Stars Flashcard P

Front

Stars generate their light and heat energy through the process of _____ (Options: nuclear fusion, chemical reactions, photosynthesis, combustion).

Back

nuclear fusion

Front

Stars generate their light and heat energy through the process of _____.

Back

nuclear fusion

Front

Four characteristics that astronomers use to classify stars are:

Back

temperature, luminosity, size, and mass

Front

Stars that are much larger than the Sun are called ________. Options: giants, supergiants, small, tiny, medium, large, dim, bright.

Back

giants, supergiants.

Front

What determines how bright a star appears from Earth?

Back

Distance and luminosity.

Front

A _________ is a sphere of hot gases that gives off light and heat.

Back

star

Answer explanation

A star is a sphere of hot gases that gives off light and heat, making it the correct choice for this question.

Front

Stars are characterized by their size, color, and _____.

Back

temperature

Answer explanation

Stars are characterized by their size, color, and temperature, making temperature the correct choice.

Front

The color of a star depends on the temperature of its surface.

Back

temperature

Answer explanation

The color of a star depends on the temperature of its surface, not its size. The temperature determines the wavelength of light emitted, which affects the color.

Front

A light-year is the distance light travels in one year.

Back

one

Answer explanation

A light-year is the distance light travels in one year, making the correct answer choice 'one'.

Front

Why can't we see other stars when the sun is out?

Back

The sun is too bright.

Answer explanation

We cannot see other stars when the sun is out because the sun is too bright.