Openstax Astronomy

Which event occurred approximately 4.6 billion years ago?

• evolution of the earliest fish

• evolution of stromatolites

• formation of the oldest known Earth rocks

• formation of Earth and our solar system

Tags

NGSS.HS-ESS1-6

Energy is produced within a star's core by the process of

• nuclear fusion

• insolation

• conduction

• radioactive decay

Tags

NGSS.HS-ESS1-1

The diagram below represents the light spectra given off by the same element as observed under two

different conditions. Spectrum A was observed when that element was heated in a laboratory.

Spectrum B shows the same element as seen in the light from a distant star.

The light spectrum observed from this distant star shows a

• blue shift, which indicates that the star is moving toward Earth

• blue shift, which indicates that the star is moving away from Earth

• red shift, which indicates that the star is moving away from Earth

• red shift, which indicates that the star is moving toward Earth

Tags

NGSS.HS-PS4-3

The model below shows the apparent path of the Sun

as seen by an observer in New York State on the first

day of one of the four seasons.

This apparent path of the Sun was observed on the first day of

• fall

• winter

• summer

• spring

Tags

NGSS.MS-ESS1-1

One factor responsible for the strength of gravitational attraction between a planet and the Sun is the

• degree of tilt of the planet's axis

• planet's period of rotation

• amount of insolation given off by the Sun

• distance between the planet and the Sun

Tags

NGSS.MS-ESS1-2

Which two characteristics do all Jovian planets have

in common?

• large diameters and low densities

• large diameters and high densities

• small diameters and low densities

• small diameters and high densities

Which statement best describes the geocentric model

of our solar system?

• The Earth is located at the center of the model

• The Sun is located at the center of the model.

• All planets revolve around the Sun.

• All planets except the Earth revolve around the Sun.

Which list shows stars in order of increasing temperature?

• Barnard's Star, Polaris, Sirius, Rigel

• Aldebaran, the Sun, Rigel, Procyon B

• Rigel, Polaris, Aldebaran, Barnard's Star

• Procyon B, Alpha Centauri, Polaris, Betelgeuse

A blue shift of the light from a star indicates that the star

• will soon become a giant star

• is moving away from Earth

• will soon become a main sequence star

• is moving closer to Earth

Tags

NGSS.HS-PS4-3

Earth, the Sun, and billions of stars are contained within

• a single constellation

• a giant cloud of gas

• the solar system

• the Milky Way galaxy