Why does the Earth orbit the sun?

The sun pulls Earth in an orbit.

Electromagnatism from the sun keeps Earth in orbit.

Gravity on moon is less than the gravity on earth because

c. moon's mass is equal to Earth

The image shows the force of gravity that Earth has on objects, like the International Space Station, as it orbits around Earth. What is the role of initial motion in this diagram?

The initial motion of the object is at right angles to the planet’s surface (or tangent to the orbit path). This is needed to establish an orbital motion.

The only force acting on the space probe is the planet’s gravity.

There is no friction in space to slow moving objects, so once the probe is in orbit it will stay there.

The image shows the force of gravity that Earth has on objects, like the International Space Station, as it orbits around Earth. What is the role of gravity in this diagram?

The only force acting on the space probe is the planet’s gravity.

The initial motion of the object is at right angles to the planet’s surface (or tangent to the orbit path). This is needed to establish an orbital motion.

There is no friction in space to slow moving objects, so once the probe is in orbit it will stay there.

The image shows the force of gravity that Earth has on objects, like the International Space Station, as it orbits around Earth. What is the role of friction in this diagram?

There is no friction in space to slow moving objects, so once the probe is in orbit it will stay there.

The initial motion of the object is at right angles to the planet’s surface (or tangent to the orbit path). This is needed to establish an orbital motion.

The only force acting on the space probe is the planet’s gravity.

Which statement best describes how gravity and the space probe’s orbit are used to detect the location of the Alien Death Moon.

Because the Alien Death Moon has a large mass it will have an observable gravitational pull on the probe. The path of the probe shows a circular orbit, so I can conclude that the Alien Death Moon is in the center of the probe’s orbit.

Because the Alien Death Moon has a small mass it will not have an observable gravitational pull on the probe. The path of the probe shows a circular orbit, so I can conclude that the Alien Death Moon is in the center of the probe’s orbit.

Because the Alien Death Moon has a mass equal to the probe it will have an observable gravitational pull on the probe. The path of the probe shows a circular orbit, so I can conclude that the Alien Death Moon is in the center of the probe’s orbit.

Which statement best describes how the force of gravity, over billions of years, causes a cloud of gas and dust to form clumps that become the sun and planets in a solar system.

Gravity is an attractive force that causes the gas and dust to clump together. As the clumps get larger (more massive) they exert more gravity and continue to grow. The clumps eventually grow large enough to form a Sun (in the middle) and planets (orbiting a Sun).

Gravity is a non-attractive force that causes the gas and dust to separate As the clumps move apart, they exert less gravity and continue to shrink. The clumps eventually grow very small. Eventually a Sun (in the middle) and planets (orbiting a Sun) will form.

Gravity is an attractive force that causes the gas and dust to pull apart. As the clumps get larger (more massive) they exert less gravity and continue to grow. The clumps eventually grow large enough to form a Sun (in the middle) and planets (orbiting a Sun).

A small space probe is moving in a straight line past a planet. The space probe has no engine of its own. Predict which path the probe will follow. Choose one answer below.

c - the object’s path changes, moving around the planet

a - the object’s path changes, moving away from the planet

b - the object’s path does not change direction

Using Figure 2, select all the statements which are true regarding the Milky Way Galaxy and Our Solar System:

Both are spinning around the center.

Both were formed when dust and gas clumped together into space objects.

Gravity is the force holding all the material together.

Our solar system is much smaller than the Milky Way galaxy.

Both have objects orbiting a very small center.

Mystery Object Info Diameter = 400 km Orbit Shape = circular Composition = Metal Brightness = 1 Given the Mystery Object Info above, what evidence supports the Mystery Object being an Alien Spacecraft? Select all that apply.

The mystery object has a diameter of 400km, which is between 10 and 2000 km.

The mystery object’s path is circular and an alien spacecraft also is a circular orbit.

The mystery object is made of metal and an alien spacecraft is also made of metal.

The mystery object has a brightness value of 1 and an alien spacecraft is also a brightness of 1.

