6th grade astronomy Flashcards
1
Q
astronomy
A
the study of universe
2
Q
month
A
a division of the year that is based on the orbit of the moon around the earth
3
Q
year
A
the time required for earth to orbit once around the sun
4
Q
day
A
the time required for earth to rotate once on its axis
5
Q
telescope
A
an instrument that collects electromagnetic radiation from the sky and concentrates it for better observations
6
Q
refracting telescope
A
a telescope that uses a set of lenses to gather and focus light from distant objects
7
Q
reflecting telescope
A
a telescope that uses curved mirror to gather and focus light from distant objects
8
Q
electromagnetic spectrum
A
all of the frequencies or wavelengths of electromagnetic radiation.
