ESS1.1 and ESS1.2 Universe Expansion and Gravity Flashcard Review

Front

What did our Balloon Lab provide evidence for?

Back

Celestial objects are moving away from each other.

Tags

NGSS.HS-ESS1-2

Front

Gravity attracts all objects towards one another. True or False?

Back

True

Tags

NGSS.HS-PS2-4

Front

Red-Shift: Light moving _____

Back

Away from the observer.

Tags

NGSS.HS-ESS1-2

Front

What is the path a planet follows as it moves around the sun?

Back

Orbit/Revolution.

Tags

NGSS.HS-ESS1-4

Front

The more that the spectral lines of a star are shifted to the red end of the spectrum, what does it indicate?

Back

The faster it is moving away from us.

Tags

NGSS.HS-ESS1-2

Front

What is the definition of gravity?

Back

A force that attracts two bodies towards each other.

Tags

NGSS.HS-PS2-4

Front

What is the significance of the Big Bang Theory?

Back

It explains the origin of the universe and its expansion.

Tags

NGSS.HS-ESS1-2

Front

What does the term 'expansion of the universe' refer to?

Back

The increase in distance between galaxies over time.

Tags

NGSS.HS-ESS1-2

Front

What is a light-year?

Back

The distance that light travels in one year.

Front

What is the Doppler Effect?

Back

The change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.

Tags

NGSS.HS-PS4-1