First Term Exam Review - Space Science

Front

What is the Big Bang Theory?

Back

The Big Bang Theory states that all of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

Front

What is the Heliocentric Model?

Back

The Heliocentric Model is the astronomical model in which the Earth and planets revolve around the Sun at the center of the solar system.

Front

List the planets in order from the Sun.

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Front

Which celestial body has the greatest effect on Earth's tides?

Back

The Moon has the greatest effect on Earth's tides.

Front

What does a blue shift in a star's light indicate?

Back

A blue shift indicates that the star is moving towards the observer.

Front

What is a singularity in the context of the Big Bang?

Back

A singularity is a point in space where density and gravity are thought to be infinite, and it is where the universe began.

Front

What is the difference between the Geocentric and Heliocentric models?

Back

The Geocentric model places the Earth at the center of the universe, while the Heliocentric model places the Sun at the center.

Front

What is the role of gravity in the formation of planets?

Back

Gravity pulls together gas and dust in space to form planets.

Front

What is the significance of the Doppler effect in astronomy?

Back

The Doppler effect helps astronomers determine whether an object in space is moving towards or away from Earth based on the shift in light frequency.

Front

What are the inner planets of the solar system?

Back

The inner planets are Mercury, Venus, Earth, and Mars.