Big Bang Theory and Evidence

Front

What does the red shift in light from distant galaxies indicate?

Back

The red shift indicates that the stars are moving away from the Milky Way.

Front

What is the significance of red shift in the context of the universe?

Back

Red shift suggests that the universe is expanding.

Front

What does a blue shift in light from a star indicate?

Back

A blue shift indicates that the star is moving toward us.

Front

What evidence does cosmic background radiation provide?

Back

Cosmic background radiation provides evidence of the Big Bang.

Front

What is the relationship between the Doppler effect and the movement of stars?

Back

The Doppler effect describes how the wavelength of light changes based on the movement of stars relative to Earth.

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation for the origin of the universe, suggesting it began from a singular point and has been expanding ever since.

Front

How does the temperature of a star relate to its light spectrum?

Back

The temperature of a star affects its light spectrum; hotter stars emit light that is more blue-shifted.

Front

What is the role of light spectra in astronomy?

Back

Light spectra help astronomers determine the composition, temperature, and movement of stars.

Front

What does it mean if a star's light spectrum shows a red shift?

Back

It means the star is moving away from Earth.

Front

What is the significance of observing a blue shift in a star's light?

Back

It indicates that the star is moving toward Earth.