C3 8.8 A,B,C 6.11B Universe

The temperature of a star determines the wavelength of visible light that is produced. The visible part of the electromagnetic spectrum is shown. Stars with the highest temperatures will emit most of their light at wavelengths that are near — 

• red light

• orange light

• green light

• blue light

Tags

NGSS.HS-PS4-1

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41 x 10^9 Hz. An electromagnetic spectrum is shown. The investigators were most likely using a telescope that detects —

• microwaves

• visible light

• x-rays

• gamma rays

Tags

NGSS.HS-PS4-1

A diagram of the electromagnetic spectrum is shown. Earth’s atmosphere blocks short wavelengths of the electromagnetic spectrum. Which telescopes must be placed in orbit around Earth in order to observe short-wavelength radiation?

• Gamma-ray telescopes

• Visible-light telescopes

• Infrared telescopes

• Radio telescopes

Tags

NGSS.HS-PS4-1

There are billions of stars in the Milky Way galaxy that are the same size as the Sun. Based on this information, why does the Sun appear to be the largest star from Earth?

• Because the other stars are not as bright as the Sun

• Because the other stars are not as old as the Sun

• Because the Sun is the farthest star from Earth

• Because the Sun is the closest star to Earth

Which statement best describes the location of the sun in the Milky Way galaxy?

• The sun is located in the center of the spiral-shaped galaxy.

• The sun is located off the center of an elliptical-shaped galaxy.

• The sun is located on an arm of a spiral-shaped galaxy.

• The sun is located on an arm of an elliptical-shaped galaxy.

With the use of the Hubble Space Telescope, scientists recently discovered a giant runaway star. It is 90 times larger than the sun and is very hot and blue-white in color. Why does the sun appear to be brighter than this runaway star when viewed from Earth?

• The sun is a different color than the runaway star.

• The sun is older than the runaway star.

• The sun is closer to Earth than the runaway star.

• The sun is made of different elements than the runaway star.

A Hertzsprung-Russell (H-R) diagram is shown. A star that has a luminosity of 10^-2 and a temperature of 20,000 K is most likely a —

• Main sequence

• White dwarf

• Blue giant

• Red giant

Tags

NGSS.HS-ESS1-3

The Hertzsprung-Russell diagram shown is divided into four sections. Which section of the diagram includes the coolest, brightest stars?

• Section 1

• Section 2

• Section 3

• Section 4

Tags

NGSS.HS-ESS1-3

A Hertzsprung-Russell diagram is shown below. Based on this diagram, which type of stars would belong to spectral class M and have the highest luminosity?

• Main-sequence stars

• Giants

• White dwarfs

• Supergiants

Tags

NGSS.HS-ESS1-3

The Hertzsprung-Russell diagram below shows how the brightness, surface temperature, and color of stars are related. Which of these observations of Barnard’s Star is most likely accurate?

• Barnard’s Star is less bright than the sun, has a surface temperature below 3,800 K, and is red.

• Barnard’s Star is less bright than the sun, has a surface temperature above 3,800 K, and is red.

• Barnard’s Star is brighter than the sun, has a surface temperature below 5,300 K, and is yellow.

• Barnard’s Star is brighter than the sun, has a surface temperature above 5,300 K, and is yellow.

Tags

NGSS.HS-ESS1-3