Astrophysics Guided Notes Chps. 3-4

Vocabulary flashcards covering the Universal Law of Gravitation and related variables from Chapters 3-4 astrophysics guided notes.

Universal Law of Gravitation

The law developed by Isaac Newton stating that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of the masses of the particles and inversely proportional to the square of the distance between their centers.

Isaac Newton

The scientist who developed the Universal Law of Gravitation.

Universal Law of Gravitation Equation

$Fg = G \negthinspace \binom{M1 \negthinspace \times \negthinspace M2}{r^2}$ or $Fg = G \negthinspace \binom{m1 \negthinspace \times \negthinspace m2}{r^2}$

$$Fg$$

Force of Gravity in the Universal Law of Gravitation equation.

$$G$$

Newton's Gravitational constant.

$$m1, m2$$

Mass of the particles in the Universal Law of Gravitation equation.

$$r$$

Radius or distance between the centers of particles in the Universal Law of Gravitation equation.

Cool dark galactic cloud

A galactic cloud with a temperature of $60\thinspace K$ ($-351.6^\text{o}F$) associated with radio waves.