop of Mars?
ANSWER Over the course of a few months, the planet will appear to change directions with
respect to the stars
T/F An absorption spectrum appears as a continuos spectrum interrupted by a series of dark
lines
ANSWER True
T/F The wavelengths of the emission lines produced by an element are the same as the
wavelenghts of an absorption line produced by the same element
ANSWER True
T/F Light, radio, UV and gamma rays are all forms of electromagnetic radiation
ANSWER True
T/F Emission spectra are characterized by narrow, bright lines of different colors
ANSWER True
T/F The enerfy of a photon increases in proportion to the wavelength of the radiation
ANSWER False
When is the best time for you to be able to see the constellation that is your sign of the Zodiac?
ANSWER At midnight six months after your birthday
How many Zodiac constellations are there?
ANSWER 12
