WorksheetsGalaxy Classification and Hubble's Law
Total questions: 10
Worksheet time: 12mins
Name
Class
Date
1.
The universe is ________________.
a)
expanding
b)
staying constant
c)
shrinking
d)
exploding
2.
What is the formula for Hubble's Law?
a)
V=H x d
b)
H= V x d
c)
d= H x V
d)
H= d/V
3.
What is on the y-axis in the Hubble's Law graph?
a)
Recessional velocity
b)
Distance
c)
Hubble's constant
d)
Proportionality constant
4.
What is on the x-axis in the Hubble's Law graph?
a)
Recessional velocity
b)
Distance
c)
Hubble's constant
d)
Proportionality constant
5.
Where do you find H in the Hubble's Law graph?
a)
y-intercept
b)
x-intercept
c)
slope
d)
at the galaxy
6.
What are the standard units for Hubble's constant?
a)
km/s
b)
seconds (or years)
c)
Mpc/km/s
d)
km/s/Mpc
7.
What is recessional velocity
a)
Red-shift
b)
Hubble time
c)
The relative distance to the galaxy
d)
Speed that galaxies are moving away
8.
How is the Hubble constant used to find the age of the universe?
a)
age = v ÷ d x H
b)
age = 1/H
c)
age = H
d)
age = H x d
9.
T or F: There are many different methods to measure distance and this causes error in calculating the Hubble constant
a)
True
b)
False
10.
What is the current accepted age of the universe according to many Big Bang cosmologists?
a)
2 billion years
b)
20.1 billion years
c)
13.8 billion years
d)
75 billion years
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