CA 6 Review

The brightness of a star as seen from earth

• Apparent magnitude

• Awesome magnitude

• Absolute magnitude

• Amazing magnitude

Brightness determined by DISTANCE from the earth

• Amazing magnitude

• Absolute magnitude

• Apparent magnitude

• Awesome magnitude

Why can the apparent magnitude be inaccurate?

• It doesn't exist

• It may not be brighter compared to another star but instead just closer

• It only shows the brightness of stars too far away for humans to detect

• the scale is messed up

In comparison to other stars in the sky, the Sun appears brighter because it is–

• Bigger

• Smaller

• Nearer

• Further

Tags

NGSS.MS-ESS1-3

Alpha Centauri A is a star that is larger than the Sun, yet it appears much less bright. Which of the following is the best explanation for this?

• The difference in brightness is due to the distance of the Sun and Alpha Centauri A from Earth

• The smaller a star the brighter it appears

• The older the star the brighter it appears

• The larger the star always appears to be brighter

Tags

NGSS.MS-PS2-4

The absolute brightness of a star depends on its

• distance and temperature.
• size and temperature.
• color and temperature.
• distance and color.

The brightness of a star as seen from Earth is its 

• apparent brightness.
• absolute brightness.
• parallax.
• reflective brightness.

Tags

NGSS.HS-PS4-3

A very bright star can seem to be dimmer because it is 

• further away
• cooler in temperature
• very close
• batteries are dying

Differences in the moon's and sun's pull on different sides of the Earth cause _________.

• gravity
• lunar phases
• tides
• dabbing

Tags

NGSS.1-ESS1-1

The bulge of water on the side of the Earth closest to the moon produces ___________.

• high tide
• low tide
• neap tide
• spring tide

Tags

NGSS.MS-ESS1-1