WorksheetsGravity and Solar System
Total questions: 21
Worksheet time: 11mins
Which characteristic distinguishes a moon from other celestial bodies?
A moon directly revolves around a star.
A moon indirectly revolves around a star.
A moon has an elliptical orbit around the sun.
A moon is composed of gases that revolve around the sun.
The United States’ Apollo 11 mission was the first spaceflight that landed on the moon and the first moonwalk. , the astronauts were leaping lightly around the moon and floating back to the surface.
If the astronaut were to leap on Earth they would be quickly pulled back down. Which of the following statements explains why astronauts are able to leap lightly on the moon as compared to Earth?
They experience less atmospheric force than if they were on Earth.
They experience less gravitational force than if they were on Earth.
They experience more atmospheric force than if they were on Earth.
They experience more gravitational force than if they were on Earth.
Which planet exerts the strongest gravitational force in our solar system?
Earth
Jupiter
Mars
Saturn
What does the strength of gravitational force depend on?
mass and distance
mass and speed
shape and speed
shape and distance
An astronomer is looking through a powerful telescope and observes many celestial objects orbiting the sun. He observes one with rock, ice, and a long tail.
What celestial object is he most likely looking at?
Comet
Dwarf planet
Planet
Asteroid
Most asteroids are found in our solar system between the orbits of
Mars and Jupiter in the main asteroid belt.
Venus and Earth in the main asteroid belt.
Saturn and Uranus in the main asteroid belt.
Mercury and Mars in the main asteroid belt.
Which of the following requirements must be met for an object to be considered a planet?
It directly revolves around a star.
It has a nearly spherical shape.
It has cleared the neighborhood around it.
All of the above.
Why does Earth constantly revolve around the sun?
Earth is attached to the sun by a gravitational force that operates like a rigid pole.
Earth is pushed away from the sun due to the heat waves that are produced by the sun.
Earth’s speed allows it to resist the pull of the gravitational force between Earth and the sun.
Earth is caught in the gravitational force between Venus and Mars, causing it to rotate.
Which statement is true about the relationship between the mass of a planet and its gravitational pull?
The larger the mass of a planet, the greater its gravitational pull.
The larger the mass of a planet, the smaller its gravitational pull.
The smaller the mass of a planet, the greater the gravitational pull.
The smaller the mass of a planet, the same the gravitational pull.
Which of these statements is true regarding the number of moons in the solar system?
There are no planets that do not have a moon.
All moons in the solar system have been discovered.
Planets in the solar system never have more than five moons
Planets in the solar system have different numbers of moons.
Which of these would be considered a natural satellite?
Saturn
a GPS satellite
Saturn’s moon
the Hubble Space Telescope
Which of these statements is NOT true of dwarf planets?
Dwarf planets are in direct orbit around the sun.
Dwarf planets have a nearly round shape.
Dwarf planets share their orbit with many large objects.
Dwarf planets have cleared the neighborhood around their orbit.
What is the astroid belt? - Choose two statements that apply-
Tens of thousands of known asteroids, and probably many more undiscovered asteroids
Tens of thousands of known asteroids
between the orbits of Mars and Jupiter
between the orbits of Saturn and Jupiter
Which planets are more likely to form systems of moons?
massive planets
smaller planets
planets closest to the sun
planets farthest away from the sun
Which of these is NOT a requirement for a celestial object to be considered a planet?
It has to have a moon.
It has to clear its neighborhood.
It has to attract matter as it moves.
It has a nearly spherical shape.
Which of the following is the reason that moons are not categorized as planets?
It has very low gravitational force.
It is sharing its neighborhood with other celestial objects
It doesn't revolve around a star
It lacks spherical shape.
Which of the following is the reason that dwarf planets are not categorized as planets?
It has very low gravitational force.
It is sharing its neighborhood with other celestial objects
It doesn't revolve around a star
It lacks spherical shape.
Which of the following is the reason that astroids and comets are not categorized as planets?
It has very low gravitational force.
It is sharing its neighborhood with other celestial objects
It doesn't revolve around a star
It lacks spherical shape.
Why do planets have a nearly spherical shape?
A planet’s rotation causes it to become round over time.
Gravitational forces around large objects push matter outward.
Planets will form in the shape of the stars they revolve around.
Gravitational forces in large objects pull matter toward their centers.
What is gravitational force?
an elastic force that causes planets to expand
an attractive force between all objects that have mass
a destructive force that creates radiation in the solar system
a conductive force that helps light travel through the solar system
A solar system is a system
in which only planets travel around a star.
that includes only the sun, Earth, and moon.
that includes a star, planets, and their moons.
made up of a star and all the objects that travel around it.
