Physics Flashcards
convection
Transfer of E via heat by movement of liquid
conduction
flow of E from higher temp to lower
radiation
transfer of E through vacuum
Resistors in series
Rt = r1 + r2
Resistors in parallel
1/rt = 1/r1 + 1/r2
Capacitors in parallel
C = c1+c2
Capacitors in Series
1/C = 1/c1 + 1/c2
Voltage in parallel
V = v1 = v2
Voltage in series
V = v1 +v2
sin30
1/2
cos30
√3/2 = .867
sin0
0
cos0
1
sin45
√2/2 = .707
cos45
√2/2 = .707
sin60
√3/2 = .867
cos60
1/2
sin90
1
cos90
0
Equation for Work
W = FdcosA
Pendulum Period T=
T=2pi√(L/g)
Impulse, J
J= change in momentum
J=Ft
What happens to sound wave as it travels? Eg circle…
E?
I?
Energy remains the same at all d from source of sound, neglecting air resistance.
the Intensity changes …Power = IA A=area of coverage. If P stays same, as A increases, intensity dec
capacitor
stores electric charges with potential difference, V, between them