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WorksheetsEccentricity
Total questions: 21
Worksheet time: 22mins
Name
Class
Date
1.
A perfect circle has an eccentricity of ______.
a)
0
b)
.99
c)
1
d)
2
2.
The flattest ellipse before it becomes a line will have an eccentricity of _______.
a)
0
b)
.99
c)
1
d)
2
3.
The period of the earth's orbit around the sun is ____.
a)
1 day
b)
1 year
c)
24 hours
d)
364 hours
4.
Which planet has an orbital eccentricity most like the orbital eccentricity of the Moon?
a)
Earth
b)
Saturn
c)
Mars
d)
Mercury
5.
The gravitational attraction between the star and the planet will be greatest at position
a)
A
b)
B
c)
C
d)
D
6.
The length of an Earth day is determined by the time required for approximately one
a)
Earth rotation
b)
Earth revolution
c)
Sun rotation
d)
Sun revolution
7.
Which planet takes more time to complete one rotation on its axis than to complete one revolution around the Sun?
a)
Mercury
b)
Venus
c)
Mars
d)
Jupiter
8.
Which list shows four planets of the solar system in order from smallest to largest?
a)
Jupiter, Saturn, Uranus, Neptune
b)
Neptune, Uranus, Saturn, Jupiter
c)
Saturn, Jupiter, Neptune, Uranus
d)
Uranus, Neptune, Saturn, Jupiter
9.
Which diagram shows a planet with the least eccentric orbit?
a)
1
b)
2
c)
3
d)
4
10.
What is the maximum eccentricity an ellipse can be?
a)
0
b)
.5
c)
1
d)
42
11.
Calculate the eccentricity for the following orbit.
a)
1.6
b)
0.8
c)
0.6
d)
1.2
12.
If an orbit has an eccentricity value of "0", what shape is it?
a)
perfectly circular
b)
perfectly flat
c)
very oval/elliptical
d)
slightly oval/elliptical
13.
Which orbit is most eccentric?
a)
1
b)
3
c)
4
d)
5
14.
What is eccentricity?
a)
a measurement of how elliptical an orbit is.
b)
a measurement of the distance between the planet and the sun
c)
a measurement of how long the planet takes to rotate around the sun
d)
none of these
15.
What shape are the orbits of all planets in our solar system?
a)
circular
b)
cylindrical
c)
elliptical
d)
none of these
16.
During which month is the earth moving the slowest?
a)
July
b)
March
c)
January
d)
September
17.
During what month is the earth moving the fastest around the sun?
a)
July
b)
March
c)
January
d)
September
18.
An ellipse is drawn around two points called
a)
aphelion
b)
perihelion
c)
foci
d)
axis
19.
When a planet orbits the Sun, one of the foci of the elliptical orbit is
a)
the axis
b)
the perihelion
c)
the center
d)
the Sun
20.
The place where a planet is closest to the Sun as it orbits the Sun is called the
a)
perihelion
b)
aphelion
21.
The place where a planet is farthest away from the Sun in its orbit around the Sun is called the
a)
aphelion
b)
perihelion
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