Put the stars in order from coolest to hottest.

Red, Orange, Yellow, White, Blue

Blue, White, Yellow, Orange, Red

Red, Orange, Yellow, Blue, White

Red, Yellow, Orange, White, Blue

Which statement best describes stars?

celestial bodies made up of gas that give off light

large planets that are composed mostly of gases

faint dots of light that can be seen from Earth’s surface

objects that form in the outer parts of the solar system

Linda examined the sizes of several different stars. She listed them in order from smallest to largest. Which of the following stars would Linda list first ?

Barnard’s Star, 0.15 solar radius

One physical property of a star is apparent magnitude. Which of the following is used in determining the apparent magnitude of a star?

B. the distance the star is from Earth

A. the constellation the star is in

C. the number of times the star rotates

D. the number of prominences the star makes

The chart below displays the names of different stars and their colors. Which of the groups below best orders the stars from hottest to coolest?

C. Spica, Sun, Aldebaran, Antares

A. Antares, Spica, Sun, Aldebaran

B. Sun, Spica, Antares, Aldebaran

D. Antares, Aldebaran, Sun, Spica

One physical property of a star is absolute brightness. Which of the following is used in determining the absolute brightness of a star?

how bright the star actually is

how bright the star appears to be from the Earth

the number of prominences the star makes

What is meant by the term luminosity?

Luminosity is the amount of energy generated in the star as electromagnetic radiation.

Luminosity is how bright a star seems to an observer far away.

Luminosity is the color at which a star burns.

Luminosity is the determinant of whether a star is approaching an observer or receding,

Put the stars in order from coolest to hottest.

Red, Orange, Yellow, White, Blue

Blue, White, Yellow, Orange, Red

Red, Orange, Yellow, Blue, White

Red, Yellow, Orange, White, Blue

Which of the following best identifies a difference between apparent magnitude and luminosity in stars?

Two stars can have the same luminosity but different apparent magnitudes, depending on how far away they are.

The luminosity of a star will remain constant over the life of a star, but its apparent magnitude will change daily.

The measurement of the luminosity of a star depends on the position of the observer; apparent magnitude does not.

Luminosity is always given as a numerical value; apparent magnitude has no numeric value.

The Hertzsprung-Russell diagram is used for classifying stars based on the relationship between their brightness and their temperature and color. A diagram is provided. Which of the following is a trend among the main sequence stars?

The hotter the star, the more brightly it burns.

The larger stars emit light that is blue.

Stars dimmer than the Sun are of class O or B

Most of the stars are white or red.

Which of the following is NOT a physical property commonly used by scientist to classify stars?

Absolute magnitude (luminosity)

Compared to the rest of the stars, our sun is considered...

Medium size with medium temperature

Small with a medium temperature

What characteristics are used to classify stars?

Temperature/color and brightness

Flammability, weight, and reactivity

Conductivity, luster, and density

Malleability, distance, and viscoscity

degree of brightness of a star.

degree of compactness of a star.

degree of temperature of a star.

Stars Review

Authored by Abigail Souza

Science

7th - 8th Grade

91 Questions

NGSS covered

Used 532+ times

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Content View

Student View

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What category on the H-R diagram has the majority or the most stars?

Super giants

White Dwarfs

Giants

Main Sequence

Apparent (magnitude) brightness is affected by a star's distance from Earth.

False

True

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which property of a star is the brightness of a star at a standard distance?

Apparent (magnitude) brightness

Absolute (magnitude) brightness

Luminosity

Size of the star

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Our sun is average-sized and average temperature.

False

True

Very hot stars are what color?

Blue

Yellow

Red

Orange

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Star R and S both have the same luminosity of 100, if Star S is 10 ly farther from Earth which star has the highest apparent magnitude?

Star R

Star S

Both Star S and R

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Most stars we see in the night sky are actually part of binary star systems.

False

True

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Stars Review

What category on the H-R diagram has the majority or the most stars?

Apparent (magnitude) brightness is affected by a star's distance from Earth.

Which property of a star is the brightness of a star at a standard distance?

Our sun is average-sized and average temperature.

Very hot stars are what color?

Star R and S both have the same luminosity of 100, if Star S is 10 ly farther from Earth which star has the highest apparent magnitude?

Most stars we see in the night sky are actually part of binary star systems.

What is the color of the coolest stars?

What star are we revolving around now?

Put the stars in order from coolest to hottest.

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