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WorksheetsNebular Theory & Kepler Review
Total questions: 16
Worksheet time: 14mins
Name
Class
Date
1.
The theory that explains the formation of the solar system is called ____.
a)
Nebulis Theory
b)
Nebular Theory
c)
Big Bang Theory
d)
Big Nebulan Theory
2.
How much of the nebula matter became the Sun?
a)
33%
b)
66%
c)
99%
d)
77%
3.
What caused the nebula to collapse and start spinning?
a)
Supernova
b)
Asteroid collision
c)
Big Bang
d)
Nearby star exploded
4.
How long ago did the solar system begin to form?
a)
5 billion years ago
b)
50 million years ago
c)
5 million years ago
d)
50 billion years ago
5.
What is the period of rotation?
a)
How long it takes a planet to orbit the sun
b)
How fast a planet orbits the sun
c)
How fast a planet spins
d)
How elliptical a planet's orbit is
6.
What is the period of revolution?
a)
How long it takes a planet to orbit the sun
b)
How long it takes a planet to spin around
c)
How fast a planet spins
d)
How elliptical a planet's orbit is
7.
What would happen if the Earth's inertia "quit working"?
a)
We would float off into space
b)
Sun's gravity would push us into space
c)
We would smash into Mars
d)
Sun's gravity would pull us in to it
8.
Which two forces keep the planets in orbit around the sun?
a)
inertia & momentum
b)
gravity & inertia
c)
inertia & velocity
d)
gravity & velocity
9.
When a planet is closest to the sun in it's orbit, it is called ____.
a)
perihelion
b)
aphelion
c)
parahelical
d)
aphahelical
10.
What is the shape of a planet's orbit?
a)
circular
b)
elliptical
c)
spherical
d)
round
11.
Planets move in elliptical orbits is Kepler's _____ Law.
a)
1st
b)
2nd
c)
3rd
d)
4th
12.
Planets that are farther from the sun have larger orbits is Kepler's ___ Law.
a)
1st
b)
2nd
c)
3rd
d)
4th
13.
Line drawn from the sun to planet sweeps out equal areas in equal time is Kepler's _____ Law.
a)
1st
b)
2nd
c)
3rd
d)
4th
14.
If a planet is closer to the sun, its orbit will be _____ than one farther away.
a)
longer
b)
slower
c)
bigger
d)
shorter
15.
The average distance between the Earth and the sun is a(n) ____.
a)
light year
b)
light minute
c)
astronomical year
d)
astronomical unit
16.
Kepler's 2nd Law states that a planet's velocity is ____ when farther from the sun.
a)
fastest
b)
slowest
c)
unchanged
d)
the same
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