Unit 8.4 (MiSTAR)

Authored by Nathan Alkire

Science

6th - 8th Grade

NGSS covered

Used 22+ times

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25 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The sun is located in the center of the system model because the sun: __________ .

is the least massive object in the system, and more massive objects orbit less massive objects.

is the most massive object in the system, and less massive objects orbit more massive objects.

has the lowest temperature, and hotter objects orbit cooler objects.

has the highest temperature, and cooler objects orbit hotter objects.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-ESS1-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Based on your understanding of the formation of the solar system, describe why gravity was essential to the formation of the stars in the Milky Way galaxy.

Gravity was essential in the formation of the Milky Way galaxy because it was the force that caused the dust and gas to clump together to form stars.

Gravity was not essential in the formation of the Milky Way galaxy because it was the force that caused the dust and gas to clump together to form stars.

Gravity was essential in the formation of the Milky Way galaxy because it was the force that caused the dust and gas to move further apart to form stars.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Using Table 2, what is one difference that the planets have?

Some of the planets have moons.

Some of the planets are millions of kilometers from the Sun.

Some of the planets orbit the Sun.

Some planets are rocky, some are gas compositions.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Using Table 2, what are the similarities that the planets have?

All of the planets have moons.

All of the planets are the same distance from the Sun.

All of the planets orbit the Sun.

The rocky planets are bigger than non-rocky planets.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The image shows 8 locations of a mystery object over a period of time. Each number represents the object's position at a different time.
Based on your knowledge of how things move throughout our solar system, what might this object be?

Comet

Asteroid

Planet

A Moon

Tags

NGSS.MS-ESS1-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

As the mystery object moves from position 1 to 3, it will feel:

a stronger gravitational pull from the Sun

a weaker gravitational pull from the Sun

the same gravitational pull from the Sun

cannot answer without knowing the size of the object

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

As an object moves closer to the Sun, describe what phenomenon occurs:

a stronger gravitational pull from the Sun as the distance between the objects decreases

a weaker gravitational pull from the Sun as the distance between the objects decreases

the same gravitational pull from the Sun as the distance between the objects decreases

cannot answer without knowing the size of the object

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

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Unit 8.4 (MiSTAR)

The sun is located in the center of the system model because the sun: __________ .

Based on your understanding of the formation of the solar system, describe why gravity was essential to the formation of the stars in the Milky Way galaxy.

Using Table 2, what is one difference that the planets have?

Using Table 2, what are the similarities that the planets have?

The image shows 8 locations of a mystery object over a period of time. Each number represents the object's position at a different time.
Based on your knowledge of how things move throughout our solar system, what might this object be?

As the mystery object moves from position 1 to 3, it will feel:

As an object moves closer to the Sun, describe what phenomenon occurs:

Which letter in this diagram shows our modern solar system with planets orbiting around the sun?

Using the diagram, from the time (a) begins to form and finishes at (e) what do the clumps of material at (a) eventually become in the actual solar system at (e)?

Which letter in this diagram shows the nebula that was left over after an ancient star exploded?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Unit 8.4 (MiSTAR)

The sun is located in the center of the system model because the sun: __________ .

Based on your understanding of the formation of the solar system, describe why gravity was essential to the formation of the stars in the Milky Way galaxy.

Using Table 2, what is one difference that the planets have?

Using Table 2, what are the similarities that the planets have?

The image shows 8 locations of a mystery object over a period of time. Each number represents the object's position at a different time.Based on your knowledge of how things move throughout our solar system, what might this object be?

As the mystery object moves from position 1 to 3, it will feel:

As an object moves closer to the Sun, describe what phenomenon occurs:

Which letter in this diagram shows our modern solar system with planets orbiting around the sun?

Using the diagram, from the time (a) begins to form and finishes at (e) what do the clumps of material at (a) eventually become in the actual solar system at (e)?

Which letter in this diagram shows the nebula that was left over after an ancient star exploded?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

The image shows 8 locations of a mystery object over a period of time. Each number represents the object's position at a different time.
Based on your knowledge of how things move throughout our solar system, what might this object be?