Quiz 18: Stars & Galaxies

What is the hr diagram?

• A diagram that shows the grouping of stars in galaxies

• A diagram that shows the distance of stars from Earth

• A diagram that shows the life cycle of stars

• A diagram that shows the brightness and color of stars

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

• Red stars are hotter than blue stars

• Red stars and blue stars have the same temperature

• The color of a star does not indicate its temperature

• Blue stars are hotter than red stars

How do astronomers determine the distance of stars?

• By observing the pulsation of certain stars

• By sending probes to the stars

• By bouncing radio waves off the stars

• By measuring the brightness of the stars

What is the luminosity of a star?

• The apparent brightness of a star

• The intrinsic brightness of a star

• The color of a star

• The distance of a star from Earth

What is the hertzsprung-russell diagram?

• A graph of the age versus the mass of stars

• A graph of the color versus the size of stars

• A graph of the distance versus the luminosity of stars

• A graph of the intrinsic brightness versus the surface temperature of stars

What is the significance of constellations in astronomy?

• They provide names for stars

• They represent the life cycle of stars

• They indicate the age of stars

• They help determine the distance of stars

What is the relationship between the frequency and wavelength of light?

• Frequency and wavelength are inversely proportional

• Frequency and wavelength are not related

• Higher frequency corresponds to shorter wavelength

• Higher frequency corresponds to longer wavelength

Tags

NGSS.HS-PS4-1

What is the role of the North Star in navigation?

• It indicates the direction of the South Pole

• It indicates the direction of the North Pole

• It helps determine the distance of stars

• It helps determine the temperature of stars

What is the relationship between the altitude to the North Star and the northern latitude?

• The altitude is always equal to the northern latitude

• The altitude is half of the northern latitude

• The altitude is double the northern latitude

• The altitude is unrelated to the northern latitude

What is the purpose of measuring the apparent brightness and luminosity of stars?

• To determine the distance of stars

• To classify stars based on their size

• To understand the temperature of stars

• To study the life cycle of stars