Understanding Check: Characteristics of Stars

What is the term used to describe the brightness of a star as seen from Earth?

• Absolute Magnitude

• Apparent Magnitude

• Luminosity

• Spectral Type

Tags

DOK Level 1: Recall

Which color of star is the hottest?

• Red

• Yellow

• Blue

• White

Tags

DOK Level 1: Recall

If a star has an absolute magnitude of -5, what can be inferred about its brightness compared to a star with an absolute magnitude of 5?

• It is dimmer

• It is brighter

• They have the same brightness

• It is redder

Tags

DOK Level 1: Recall

Which factor primarily determines the color of a star?

• Its size

• Its distance from Earth

• Its temperature

• Its age

Tags

DOK Level 1: Recall

A star is observed to be red. What can be inferred about its temperature compared to a blue star?

• It is hotter

• It is cooler

• It has the same temperature

• It is larger

Tags

DOK Level 1: Recall

What is the relationship between a star's temperature and its color?

• Hotter stars are redder

• Cooler stars are bluer

• Hotter stars are bluer

• Temperature does not affect color

Tags

DOK Level 2: Skill/Concept

Which of the following stars is likely to have the greatest absolute brightness?

• A small red star

• A large blue star

• A medium yellow star

• A small white star

Tags

DOK Level 1: Recall

Explain why two stars with the same apparent magnitude might not have the same absolute magnitude.

• They are at different distances from Earth

• They have different colors

• They have different temperatures

• They have different sizes

Tags

DOK Level 2: Skill/Concept

Sara examined several photos of stars to compare their temperatures. She organized the photos from COOLEST to HOTTEST. Which of these is correct?

• red, yellow, white, blue

• white, red, yellow, blue

• yellow, white, blue, red

• blue, yellow, white, red

The following stars are rated on a scale of apparent magnitude.

A -1.53

B 1.16

C -0.25

D 6.56

Which answer lists the stars from dimmest to brightest when viewed from Earth?

• D, B, C, A

• A, B, C, D

• D, A, B, C

• A, C, D, B