Unit 7.2 Stars and the Sun

There are 3 types of galaxies, they are

• spiral, oblong, irregular

• spiral, irregular, elliptical

• circular, irregular, spiral

• spherical, oblong, circular

What galaxy do we live in?

• Andromeda

• Large Magellanic Cloud

• Milky Way

• Orion

Our galaxy is known as a

• barred-spiral galaxy

• irregular galaxy

• elliptical galaxy

• spherical galaxy

What is the relationship between the color of stars and their surface temps?

• red stars are hotter, blue stars are cooler

• yellow stars are the hottest, white stars are the coolest

• red stars are hotter, yellow stars are the coolest

• red stars are cooler, blue stars are hotter

What is the relationship between large massive stars and small dwarf stars?

• large massive stars are brighter than small dwarf stars

• dwarf stars are brighter than massive stars

• there is no relationship between the size of a star and it's brighness

A light year measures

• how fast the sun travels around the Milky Way

• how far the Earth travels in a year

• the distance light can travel in a year

• how fast light can travel

Binary star systems tell us what about stars?

• their mass

• the size of the star

• the age of the star

• the type of star

Apparent magnitude is a measure of...

• how far a star is from us

• how bright a star appears to be from the Earth

• a star's brightness compared to other stars around it

• a star's luminosity

With apparent magnitude,

• the bigger the star, the dimmer it appears to be

• the farther away the star, the brighter it appears to be

• the closer the star, the brighter it appears to be

• the smaller the star, the brighter it appears to be

The HR Diagram is a star's relationship between....

• the distance from the Earth and the size of the star

• the temperature of the star and the distance from the Earth

• the size and the distance from the Earth of the star

• the brightness and temperature of the star

Tags

NGSS.HS-ESS1-3