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WorksheetsKepler's laws
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Planets orbit the Sun in a shape called a(n)
a)
circle
b)
ellipse
c)
focus
d)
perihelion
2.
An ellipse is drawn around two points called
a)
aphelion
b)
perihelion
c)
foci
d)
axis
3.
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
4.
The place where a planet is closest to the Sun as it orbits the Sun is called the
a)
perihelion
b)
aphelion
5.
The place where a planet is farthest away from the Sun in its orbit around the Sun is called the
a)
aphelion
b)
perihelion
6.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
7.
What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?
a)
The area between A, B and the Sun is the largest.
b)
The area between H, I and the Sun is the largest
c)
Both areas are equal in size
d)
There is not enough information to determine the areas
8.
What has an eccentricity of zero
a)
a straight line
b)
a large ellipse
c)
a circle
d)
a small ellipse
9.
Kepler's 2nd Law deals with
a)
the shape of the planets' orbits
b)
the speed/area the planet travels
c)
the length of time it takes the planet to orbit the sun
10.
The "Law of Harmonies" is which of Kepler's Laws?
a)
1st
b)
2nd
c)
3rd
d)
4th
11.
A planet moves __________ when it is farthest from the sun.
a)
faster
b)
slower
12.
The farther away a planet is from the sun, the _______ it takes it to orbit the sun once.
a)
longer
b)
shorter
13.
The path a planet travels around the sun is called its
a)
orbit
b)
ellipse
c)
barycenter
d)
precession
14.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance
b)
mass and matter
c)
distance and weight
d)
weight and mass
15.
Who created the Universal Law of Gravitation?
a)
Copernicus
b)
Newton
c)
Kepler
d)
Galileo
16.
Double the product of the masses of two objects
a)
4 times stronger gravity force
b)
4 times weaker gravity force
c)
2 times weaker gravity force
d)
2 times stronger gravity force
17.
Double the distance between two objects
a)
4 times greater gravity attraction
b)
4 times weaker gravity attraction
c)
2 times weaker gravity
d)
2 times greater gravity
18.
Complete the following statement: The farther away two planets are the _______ the gravitational force between them.
a)
greater
b)
same
c)
zero
d)
less
19.
In this equation...
a)
G is the gravitational field strength
b)
r is the distance between the centers of the 2 masses
c)
F is the repulsive gravitational force
d)
m is the momentum of the mass
20.
Why do astronauts in space appear weightless?
a)
There is no gravity in space.
b)
Air resistance opposes gravity.
c)
They have no mass in space.
d)
They are in free fall.
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