Unit 1b Review

Which of the following is correct about the Milky Way galaxy?

• The Milky Way galaxy contains only one solar system.

• The Milky Way galaxy is shaped like a perfect sphere.

• The Sun is part of the Milky Way galaxy.

• Earth is the largest planet in the Milky Way galaxy.

Tags

NGSS.MS-ESS1-1

Our solar system is located within a huge collection of stars, gas, and dust. What is this collection called?

• a nebula

• a galaxy

• a planet

• a cluster

Which statement about the sun is not true?

• The sun is a star.

• The sun provides energy for life on Earth.

• The sun is smaller than most stars in the galaxy.

• The sun is made entirely of solid material.

The diagram shows the paths of planets around the sun. What is the name of the movement of a planet along its path around the sun?

• rotation

• revolution

• gravity

• orbit

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-1

Which type of galaxy is the Milky Way classified as?

• Spiral galaxy

• Elliptical galaxy

• Irregular galaxy

• Lenticular galaxy

Tags

NGSS.MS-ESS1-2

What happens to the gravitational force if the mass of one of the objects increases?

• The gravitational force decreases.

• The gravitational force increases.

• The gravitational force remains the same.

• The gravitational force becomes zero.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

What type of galaxy is the Milky Way galaxy?

• Elliptical

• Irregular

• Spherical

• Spiral

Tags

NGSS.MS-ESS1-2

Which two forces work against each other to maintain the structure of our Solar System?

• gravity and friction

• inertia and magnetism

• gravity and inertia

• pressure and temperature

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What force keeps the moon in orbit around the Earth?

• Rotation of the earth

• Earth's magnetism

• The tilt of the earth

• Gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Grace and Anika are each holding a ball, but Grace is standing closer to a large magnet than Anika is. The magnet's pull holds each ball in place. How does the effect of the magnet's pull on Anika's ball compare with the effect of the magnet's pull on Grace's ball?

• The magnet has less pull on Grace's ball because it is closer.

• The magnet has less pull on Anika's ball because it is farther away.

• The magnet has more pull on Anika's ball because it is smaller.

• The magnet has the same pull on all balls that are in place.

Tags

NGSS.MS-PS2-5