What is the Doppler Effect in astronomy?

• The change in frequency of light due to relative motion between source and observer

• The bending of light around massive objects

• The absorption of light by interstellar dust

• The emission of light from hot gases in stars

Tags

NGSS.HS-PS4-3

Which theory describes the beginning of the universe?

• Steady State Theory

• Big Bang Theory

• Oscillating Universe Theory

• Multiverse Theory

Tags

NGSS.HS-ESS1-2

What is spectroscopy primarily used for in astronomy?

• Measuring the distance to stars

• Determining the age of planets

• Analyzing the composition of celestial objects

• Calculating the mass of black holes

Tags

NGSS.HS-ESS1-2

Red shift in astronomy indicates that an object is:

• Moving towards the observer

• Stationary relative to the observer

• Moving perpendicular to the observer

• Moving away from the observer

Tags

NGSS.HS-ESS1-2

Which of the following is NOT a use of spectral lines in astronomy?

• Determining chemical composition of stars

• Measuring the temperature of celestial objects

• Calculating the age of galaxies

• Detecting the motion of celestial objects

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

Blue shift in a star's spectrum suggests that the star is:

• Cooling down

• Expanding

• Moving away from Earth

• Moving towards Earth

What is the primary difference between red shift and blue shift?

• Red shift occurs in hot stars, blue shift in cool stars

• Red shift indicates motion away, blue shift indicates motion towards

• Red shift is caused by gravity, blue shift by light

• Red shift affects visible light, blue shift affects radio waves

Tags

NGSS.HS-ESS1-2

What is the primary evidence supporting the Big Bang Theory?

• The existence of black holes

• The abundance of helium in the universe

• The cosmic microwave background radiation

• The presence of dark matter

Tags

NGSS.HS-ESS1-2

Which of these phenomena can be explained by the Doppler Effect?

• The formation of galaxies

• The expansion of the universe

• The life cycle of stars

• The existence of dark energy

Tags

NGSS.HS-ESS1-2

What does spectroscopy reveal about distant galaxies?

• Their exact distance from Earth

• Their age and evolution

• Their chemical composition and motion

• Their future collision course

Tags

NGSS.HS-ESS1-2