Unit 1: Astronomy and Space

According to the Big Bang Theory, the universe originated as _______.

• 1. a complex system of galaxies that has since been contracting.

• 1. a single location where all matter and energy was concentrated.

• 1. an extremely large, limitless void without any matter or energy.

• a massive ball of matter and energy with near-infinite diameter.

Tags

NGSS.HS-ESS1-2

A student wants to create a model to represent change in the universe over time. Which of the following models best meets the student’s goal?

• The student can poke holes in a black sheet of paper and then shine light on it.

• The student can draw dots on a balloon and then blow air into the balloon.

• The student can allow grains of sand to slowly fall into a spherical container.

• The student can open the stopper on an inflated beach ball.

The answer to which of the following questions provided evidence of the big bang theory?

• 1. How many galaxies are there estimated to be the universe?

• 1. At what speed does light travel across the entire universe?

• Why do all galaxies appear to be moving away from each other?

• 1. How has the average lifespan of stars changed over time?

Tags

NGSS.HS-ESS1-2

Edwin Hubble studied the redshifts of many galaxies. What did he discover about the relationship between the distance from Earth to a galaxy and its motion?

• The greater the galaxy’s distance, the faster it moves away from Earth.

• The speed at which a galaxy moves away from Earth is independent of its distance.

• Distant galaxies move toward Earth, whereas nearby galaxies move away from Earth

• Distant galaxies orbit nearby galaxies in elliptical paths, much like planets orbit the sun.

Which is true about the Cosmic Microwave Background Radiation ?

• 1. It is leftover energy from the start of the universe expansion

• 1. Something that heats up our food

• 1. Affects the Redshift 

• None of the above

Tags

NGSS.HS-ESS1-2

Which of the following is an accurate comparison of comets to asteroids?

• Comets contain more ice and dust than asteroids

• Comets and asteroids are made of the same material

• Comets are made of more dense material than asteroids

• Comets contain material from exploded stars and asteroids do not

An accurate model of the motion of a planet should include a representation of which of the following concepts?

• Inertia causing the object to speed up

• Gravity pushing the object out of orbit

• 1. Inertia and gravity acting together to move planets

• 1. Gravity and inertia changing with speed

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

For a solar eclipse to occur, which of the following must be true?

• The size of the Sun has decreased that day.

•  The rotation of Earth and the rotation of the Moon are the same.

•  The Sun and Moon are on opposite sides of Earth.

• The Moon is between Earth and the Sun.

Tags

NGSS.MS-ESS1-1