1.1.1 Earth Science

Front

What is the smallest astronomical unit among Solar System, Galaxy, and Universe?

Back

Solar System

Front

What is the name of our galaxy?

Back

Milky Way

Front

Which theory describes the beginning of the Universe?

Back

The Big Bang Theory

Front

What does Kepler's 2nd Law state?

Back

A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.

Front

Why do some constellations appear more prominently in winter than in summer?

Back

Because of Earth revolving around the sun.

Front

What is the definition of a galaxy?

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

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.

Front

What is the Nebular Hypothesis?

Back

The Nebular Hypothesis is a model that describes the formation of the solar system from a cloud of gas and dust.

Front

What is the difference between a solar system and a galaxy?

Back

A solar system consists of a star and the celestial bodies that orbit it, while a galaxy is a collection of billions of stars and their solar systems.

Front

What is the significance of the Big Bang Theory?

Back

It explains the origin of the universe and the expansion of space.