Which characteristic of our solar system is most crucial to support life on Earth?

Distance between the Earth and Sun

The length of time of Earth’s revolution

The distance between the Sun and other stars

The composition of Earth’s Moon

Gravity is the primary force responsible for --

keeping planets in orbit around the Sun.

the reflection of sound energy.

the flow of electricity in a closed circuit.

What does it mean for a planet to be found within the “habitable zone” of a solar system?

A habitable planet is the correct distance from a star making the temperature conditions possible for supporting life.

A habitable planet is the correct distance from a star making the water cycle possible.

A habitable planet is too far away from a star making the temperature conditions too cold for liquid water to exist.

A habitable planet is a planet where life has been discovered by scientists.

An object will continue moving in a straight line unless it is acted on by an unbalanced force. Which of the following best explains Earth’s motion?

Earth moves in an elliptical orbit around the sun because the gravitational force of the sun pulls on Earth as Earth is also moving in a forward motion.

There is no unbalanced force acting on Earth because space is empty and nothing is touching Earth.

The gravitational force pulling Earth toward the sun is equal and opposite to the force pulling the sun toward Earth, so there is no unbalanced force acting on Earth.

The sun moves in an elliptical orbit around Earth, and the sun’s gravity pulls Earth along as it goes around Earth.

Astronomers track asteroids as they move throughout our solar system to hopefully prevent one from hitting Earth. The path of an asteroid is illustrated in the picture. What force is most responsible for the path this asteroid is following?

The gravitational pull from the sun

Gravitational pull from the center of the Milky Way galaxy

Newton’s 1st law of motion that says objects want to travel in a straight line unless acted on by an unbalanced force

Centripetal force that governs objects will move in circular patterns

The gravitational pull from Earth

Select the statements that are true about asteroids.

Asteroids are composed of rock.

Asteroids are primarily found in the asteroid belt between Mars and Jupiter.

Most asteroids are located in the Milky Way between the orbits of Jupiter and Saturn.

Asteroids orbit a planet near the Kuiper belt.

Where are most asteroids located in the solar system?

Between the orbits of Mars and Jupiter

Between the orbits of Earth and Mars

Between the orbits of Venus and Earth

Between the orbits of Jupiter and Saturn

Between the orbits of the Kuiper Belt and the oort cloud

The diagram below represents planets A and B, of equal mass, revolving around a star. Compared to planet A, planet B has a

weaker gravitational attraction to the star and a longer period of revolution

weaker gravitational attraction to the star and a shorter period of revolution

stronger gravitational attraction to the star and a shorter period of revolution

stronger gravitational attraction to the star and a longer period of revolution

Match the statement to the correct arrow.

The force of gravity keeps the moon in its orbit around Earth.

The property of inertia keeps the moon moving in a straight line until acted upon by another force.

The combination of the two keeps the Moon moving around the Earth

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Solar System

Solar System Review 7.9abc

Solar System Review 7.9ABC

Authored by Janet Sossamon

Science

7th Grade

TEKS covered

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22 questions

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MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which statements are correct about the force of gravity?

Gravitational force increases as the mass of the object increases.

Gravitational force increases as the mass of the object decreases.

Gravitational force increases as mass and distance increase.

Gravitational force increases as the distance between two objects increases.

Gravitational force increases as the distance between two objects decreases.

Tags

TEKS.SCI.7.9B

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which word best completes the sentence? Object A has a ---------- gravitational pull compared to Object B.

weaker

magnetic

greater

bonded

Tags

TEKS.SCI.7.9B

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true for both the Sun and the Earth?

They both produce their own light and heat

They both have a rocky surface and craters

They both are spherical and have objects that orbit them

They both can be seen only from the Sun

Tags

TEKS.SCI.7.9A

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This term balances the forward motion of satellites creating orbits, increases as objects move closer together, and creates spherical objects from their center of mass.

gravity

inertia

rotation

fusion

Tags

TEKS.SCI.7.9B

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which celestial object is defined by rocks orbiting the Sun between Mars and Jupiter?

Planet

Moon

Comet

Asteroid

Meteor

Tags

TEKS.SCI.7.9A

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which celestial object is defined by a large body, either of rock or gas, orbiting the Sun?

Planet

Moon

Comet

Asteroid

Meteor

Tags

TEKS.SCI.7.9A

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which celestial object is defined as a body orbiting a planet?

Planet

Moon

Comet

Asteroid

Meteor

Tags

TEKS.SCI.7.9A

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Solar System Review 7.9ABC

Which statements are correct about the force of gravity?

Which word best completes the sentence? Object A has a ---------- gravitational pull compared to Object B.

Which of the following statements is true for both the Sun and the Earth?

This term balances the forward motion of satellites creating orbits, increases as objects move closer together, and creates spherical objects from their center of mass.

Which celestial object is defined by rocks orbiting the Sun between Mars and Jupiter?

Which celestial object is defined by a large body, either of rock or gas, orbiting the Sun?

Which celestial object is defined as a body orbiting a planet?

Which celestial object is defined as the streak of light emitted from encountering friction in Earth's atmosphere?

Which celestial object is defined as a body of ice and dust orbiting the Sun?

Which characteristic of our solar system is most crucial to support life on Earth?

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