19 Stars Astronomy Quiz

What can scientists infer about a star based on its color?

• A) The star's distance from Earth

• B) The star's temperature

• C) The star's age

• D) The star's size

Which color of star is the hottest according to the text?

• A) Red

• B) Yellow

• C) Blue

• D) White

What are the primary elements that make up a star?

• A) Oxygen and Carbon

• B) Hydrogen and Helium

• C) Nitrogen and Sulfur

• D) Iron and Silicon

Why is it difficult for scientists to study stars directly?

• A) Stars are too bright

• B) Stars are too small

• C) Stars are too far away

• D) Stars do not emit light

What does the light from stars allow scientists to determine about the stars themselves?

• The age of the stars

• The elements that make up the stars

• The distance of the stars from Earth

• The temperature of the stars

What is a spectrum?

• A machine used by scientists to view starlight

• A type of light emitted by stars

• A rainbow of colors that make up light, including red, orange, yellow, green, blue, indigo, and violet

• A specific type of star

What device do scientists use to break up a star's light into a spectrum?

• Telescope

• Spectrometer

• Spectrograph

• Microscope

What type of spectrum shows the elements present in a star?

• Continuous spectrum

• Absorption spectrum

• Emission spectrum

• Reflection spectrum

How are stars classified today?

• By the elements they contain

• By their distance from Earth

• By their temperature and brightness

• By their size

According to the new system of classifying star brightness, what does a smaller magnitude number indicate?

• The star is dimmer.

• The star is of medium brightness.

• The star is brighter.

• The star's brightness cannot be determined.