Chapter 20 Test

MULTIPLE CHOICE
-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)

2

Use the image below to answer question number 25

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Completion
- Complete the following questions by  selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

The layer of Earth that extends 2,900 km below the surface and is made of elements such as magnesium and iron is the ______________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Earth started to become round as gravity crushed the rock at its _______________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

A star may form after two ______________ collide.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

The sum of the distances from the edge of the curve to two points inside a(n) ________________ is always the same.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Nuclear fusion occurs in the sun as a result of very high pressure and ________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Gravity changes the straight line motion of a body in space into a curved ___________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Activity on the sun's ______________ can affect Earth's atmosphere.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Sir Isaac Newton used the ______________ to explain why planets closest to the sun move faster.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

As gas clouds collapse and temperature increases, a _______________ may form.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Thermal energy moves from the sun's interior by the circulation of gases in the _____________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

A cooler area of the photosphere that may affect climate on Earth is a ______________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Gravity and ____________ must balance each other to hold a nebula together.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

The solar system was formed from a cloud called the ________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Gases circulate and carry energy to the sun's surface from the __________________.

Word Bank

planetesimals     orbit      crust      mantle      solar flare      rotation      core      corona      solar nebula(s)      globule(s)     temperature      major axis      nebula(s)      ellipse       semimajor axis      pressure      sunspot(s)      nuclear fusion                   period of revolution      photosphere      photosynthesis       revolution                              law of universal gravitation       radiative zone      convective zone      fusion 

2

Energy leaves the sun from the layer we see called the ____________________.

Matching
 - Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)

2

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Chapter 20 Test

The layer of Earth that extends 2,900 km below the surface and is made of elements such as magnesium and iron is the ______________________.

Earth started to become round as gravity crushed the rock at its _______________.

A star may form after two ______________ collide.

The sum of the distances from the edge of the curve to two points inside a(n) ________________ is always the same.

Nuclear fusion occurs in the sun as a result of very high pressure and ________________.

Gravity changes the straight line motion of a body in space into a curved ___________________.

Activity on the sun's ______________ can affect Earth's atmosphere.

Sir Isaac Newton used the ______________ to explain why planets closest to the sun move faster.

As gas clouds collapse and temperature increases, a _______________ may form.

Thermal energy moves from the sun's interior by the circulation of gases in the _____________________.

A cooler area of the photosphere that may affect climate on Earth is a ______________________.

Gravity and ____________ must balance each other to hold a nebula together.

The solar system was formed from a cloud called the ________________.

Gases circulate and carry energy to the sun's surface from the __________________.

Energy leaves the sun from the layer we see called the ____________________.

A nebula is held together by the balance of

After the solar nebula collapsed, its center became very hot and

Planets began to form as

The extra matter at the center of the solar nebula became the

Earth's layers formed as rocks melted and

The middle layer of Earth is the

The layer of Earth that has the lightest materials is the

Early life forms released oxygen into Earth's atmosphere through the process of

Scientists think that Earth's early atmosphere was made up of

The closer a planet is to the sun,

The gravitational attraction between two objects increases if

What is an object's resistance to changes in speed or direction called?

Earth's early continents formed as rocks melted and

The planets of the solar system formed as

How might Earth be affected by the activity ofsunspots on the sun's surface?

A planet with a large orbit has a

The dense layer of the sun that blocks light and energy is the

What might sunspots affect on Earth?

What happens if objects have more mass and move closer together?

What made the solar system form?

What happened as light rocks rose to Earth's surface?

How do planets move if they are closer to the sun?

What process gives the sun its energy?

The famous scientist who made important discoveries about the motion of planets around the sun was

The length of the semimajor axiscan be used to describe

The layer of Earth that extends 2,900 km below the surface and is made of elements such as magnesium and iron is the ______________________.

Earth started to become round as gravity crushed the rock at its _______________.

A star may form after two ______________ collide.

The sum of the distances from the edge of the curve to two points inside a(n) ________________ is always the same.

Nuclear fusion occurs in the sun as a result of very high pressure and ________________.

Gravity changes the straight line motion of a body in space into a curved ___________________.

Activity on the sun's ______________ can affect Earth's atmosphere.

Sir Isaac Newton used the ______________ to explain why planets closest to the sun move faster.

As gas clouds collapse and temperature increases, a _______________ may form.

Thermal energy moves from the sun's interior by the circulation of gases in the _____________________.

A cooler area of the photosphere that may affect climate on Earth is a ______________________.

Gravity and ____________ must balance each other to hold a nebula together.

The solar system was formed from a cloud called the ________________.

Gases circulate and carry energy to the sun's surface from the __________________.

Energy leaves the sun from the layer we see called the ____________________.

Giant eruptions on the sun's surface.

Caused by the rotation and movement of energy of the sun, and reach far out into space.

The visible surface of the sun.

A dense layer of the sun where light and energy are blocked and sent into different directions.

When two or more nuclei fuse to form another nucleus; the source of the sun's energy.

May be affected on Earth by the surface activity of the sun.