Lesson 1 astronamy Flashcards
1
Q
Astronomy
A
The study of the universe.
2
Q
month
A
A division of the year that is based o the orbit of the moon around the Earth.
3
Q
year
A
The time required for the earth to orbit once around the sun.
4
Q
day
A
the time required for Earth to rotate once around its axis..
5
Q
Telescope
A
An instrument that collects electromagnetic Radiation from the sky and concentrates.
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 a curved a mirror to gather and focus light from distant objects.
8
Q
Electromagnetic Spectrum
A
All of the frequencies of wavelengths of electromagnetic radiation.
