Lecture 4 Flashcards
1
Q
energy
A
ability to do things
1
Q
low energy
A
can’t do something
2
Q
high energy
A
has the potential to do something
3
Q
stuck in a rut
A
system can have the potential to do something but needs energy
4
Q
potential energy
A
look at the diagram
5
Q
attractive force
A
makes things closer, pushes to 0
6
Q
repulsive forces
A
pushes things away
7
Q
potential well
A
energy dip vs distance graph
is something enters it, it ends up at the bottom
energy is needed to get it out of the potential well
8
Q
balls
A
governed by gravitational potential energy
9
Q
atoms
A
governed by electrostatic potential
10
Q
electrostatic potential
A
within an atom
positive nucleus, electrostatic attraction
11
Q
coulomb’s law
A
F = q1 x q2/ 4πE0r^2
12
Q
F
A
force between particles
13
Q
q1 and q2
A
charges on particles
14
Q
E0
A
constant
