Starlight and Star Populations

Which statement best explains the difference between apparent magnitude and absolute brightness?

• Apparent magnitude is a measure of a star’s brightness at a known distance from Earth, and absolute brightness is a measure of the brightness of a star as seen from Earth.

• Apparent magnitude is a measure of a star’s brightness as seen from Earth and absolute brightness is a measure of the brightness of a star at a known distance from Earth.

• Apparent magnitude is a measure of a star’s size as seen from Earth and absolute brightness is a measure of a star’s size at a known distance from Earth.

• Apparent magnitude is a measure of a star’s color as seen from Earth and absolute brightness is a measure of the temperature of a star at a known distance from Earth.

True or False

The Sun is the biggest star in space.

• True

• False

Why do other stars appear so much smaller than the sun?

• They are much smaller
• They are so far away
• They are not as bright
• They are dwarf stars

Tags

NGSS.5-ESS1-1

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

Tags

NGSS.MS-PS3-4

What are stars?

• Rocky bodies
• Hot exploding balls of gas
• 5 pointed shapes
• Hollywood actors

Tags

NGSS.5-ESS1-1

Which star is closest to Earth?

• Betelgeuse
• Orion
• the sun
• Antares

Tags

NGSS.5-ESS1-1

The color of a star tells us its

• magnitude
• temperature
• size
• age

Which of the following is NOT a characteristic used to classify stars?

• Color
• Temperature
• Size
• Shape

A light year is a measurement of:

• Time
• Distance
• Gravity
• None of the Above

Stars give off heat and light in a process called ___________.

• nuclear fusion

• supernova

• luminosity

• spectroscopy

Tags

NGSS.HS-ESS1-1