Physics Equations Flashcards
1
Q
Kinematics
vf =
A
vf = v0 + a∆t
2
Q
Kinematics
(vf)^2 =
A
(vf)^2 =(v0)^2 + a∆x
3
Q
Kinematics
∆x =
2 equations
A
∆x = v0∆t +1/2at^2
∆x = v∆t
4
Q
Torque
t =
A
t = r F sin(theta)
Positive = counterclockwise
Negative = clockwise
5
Q
Newton’s LAw
Fnet =
A
Fnet = ma
6
Q
Centripetal Force
Fc =
A
Fc = mv^2/r
7
Q
Energy
U = PE =
A
mgh
8
Q
Energy
KE =
A
KE = 1/2mv^2
9
Q
Energy
U = Elastic PE =
A
U = 1/2kx^2
10
Q
Work
W =
A
W = Fd = Fdcos(theta)
11
Q
Work
P =
A
P = W/∆t
Units: J/s = Nm/s = Kgm^2/s^2
12
Q
Mechanical Advantage
MA = Mechanical Advantage =
inclined plane
A
MA = length of incline/height of incline
13
Q
Mechanical advantage
MA = Efficiency
A
MA = F_out/F_in
14
Q
Laws of Thermodynamics
∆L =
∆V =
0th Law : Thermal Expansion
A
∆L = alpha L ∆T
∆V = beta V ∆T
15
Q
Laws of Thermodynamics
q =
heat
A
q = mc∆T
