Earth Science First Quarter Reviewer

What is the big bang theory?

• A theory that states that the universe is expanding, having originated from a singularity.

• A theory that states that the universe started in a large mass and then imploded to form everything.

• A theory that states that the universe was created due to an explosion happened around 14 billion years ago.

• A theory that states that the universe is slowly coming back to a center.

What is nebular hypothesis?

• Swirling currents of fluid, such as water, air, or gas which eventually led to the creation of the sun and planets.

• Earth collided with a small planet, producing moon.

• Planets and moons were wandering around and were captured by the sun.

• Two stars collided and formed planets and moon.

A model of the universe in which Earth is at the center of the revolving planets and stars. This includes the sun revolving around the Earth. This model is no longer supported.

• Geocentric

• Heliocentric

• Nebular

The red-shift in the spectral lines of light, reaching us from other galaxies implies that these galaxies ____________.

• 
  are moving closer to one anothe

• qre moving farther apart from one another

• are slowly coming back to a center.

• are in rapid rotation

Which is NOT one of the fundamental forces that separated during the early stages of the Big Bang? 

• Weak Force

• Gravitational Force

• Centrifugal force 

• Electromagnetic Force

What are Nebular Clouds?

• an increase (or decrease) in the frequency of sound, light, or other waves

• is the galaxy that contains our Solar System

• an interstellar cloud of dust, hydrogen, helium and other ionized gases

• a particle attracts every other particle in the universe

It is the modification of the Big Bang theory, in which an expanding universe eventually reverses and collapses back to a Big Crunch before starting to expand again, forming one cycle of an endless series.

• BIg bang Theory

• Oscillating theory

• Big Crunch Theory

• Cyclic Model

Weak radiation in space that is left over from the first stages of the Big Bang that theoretically

created the universe.

• Cosmic Background Radiation

• Singularity

• Red shift

• Weak Force

Why is it the Big Bang theory is the most accepted theory in the origin of the universe?

Because of the evidences ___________ and _________.

• 
  Blue shift; Atomic Background Radiation

• 
  Blue shift; Cosmic Background Radiation

• Red shift; Cosmic Background Radiation

• 
  Red shift; Atomic Background Radiation

During the earliest moments of the Big Bang, the superunified force existed.

What happened to this force as the universe expanded and cooled?

• It broke into the four fundamental forces: gravity, electromagnetism, the strong nuclear force, and the weak nuclear force.

• It was replaced entirely by the gravitational force.

• It split into two forces: gravity and electromagnetism.

• It remained a single force, governing all interactions in the universe.