Universe Review

A diagram of the electromagnetic spectrum is shown.

• Radio wave detectors

• Microwave detectors

• X-ray detectors

• Infrared wave detectors

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

Which statement accurately describes where Earth’s solar system is located?

• In the center of the spiral-shaped Milky Way galaxy

• On an outer arm of the spiral-shaped Milky Way galaxy

• In the center of the irregular-shaped Andromeda galaxy

• On an outer arm of the irregular-shaped Andromeda galaxy

A star that is dimmer than the sun with a surface temperature of 20,000 K would most likely be classified as -

• a main sequence star

• a supergiant

• a white dwarf

• a giant

Which statement correctly describes the life cycle of a star?

• A star’s formation begins in the main sequence.

• A star’s life cycle is determined by its mass.

• A supergiant becomes a main-sequence star as it loses mass.

• A high-mass star will eventually turn into a white dwarf.

Tags

NGSS.HS-ESS1-3

Most stars belong to one of the four categories shown on the Hertzsprung-Russell diagram. Which statements correctly describe stars on the Hertzsprung-Russell diagram? Select TWO correct answers.

• A star with a luminosity of 1 and a surface temperature of 5,500 K is a main-sequence star.

• In the main sequence, a star’s luminosity decreases as its temperature increases.

• A star with a luminosity of 10⁶ and a surface temperature of 10,000 K is a white dwarf.

• In the main sequence, a star’s luminosity increases as its temperature increases.

• A star with a luminosity of 10⁶ and a surface temperature of 20,000 K is dimmer and hotter than the sun.

Tags

NGSS.HS-ESS1-3

The diagrams below represent two electromagnetic waves that are traveling at the same speed. Which statement correctly compares the characteristics of Wave A and Wave B?

• A. Wave A has a greater amplitude, while Wave B has a higher frequency.

• B. Wave A has a longer wavelength, while Wave B has a lower amplitude.

• C. Wave A has a higher frequency, while Wave B has a longer wavelength.

• D. Wave A has a lower frequency, while Wave B has a greater amplitude.

Tags

NGSS.HS-PS4-1

A Hertzsprung-Russell diagram can be divided into quadrants to help classify stars based on their luminosity and surface temperature. Which quadrant on the diagram includes the brightest and hottest stars?

• A. Section 1

• B. Section 2

• C. Section 3

• D. Section 4

In December 2021 a celestial object made a close approach to Earth when it came within 21 million miles of the planet. Using a telescope, astronomers observed the object moving across Earth’s sky and noticed it was small, bright, and had a fan-shaped tail. Which type of object was most likely observed?

• A supernova

• A meteoroid

• An asteroid

• A comet

Betelgeuse is a star in the Milky Way galaxy and is located 550 light-years from Earth. It has a surface temperature of approximately 3,800 K. Based on this information, what spectral class does Betelgeuse belong to?

• O

• B

• G

• M

The Milky Way galaxy is a spiral-shaped galaxy that is made up of billions of stars. Which location represents the sun’s position in the Milky Way galaxy?

• Location W

• Location X

• Location Y

• Location Z

Tags

NGSS.MS-ESS1-2