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WorksheetsSpace Systems Part 3
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
One of the two fixed points of an ellipse that are used to trace the curve of the ellipse-they are the focal points
a)
Ellipse
b)
Focus
c)
Orbit
d)
Eccentricity
2.
The path of an object that seems to go around and around another object in space.
a)
Orbit
b)
Acceleration
c)
Ellipse
d)
Eccentricity
3.
An attractive force that pulls objects that have mass towards each other-the Earth pulls on us with it.
a)
Force
b)
Acceleration
c)
Gravity
d)
Orbit
4.
A change in speed - either increasing or decreasing.
a)
Force
b)
Acceleration
c)
Gravity
d)
Orbit
5.
An oval that is traced around 2 center points - making it longer or more oblong than other ovals
a)
Eccentricity
b)
Orbit
c)
Focus
d)
Ellipse
6.
The measurement of an oval that shows how far off it is from being a perfect circle.
a)
Ellipse
b)
Eccentricity
c)
Focus
d)
Lightyear
7.
The distance light can travel in 365 days
a)
Orbit
b)
Acceleration
c)
Lightyear
d)
Force
8.
A push or pull that can change the motion of an object
a)
Force
b)
Gravity
c)
Acceleration
d)
Orbit
9.
a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.
a)
Lightyear
b)
Orbit
c)
Force
d)
Astronomical Unit (AU)
10.
What governs the motion of satellites, moons, planets, solar systems and galaxies?
a)
Laws of Motion
b)
Theory of Relativity
c)
Big Bang Theory
d)
Butterfly Theory
11.
Kepler's Laws of Planetary Motion were developed by
a)
data that Kepler stole from other scientists
b)
scientists other than Kepler
c)
significant amounts of observational data
d)
dumb luck
12.
The Orbit of planets, comets, moons, and satellites are
a)
a perfect circle
b)
elliptical
c)
square
d)
flat
13.
The closer an orbiting body is to a star,
a)
the smaller its orbital velocity will be
b)
the more likely it will crash into the star
c)
the more likely it will fling away from the star
d)
the larger its orbital velocity will be
14.
When objects are accelerating they change
a)
speed only
b)
direction only
c)
speed, direction, or both
d)
slow down
15.
Unbalanced forces cause
a)
deceleration
b)
objects to stop
c)
objects to speed up
d)
acceleration
16.
The path of the planets about the sun is elliptical in shape, with the center of the sun being located at one focus is which Law of Planetary Motion
a)
The Law of Equal Areas
b)
The Law of Harmonies
c)
The Law of Ellipses
17.
An imaginary line drawn from the center of the sun to the center of the planet will sweep out equal areas in equal intervals of time.
a)
The Law of Equal Areas
b)
The Law of Harmonies
c)
The Law of Ellipses
18.
An imaginary line drawn from the center of the sun to the center of the planet will sweep out equal areas in equal intervals of time is which Law of Planetary Motion
a)
The Law of Equal Areas
b)
The Law of Harmonies
c)
The Law of Ellipses
19.
The ratio of the squares of the periods of any two planets is equal to the ratio of the cubes of their average distances from the sun is which Law of Planetary Motion
a)
The Law of Equal Areas
b)
The Law of Harmonies
c)
The Law of Ellipses
20.
a property of a physical body. It is the measure of an object's resistance to acceleration (a change in its state of motion) when a net force is applied. It also determines the strength of its mutual gravitational attraction to other bodies.
a)
Orbit
b)
Acceleration
c)
Force
d)
Mass
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