SC 3 E 5 3

The points labeled on the chart below represent the approximate size of Earth, the Milky Way, the Moon, and the Sun. The approximate size of the Solar System is also shown.

Which point on the chart best represents the approximate size of the Sun?

• W

• X

• Y

• Z

Tags

NGSS.MS-ESS1-3

Gloria is at the observatory and is examining a newly discovered star through a powerful telescope. She wants to find out how bright the star actually is. What information does she need to calculate the absolute magnitude of a star?

• Color and temperature of the star

• Color and composition of the star

• Apparent magnitude and distance from Earth of the star

• Color and distance from Earth of the star

The Sun's energy and composition is provided by which of the following?

• The burning of fossil fuels within the Sun.

• Solar power that produces electricity in the Sun.

• The Sun's magnetic field.

• The fusion of hydrogen into helium.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Our solar system consists of eight planets. Each planet is classified as either a terrestrial planet or a gas giant planet. Which is a difference between these two types of planets?

• Terrestrial planets are larger than gas giant planets.

• Gas giant planets are denser than terrestrial planets.

• Terrestrial planets have thinner atmospheres than gas giant planets.

• Gas giant planets have rocker crusts than terrestrial planets.

Natasha examined a table that lists the characteristics of four stars.

Which star would appear the dimmest from Earth's surface?

• Star A

• Star B

• Star C

• Star D

Which of the following conclusion can be drawn based on the graph.

• Absolute magnitude is not related to the color of a star.

• Blue stars are farther from Earth than red stars.

• Blue stars are generally more luminous than red stars.

• A blue star will appear brighter from Earth's surface than a red star.

Which of the following statements best relates a star's color to its surface temperature?

• A blue star has a relatively low temperature.

• A red star has a relatively high temperature.

• A blue-white star has a relatively low temperature.

• A yellow star has a relatively low temperature.

A scientist examines a star system that is made up of two pairs of stars. What type of system is the scientist examining?

• Single

• Binary

• Triple

• Quadruple

Which of these processes is defined as the joining of two atomic nuclei to create a new nucleus?

• Nuclear fission

• Nuclear fusion

• Particle radiation

• Nuclear radiation

Tags

NGSS.HS-PS1-8

Which statement is true regarding measuring distances in space?

• An astronomical unit (AU) is larger than a light year.

• The time taken for light to travel through our Solar System is longer than that for light to travel through the Milky Way.

• The Earth is one astronomical unit (AU) from the Sun.

• All of the terrestrial planets are more than one astronomical unit (AU) from the Sun.

Tags

NGSS.MS-ESS1-3