Astronomy Review

The Big Bang theory is a scientific explanation for the origin of what?

• The universe

• The solar system

• Life on Earth

• The Milky Way galaxy

Tags

NGSS.HS-ESS1-2

The Steady State theory is defined as:

• A cosmological model that suggests the universe is always expanding but maintaining a constant average density.

• A theory that describes the universe as having a beginning and an end.

• A model that explains the universe as static and unchanging.

• A theory that suggests the universe is contracting.

Hubble’s Law is defined as:

• The observation that the universe is expanding, with galaxies moving away from each other at speeds proportional to their distance.

• The theory that the universe is contracting, with galaxies moving towards each other.

• The principle that the speed of light is constant in a vacuum.

• The hypothesis that the universe is in a steady state, neither expanding nor contracting.

Redshift is defined as:

• The increase in wavelength of light from an object moving away from the observer

• The decrease in wavelength of light from an object moving towards the observer

• The change in frequency of light due to the observer's motion

• The bending of light as it passes through different mediums

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

Blueshift is defined as:

• The increase in wavelength of light from an object moving away from the observer

• The decrease in wavelength of light from an object moving towards the observer

• The phenomenon where light is absorbed by a medium

• The scattering of light by small particles

Tags

NGSS.HS-PS4-3

The Doppler effect is defined as:

• The change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.

• The bending of light as it passes around the edge of an object.

• The splitting of a beam of light into its component colors.

• The phenomenon where light is absorbed and re-emitted by a material.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

The difference between absorption and emission spectrums is:

• Absorption spectrum shows dark lines on a colored background, while emission spectrum shows colored lines on a dark background.

• Absorption spectrum shows colored lines on a dark background, while emission spectrum shows dark lines on a colored background.

• Absorption spectrum and emission spectrum both show colored lines on a dark background.

• Absorption spectrum and emission spectrum both show dark lines on a colored background.

Tags

NGSS.HS-PS4-3

Complete the life cycle of a star diagram: A. ____ B. ____ C. ____ D. ____ E. ____ F. ____ G. ____

• A. Nebula B. Main Sequence C. Red Giant D. Planetary Nebula E. White Dwarf F. Supernova G. Neutron Star

• A. Main Sequence B. Red Giant C. Supernova D. Neutron Star E. Black Hole F. White Dwarf G. Nebula

• A. Nebula B. Protostar C. Main Sequence D. Red Giant E. Supernova F. Neutron Star G. Black Hole

• A. Protostar B. Main Sequence C. Red Giant D. White Dwarf E. Supernova F. Neutron Star G. Black Hole

Tags

NGSS.HS-ESS1-3

The H-R Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature, and evolutionary stage.

• A tool for measuring the distance of stars

• A graphical tool for classifying stars

• A method for calculating star mass

• A chart for tracking star movement

Tags

NGSS.HS-ESS1-3

In the H-R diagram, which type of star is found in the upper right corner?

• Red Giants

• Main Sequence Stars

• White Dwarfs

• Red Supergiants

Tags

NGSS.HS-ESS1-3