Basic Knowledge
The force that pulls matter towards the center of mass.
What is gravity?
The creator of the theories of relativity.
Who is Albert Einstein?
The distance from Earth to the Sun.
What is 93 million miles or 1 AU?
When a star dies, it can turn into these three things (primarily).
What are black holes, neutron stars, and white dwarfs?
Who was the first scientist to theorize gravity?
Who was Sir Isaac Newton?
The five types of kinetic energy.
What are thermal, radiant, mechanical, sound, and electrical energy?
The two types of relativity.
What are special and general relativity?
The form of matter are stars made of.
What is plasma (super ionized gas)?
The infinitely dense center of a black hole.
What is a singularity?
70% of the universe is composed of this.
What is dark energy?
Newton's third law.
What is "Every action has an equal, opposite reaction."
This means that when an object exerts a force, the other object exerts an equal force back.
Ex. You pull on Earth with the same force it pulls on you, but you have less mass.
The 4 dimensions' official name.
What is spacetime?
The way stars form.
What are thick, hot clouds of hydrogen condensing due to gravity?
The cause of the existence of many neutrons in neutron stars.
What is the density of the star forcing protons and electrons into neutrons?
The warped or double appearance based on the movement of light around an object.
What is gravitational lensing?
The theory the E = mc2 originated from.
What is relativity?
The person that would age slower if two people stood at both the poles and the equator.
What is the person at the equator?
The force pushing against gravity in a star's core.
What is nuclear fusion?
The difference between a star collapsing into a neutron star and a black hole.
What the mass of the star?
(If the star has 1-3 solar masses, neutrons can overcome gravity, creating a neutron star.)
(If the star has more solar masses, gravity will be too strong and the star will collapse into a black hole.)
The similarity and difference between dark matter and dark energy.
What is not interacting with light, but dark matter is attractive and dark energy is repulsive?
When an atom emits high energy particles due to the imbalance of protons to neutrons.
What is radioactivity?
The universal speed limit and hypothetical particles that can exceed it, basically traveling back in time.
What is the speed of light and tachyons?
A supermassive black hole at the centers of galaxies that feed on gas and dust.
What are quasars?
The antimatter electrons (positrons) emitted from Nickel-56 (a radioactive isotope) annihilating electrons that hold up the black dwarf.
What is the cause of death of black dwarfs?
The opposing force of gravity.
What is dark energy?