What is the relationships between the size of a star and its lifetime?

The larger the star, the shorter the lifetime.

The larger the star, the longer the lifetime.

A low mass main sequence star is...

so dense not even light can escape it.

The universe is expanding! This means that:

all of the galaxies are spreading out.

the universe must have started from a single point.

The Cosmic Background Radiation is:

the remaining energy from the big bang.

only located in certain places in the universe.

Hydrogen was the first element to be formed after the big bang, because...

the temperature at that time was just right for hydrogen

it was chosen completely at random

Which description is considered most accurate regarding what actually happened during the Big Bang?

All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

Two galaxies collided causing an immense explosion as stars crashed into one another

All matter emerged from a massive black hole at the center of the universe.

Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.

Which of the following is evidence of the Big Bang Theory?

Cavemen heard a loud bang at the beginning of time.

The universe is getting smaller

How did the discovery of Cosmic Microwave Background Radiation support the Big Bang Theory?

It supports the idea that the universe used to be hotter.

It suggests that Hydrogen and Helium were the first elements to form.

It confirms the age of the Earth to be around 5 billion years old.

It demonstrates that the universe continues to expand.

What can we conclude from the observation that nearly all galaxies are moving away from us?

The once-smaller universe is expanding in all directions.

Massive black holes are drawing galaxies away from Earth.

The Sun and Earth are located at the center of the universe.

Everything in the universe is moving the same direction.

The steady state theory holds that the universe:____

Looks essentially the same from every spot in it and at every time. It is homogenous and isotropic in space and time. It has uniform density so matter is continuously created.

Is homogeneous and its density is uniformly distributed. At the beginning the tiny dot expanded and spread out all the universe´s density.

Is a black dot that expanded to form all space, matter, time and energy. It is continously changing and it probably is going to crush.

How did the gas & dust between the stars & in all corners of the Universe get there?

the result of leftover remnants of previous stars

the result of planetary collisions & explosions

by the gravitational attraction of supermassive black holes

What characteristics are used to classify stars?

Temperature/color and brightness

Flammability, weight, and reactivity

Conductivity, luster, and density

Malleability, distance, and viscoscity

What is the Hertzsprung-Russel Diagram?

A graph used to classify stars according to their luminosity, color, temperature, and stage.

A map which tells the approximate location of stars in the Milky Way galaxy and their distance from Earth.

A table that alphabetically lists stars by name and includes dates of when the star was first charted.

A chart which organizes stars into categories based on the amount of Hydrogen they burn.

Which of the following statements is the most accurate statement for the element of Hydrogen?

It is the most abundant element found in stars.

It is a not found in many stars.

It is only found in dwarf stars and supergiants.

It causes stars to go supernova.

Describe gravity. Select all that apply.

The strength of the gravitational pull between two objects depends on masses.

Gravity is a force of attraction

Gravity holds the solar system together.

The strength of the gravitational pull between 2 objects depends on the it temperatures.

There is no gravity beyond the edge of our solar system.

You discover a new planet in our solar system. You measure the orbital period of the planet to be 246 years. Where is this planet likely to be located based on this information?

Closer to the Sun than Mercury.

Located between Earth and Jupiter.

Located between Uranus and Neptune.

E&S Practice Exam Semester 1

Authored by Jena Mayo

Science

11th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The Sun is made of...

Water and Ice

Hydrogen

Magnesium

Hydrogen and Helium

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens during nuclear fusion

Hydrogen reacts with Oxygen to create fire.

Hydrogen atoms are forced together to create Helium

Uranium and Plutonium split apart and release radiation.

Helium atoms break down to make hydrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Where does nuclear fusion occur?

Space

Radiation Zone

Photosphere

The Core

Tags

NGSS.HS-ESS1-1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

This image shows the:

Geocentric Solar System

Heliocentric Solar System

Tags

NGSS.MS-ESS1-1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What model does this represent?

Geocentric

Heliocentric

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How does the sun keep all of the planets in orbit?

The pull of its gravity

the flames give it power

the sun spots

The solar flares guide them

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Most of the sun’s energy is a result of

nuclear fusion

nuclear fission

atomic reactions

coronal mass ejection

Tags

NGSS.HS-ESS1-1

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E&S Practice Exam Semester 1

The Sun is made of...

What happens during nuclear fusion

Where does nuclear fusion occur?

This image shows the:

What model does this represent?

How does the sun keep all of the planets in orbit?

Most of the sun’s energy is a result of

The Milky Way galaxy is thought to be a(n)

What is the term used to describe a group of stars, dust, and gas bound together by gravity?

a gigantic explosion that causes the death of a large star

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