Q4 - Week 31 4/13 - U5 L4 E3 Stars and Sun

Why does the Sun appear to be the largest star if it is actually only a medium-sized star?

• It is farthest from Earth.

• The sun is not a star.

• It is closest to the Earth.

• It is not in the middle of the solar system.

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?

• Alpha Centauri A is further away from Earth than the Sun.

• 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

Which is the brightest star in the sky?

• Betelgeuse
• Rigel
• Sirius
• Antares

About how many minutes does it take light from the sun to travel to the Earth?

• it is instant
• 14 seconds
• 8 minutes
• 1 light year

Tags

NGSS.MS-ESS1-1