Galaxies, Inertia/Gravity, and Space Rocks

Camyrn, Jamya, and Io developed four simple models. Which model BEST represents the relative positions of the solar system, the Milky Way galaxy, and the universe.

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During a school trip to the planetarium, Ian asked, 'What is the name of the galaxy where Earth is located?'

• Andromeda

• Sun Galaxy

• Comet Galaxy

• Milky Way Galaxy

Kierstyn, Jayden, and Evan are discussing the sizes of different astronomical objects. Which list is organized from SMALLEST to LARGEST?

• Planet, Galaxy, Solar System, Universe

• Solar System, Planet, Universe, Galaxy

• Universe, Solar System, Planet, Galaxy

• Planet, Solar System, Galaxy, Universe

Melissa and Rue are looking at different images of galaxies. Which picture BEST represents the Milky Way Galaxy?

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During a class discussion, Rayell asked, 'Which letter in the illustration represents where our solar system is located in the Milky Way Galaxy?'

• Position A

• Position B

• Position C

• Position D

Malia creates a basic model of the moon's orbit around the Earth. Seen in the picture.

Malia receives feedback from another student, Mareyya, that it is important to include gravity and inertia to show the forces that help the moon maintain its orbit. Choose the model that shows the correct placement of the forces.

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Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Yeiden noticed that without the Sun, the planets would travel in a straight line. This fact represents Newton's law of __________: an object stays in motion unless an outside force acts on it.

• inertia

• acceleration

• action-reaction

• gravitational attraction

Kynsley and Justin are discussing how gravity works. Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all the planets in orbit around the Sun. What does the force of gravity depend on?

• mass and weight

• weight and speed

• mass and distance

• speed and distance

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Jacobi and Avery are discussing why the moon orbits our Earth. The opposite would never be true; the Earth would never orbit the moon. One reason is due to the force of gravity. The object __________ has a greater gravitational force and that determines what satellites orbit around it.

• with the greater mass

• containing mostly water

• with a thicker atmosphere

• with the greater diameter

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Phillip and Kristina are observing how the force of gravity changes as they move two objects further apart. They notice that as the distance between the objects increases, the force of gravity __________________________.

• remains the the same.

• increases than decreases.

• increases.

• decreases.