antimatter bananas big bang big rip
black holes electromagnetic galaxies gravitational
mass protons quarks rotation
strong nuclear weak nuclear
Atoms are made up of electrons, neutrons, and ______________.
Electrons are very very small. Electrons are so small that they effectively have no inside. Protons and neutrons are larger. Protons and neutrons are made up of ____________.
The positron is the opposite of the electron. The positron has the same size and mass as the electron, but the opposite charge. The positron is made of matter which also the opposite of the matter from which an electron is made. When a positron and electron collide, they annihilate each other. The positron is an example of ______________________.
There are only four forces. The four forces are:
__________________________
______________________________
____________ ______________
________ ______________
The Higgs boson would provide an explanation of why matter has ________.
Vera Rubin studied the rotation speed of ________________.
In Vera Rubin's study did stars farther from the center orbit more slowly as predicted by Newton's laws? ____
When Carlos Frenk ran computer simulations of the universe, galaxies failed to form until dark matter was:
removed
one fifth the amount of visible matter
equal to the amount of visible matter
five times the amount of visible matter
Does dark matter interact with itself? _____
Saul Perlmutter was studying the rate of expansion of the universe. Perlmutter found that the universe is...
... expanding at a rate that is decreasing over time
... expanding at a constant rate over time
... expanding at a rate that is increasing over time
Phantom energy is a hypothetical form of dark energy that is even more potent than the cosmological constant at increasing the expansion of the universe. The remarkable feature is that phantom energy possesses a negative kinetic energy. If it exists, it could cause the expansion of the universe to accelerate so quickly that a scenario known as the ______ ______ would occur.
Does a site swap throw of 3 land in the same hand or the other hand?
Use arrows to trace the path for the "balls" below for the site swap equation 3 and 51
3: • ◦ ❖
___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
R L R L R L R L R L R L
51: • ◦ ❖
___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
R L R L R L R L R L R L