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Physics Comp Review
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Gravity
Terms in this set (23)
Acceleration
a= Δv/ Δt (m/s2) a=(Vf-Vi)/Δt
Series circuit
a series circuit is set up so that the current goes through each circuit element in order, one at a time
"series"
the word "series" means one after the other
Series (formula)
Is = I1 = I2 = I3
Vs = V1 + V2 + V3
Assuming conservation of charge
Assuming conservation of charge
Is x Req = I1R1 + I2R2 + I3R3
Req = equivalent, how much resistance the battery sees
Req = R1 + R2 + R3
Q
Charge, C, Coulombs
E
Electric Field, (N/C, V/m)
Fe
Electric Force, N , Newtons
U
Electric Potential energy, J, Joules
V
Voltage (Potential Difference), V, Volts
I
Current A, amps
R
Resistance, Ω, Ohms
P
Power, W, Watts
Fe (formula) Electric Force
Fe= EQ
E (formula) Electric field
E =kQ/r2 (square)
U (formula) Blomb's Law, Electric potential Energy (J, Joules)
U = kQ1Q2/r = Fe x r
V (formula) voltage
V= kQ/r
I (formula) current (A, Amps)
I= Q/t
V (formula) voltage (V, volts)
V = IR (i- current, R- resistance)
P (formula) power (W, watts)
P = IV
P = I2(square) R
P = V2(square)/R
Parallel
Is = I1+I2+I3
All circuits
Ps = P1 + P2 + P3
VsIs = V1I1 + V2I2 + V3I3
Only Parallel
Vs(I1+I2+I3) = V1I1 + V2I2 + V3I3
Vs = V1 = V2 = V3
Vs/Rtot = V1/R1 + V2/R2 + V3/R3 → 1/Rtot = 1/R1 +1/R2 + 1/R3
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