Molecular vibrations Flashcards
1
Q
What is the 1st law
A
Inertia - everybody continues in state of rest or of uniform motion in a right line, unless its compelled to change state by forces acting upon it
2
Q
What is the 2nd law
A
Force = mass x acceleration
3
Q
What is the 3rd law
A
Action = reaction (forces are equal but opposite - conservation of motion)
4
Q
What is ‘Work’
A
If a body moves as a result of force being applied, force is said to be doing ‘Work’ on the body
5
Q
What is Lagrange’s equation of motion
A
Goal is to know the time and position of derivatives E(kin) and E(pot)
6
Q
What is the lagrangian equation
A
L = (Ekin - Epot)
7
Q
Motions of molecules
A
Move and vibrate
8
Q
What is force proportional to
A
Extension or compression
9
Q
What does Ekin=
A
1/2mv^2
10
Q
What does Epot=
A
-1/2Kx^2
