WorksheetsES.1 Essential Questions
Total questions: 5
Worksheet time: 10mins
Name
Class
Date
1.
What will happen to an object’s wavelength as the object moves toward you?
a)
The wavelength will be shortened.
b)
The wavelength will not change.
c)
The wavelength will vary.
d)
The wavelength will be lengthened.
2.
Based on the observed red shifts in the spectral lines of distant galaxies, astronomers conclude that ____.
a)
the universe is expanding
b)
the universe is smaller than once believed
c)
the universe is contracting
d)
Earth is in the center of the universe
3.
According to the big bang theory, the universe began about ____.
a)
13.8 billion years ago
b)
49.6 billion years ago
c)
130 billion years ago
d)
4.5 billion years ago
4.
What best describes cosmic background radiation?
a)
energy leftover from the Big Bang, found throughout the universe
b)
energy leftover from the Big Bang, found at edge of black holes
c)
energy of stars which brigthen and dim periodically
d)
energy given off by the sun
5.
What are the TWO most abundant elements in the universe as predicted by the Big Bang Theory?
a)
hydrogen & helium
b)
hydrogen & oxygen
c)
carbon & oxygen
d)
oxygen & nitrogen
100 %
