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WorksheetsUnit 3 Test Review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
According to Kepler, the sun is located...
a)
At the center of the ellipse
b)
On one of the foci of the orbit
c)
On the semi-minor axis
d)
In the sky
2.
If the Earth were farther from the sun than it is now, 1 year would be...
a)
Still 365 days
b)
Less than 365 days
c)
More than 365 days
d)
Twice as long as it is now
3.
Which planet has the most eccentric orbit?
a)
Earth
b)
Venus
c)
Saturn
d)
Pluto
4.
When a planet is orbiting the sun, the direction of acceleration of the planet is always...
a)
Pointing away from the sun
b)
Pointing towards the sun
c)
Pointing towards the moon
d)
The same as the curved orbit path
5.
Gravitational force on an object will ____________ if the object moves farther away
a)
Increase
b)
Decrease
c)
Disappear
d)
Not Change
6.
Which has the highest eccentricity?
a)
Frisbee
b)
Softball
c)
Egg
d)
Hot Dog
7.
What is the eccentricity of a circle?
a)
2.5
b)
It depends on how big the circle is
c)
0
d)
1
8.
Kepler's 2nd Law:
a)
Planets slow down near the sun
b)
Planets move fastest near the sun
c)
The perihelion is the farthest point from the sun
d)
Pluto IS a planet
9.
Two objects move towards each other due to gravity. As they get closer, the force of attraction between them...
a)
Increases
b)
Decreases
c)
Stays consistent
d)
Disappears
10.
The speed of a satellite in elliptical orbit...
a)
Is slowest at perihelion
b)
Is slowest at aphelion
c)
Is always the same
d)
Can't be determined
11.
The speed of a satellite in a circular orbit...
a)
Is always changing
b)
Is always the same
c)
Is not predictable
d)
Can't be determined
12.
Which of theses planets has the largest revolution period?
a)
Mercury
b)
Mars
c)
Neptune
d)
Jupiter
13.
The force of attraction between all objects in the universe is called...
a)
Friction
b)
Inertia
c)
Momentum
d)
Gravitation
14.
Some stars collapse into a region of very high density and gravity so strong that not even light can escape. These are called...
a)
Neutron Stars
b)
White Dwarves
c)
Red Giants
d)
Black Holes
15.
Which number represents the gravitational constant (G)?
a)
6.67 x 10-11
b)
6.67 x 1011
c)
6.022 x 1023
d)
3.14
16.
What is the perihelion?
a)
Point on the orbit that is closest to the sun
b)
Poin on the orbit that is farthest from the sun
c)
The middle of the orbit
d)
The point where the planet moves slowest
17.
What is the aphelion?
a)
Point on the orbit that is closest to the sun
b)
Point on the orbit that is farthest from the sun
c)
Center of the orbit
d)
Point where the planet moves fastest
18.
What is an Astronomical Unit?
a)
The distance between Venus and the Sun
b)
1 light year
c)
The distance between Earth and the Sun
d)
The distance between Earth and the Moon
19.
If the sun's mass doubled, how would the gravitational pull on Earth change?
a)
It would decrease
b)
It would double
c)
It would triple
d)
It would be half
20.
Gravitational Waves were produced when...
a)
2 black holes were formed
b)
2 black holes collided
c)
A large star exploded
d)
Mr. Bernhard sat down
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