Light Years, Red Shift and Blue Shift

Front

What is a light year?

Back

The distance light can travel in a year.

Front

What does blue shift indicate about a star's movement?

Back

The star is moving towards the Earth.

Front

What does red shift indicate about a galaxy's movement?

Back

The galaxy is moving away from us.

Tags

NGSS.HS-ESS1-2

Front

What happens to the wavelength of light during red shift?

Back

The perceived wavelength increases.

Tags

NGSS.HS-ESS1-2

Front

What is the blue section of a wave measuring?

Back

Wavelength.

Tags

NGSS.HS-PS4-1

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, including visible light.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Front

What is the significance of redshift in astronomy?

Back

It helps astronomers determine the movement and distance of galaxies.

Tags

NGSS.HS-ESS1-2

Front

What is the significance of blueshift in astronomy?

Back

It indicates that an object is moving closer to the observer.

Tags

NGSS.HS-PS4-1

Front

How does the Doppler effect relate to light?

Back

It describes the change in frequency or wavelength of light from a moving source.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Front

What is the speed of light?

Back

Approximately 299,792 kilometers per second (or about 186,282 miles per second).

Tags

NGSS.MS-PS4-1