Cosmology Review

Front

What does the Big Bang Theory state about the universe?

Back

The universe is expanding.

Front

What is the Nebular Theory?

Back

A cloud of spinning gas and dust condensed into the sun and planets.

Front

What does 'Red Shifted' mean in the context of light from distant stars?

Back

It indicates that the light is moving away from us, showing that the universe is expanding.

Front

According to Kepler's laws, which segment of a planet's orbit is traveled the fastest?

Back

The segment closest to the star (Segment X).

Front

What force keeps the planets in orbit around the Sun?

Back

Gravitational force.

Front

What is the significance of the Cosmic Microwave Background Radiation?

Back

It is the afterglow of the Big Bang, providing evidence for the universe's expansion.

Front

What are the main components of the solar system?

Back

The Sun, planets, moons, asteroids, comets, and meteoroids.

Front

What is a light year?

Back

A unit of distance that represents how far light travels in one year.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.

Front

What is the role of gravity in the formation of celestial bodies?

Back

Gravity pulls together gas and dust to form stars and planets.