Stars Pre-Assessment

The apparent magnitude of a star is a measure of its

• brightness as seen from earth.

• rate of energy output at all wavelengths.

• actual brightness.

• distance as seen from Earth.

The absolute magnitude of a star is a measure of its

• brightness as seen from earth.

• rate of energy output at all wavelengths.

• actual brightness.

• distance as seen from Earth.

Which of the following does not happen to a star when it dies?

• They become a “shooting star,” or a meteor.

• Dying stars can explode.

• A dying star can become a black hole.

• Stars can expand and get bigger right before they die.

When will the Sun burn out?

• 5 million years from now

• 100 million years from now

• 5 billion years from now

• 15 billion years from now

Tags

NGSS.HS-ESS1-1

Dark, cooler areas on the sun’s surface are called

• sun spots.

• solar flares.

• coronas.

• prominences.

How does a star produce heavier elements than iron from hydrogen and helium?

• Rapid rotation

• Heat

• Nuclear fusion

• Supernova

Tags

NGSS.HS-ESS1-3

What can we learn about a star by analyzing its emission spectrum?

• The spectral lines show the apparent magnitude of a star.

• The spectral lines indicate the apparent brightness of a star.

• The spectral lines show the relative age of a star.

• The spectral lines identify the elements that compose the star’s atmosphere.

Which elements are present in this star given it's profile at the bottom?

• Lithium and Cadmium

• Cadmium and Sodium

• Sodium and Helium

• Hydrogen and Potassium

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-2

What color are the hottest stars?

• red
• yellow
• orange
• blue

What is the color of the coolest stars?

• blue

• Yellow

• Red

• Orange