Astrology Mid Term

Front

What is Hubble's Law?

Back

Hubble's Law states that the farther away a galaxy is, the faster it is moving away from us, indicating that the universe is expanding.

Front

What happens to the universe if gravity is stronger?

Back

If gravity were stronger, everything would be in black holes, as the gravitational pull would be too strong for stars and planets to form.

Front

What are the zodiac constellations?

Back

The zodiac constellations are a group of 13 constellations that appear along the ecliptic and are associated with different months throughout the year.

Front

What occurs to light when it passes by a large gravitational field?

Back

Light bends when it passes by a large gravitational field due to the curvature of space-time.

Front

Who proved that other galaxies exist beyond the Milky Way?

Back

Edwin Hubble proved that other galaxies exist beyond the Milky Way.

Front

Define the term 'ecliptic'.

Back

The ecliptic is the apparent path of the Sun across the sky, which also defines the plane of the Earth's orbit around the Sun.

Front

What is the significance of the Celestial Sphere in astronomy?

Back

The Celestial Sphere is an imaginary sphere surrounding Earth, where all celestial bodies appear to be projected, helping in mapping the positions of stars and constellations.

Front

Explain the concept of gravitational lensing.

Back

Gravitational lensing occurs when a massive object (like a galaxy) bends the light from a more distant object, allowing us to see objects that would otherwise be hidden.

Front

What is the role of dark matter in the universe?

Back

Dark matter is a form of matter that does not emit light or energy, and it is believed to make up about 27% of the universe, influencing its structure and expansion.

Front

What is a light-year?

Back

A light-year is the distance that light travels in one year, approximately 5.88 trillion miles (9.46 trillion kilometers).