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WorksheetsSpace Unit Review
Total questions: 38
Worksheet time: 29mins
What seperates our inner planets from our outer planets?
Our sun.
A nebula.
An asteroid belt
A meteor belt.
True or False. Outer planets are closer to the sun.
True.
False.
True or False. Outer planets have a slower orbital speed because they are farther away from the sun.
True.
False.
The two factors that determine gravity are:
Speed and mass.
Mass and weight.
Weight and distance.
Mass and distance.
When a piece of an asteroid or a comet breaks off and is still in place, it is called a ___.
Meteor
Meteorite
Meteroid
Dwarf Planet.
When a meteroid enters a planet's atmosphere and starts to burn up, it is called a ___.
Meteorite
Meteor
Dwarf Planet
Meteoride
When a meteor strikes the surface of a planet, it is called a ___.
Meteorite.
Dwarf Planet.
Meteor.
Meteoroid.
Which of the following space bodies glows when it orbits near the sun?
Asteroid
Comet
Meteoroid
Meteorite
What do you call a space body, which has a round shape, is NOT a satellite of any object other than the sun, and has NOT cleared its neighborhood.
A planet.
An asteroid.
A dwarf planet.
A meteoroid.
True or False. Gravity affects all objects in our solar system.
True.
False.
True or False. Gravity only exist between the Earth and the Sun.
True.
False.
What do both inner planets and outer planets have in common?
They have rocky solid surfaces.
They're both made out of gas.
They have no atmosphere.
They're held in orbit by the Sun's gravity.
The picture represents a model of the motion in our solar system. If the ball represents the Earth and the person our sun, what does the string represent?
Mass
Weight
Gravity
Orbital Speed
Which diagram represents a weaker gravitational force between the sun and the planet.
Which diagram represents a stronger gravitational force between the sun and the planet.
Objects A and B are located at the same distance from the sun.
True or False. The gravitational force between the Sun and object A is greater than between the sun and object B because object A is less massive than object B.
True.
False.
Objects A and B are located at the same distance from the sun.
True or False. The gravitational force between the Sun and object B is less than between the sun and object A because object B is less massive than object A.
True
False
True or False. Crewed missions do NOT have astronauts on board the spacecraft.
True
False
True or False. Uncrewed missions do not have any astronauts on board the spacecraft.
True
False
What are some reasons for which uncrewed missions are sometimes used in space travel? (You may select all that apply)
When the risk is to great for human life.
When the mission is too long for humans.
When the mission is too far for humans.
When the mission does not requiere astronauts
What is another name for Inner Planets?
Solid Ones.
Terrestrial Planets.
Gas Giants.
Earth-Type Planets
What is another name for Outer Planets?
Solid Ones
Terrestrial Planets
Gas Giants
Earth-Type Planets
Select all the planets classified as inner planets.
Venus and Earth
Jupiter and Neptune
Saturn and Uranus
Mars and Mercury
Select all the planets considered outer planets.
Venus and Earth
Jupiter and Neptune
Saturn and Uranus
Mars and Mercury
Which planet has a longer period of revolution?
Jupiter
Earth
Mercury
Neptune
Which planet has a shorter period of revolution?
Saturn
Earth
Jupiter
Neptune
Which planet has the shortest period of rotation?
Saturn
Mercury
Venus
Neptune
True or False. Inner planets are further away from the sun than outer planets.
True
False
True or False. Outer planets are further away from the sun the inner planets.
True
False
The picture to the left represents a model of our solar system. Which property/characteristic of our solar system does it model correctly?
The surface features of our planets.
The volumne of our planets.
The distance between our planets.
The order of our planets.
True or False. The telescope was 1st used to view stars in 1961.
True
False
True or False. ISS (International Space Station) was carried into space by the Space Shuttle allowing astronauts to spend extended time in space in 1998.
True
False
True or False. Goddard invents and launches the 1st rocket in 1927.
True
False
True or False. The US launches the 3rd crewed reusable spacecraft into space, Space Shuttle Columbia in 1981.
True
False
True or False. Neil Armstrong becomes the 1st man to walk on the moon (Apollo 11) in 1969.
True
False
When studying the planets in our solar systems, a telescope can be used to _____?
measure the surface temperature of our planets.
identify the rocks that make up our inner planets.
observe the surface features of our planets.
identify how our planets were formed.
The picture to the left represents a model of the moon's revolution around the Earth. Letter X represents the force of gravity. What would happen if force X is removed?
It would speed up the moon's revolution around the sun.
It would slow down the moon's revolution around the sun.
The moon would move away from the Earth in a straight line.
Everything remains the same.
What do you think the next step in space exploration will be for the United States?
To send crewed missions to study the moon.
To send crewed missions to different solar systems.
To send crewed missions to other galaxies.
The U.S. doesn't have any space explorations planned.
