SC.8.E.5.2

The sun is much larger than the moon. However, as viewed from Earth, the sun and moon appear to be the same size. Why do the sun and moon appear to be the same size when viewed from Earth?

• The moon is much hotter than the sun.

• The moon is much denser than the sun.

• The moon is much brighter than the sun.

• The moon is much closer to Earth than the sun.

Tags

NGSS.MS-ESS1-1

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

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

The graph show the relationship between absolute magnitude and the color in stars.

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

The diameter of Saturn is nearly ten times that of Earth. However, the density of Saturn is much less than that of Earth. What is the reason for this?

• Earth is father from the sun than Saturn.

• Saturn has a ring system.

• Earth is hotter than Saturn.

• Saturn is a gaseous planet.

Jill is creating a scale model of the Solar System. She uses a basketball to represent the Sun. Which of the following should she use to most accurately represent the size of Earth?

• Tennis ball

• Ping pong ball

• Marble

• Grain of sand

Tags

NGSS.MS-ESS1-3