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AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. lens/mirror equation
qE
e=mc^2
dSintheta=mwavelength
(1/Do) + (1/Di) = (1/f)

2. first kinematic
V = (Vo) + at
h/wavelength
(N2)/(N1)
((Th) -(Tl))/(Th)

3. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
roeVg
h/mv
qV
2Pi * sqrt(l/g)

4. third kinematic
(Wnet)/(Qin)
1/2wavelength
mgCostheta(mu)d
V^2=(Vo)^2 +2a*change in x

5. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
inelastic collision
0
(Di)/(Do) or (Hi)/(Ho)

6. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
joules/second
roeVg
(Wnet)/(Qin)
.5mV^2 + .5KA^2

7. adibatic
frequency never changes for light problems
qrB/m
no heat flow
J= Ft

8. type of collision where objects stick togerther
h(Fo)
sqrt(T/(m/))
perfectly inelastic collision
qVB

9. energy stored in a capacitor
FV
.5CV^2 or .5 Q^2/C or .5QV
E/B
elastic collision

10. electric potential a distance r from a charge
FV
KQ/r
(No)(wavelength)=(Nn)(new wavelength)
perfectly inelastic collision

11. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
Columbs/second
e=mc^2
(hc/wavelength)=h(Fo) +(Vs)

12. radius of curvature of a charged particle as it enters a uniform magnetic field
qVB
2nt=mwavelength
m(v^2)/qvB
mgCostheta(mu)d

13. total capacitance of capacitors in series
1/2wavelength
deltaU -deltaW
constant volume
1/((1/C)+(1/C)..........)

14. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
2nt=mwavelength
(I^2)RT
sqrt(3KT/m)
mV -m(Vo)

15. formula for period of a pendulum
2Pi * sqrt(l/g)
joules/second
opposite motion
(Patm) + (Pgauge)

16. natural frequency of a closed tube of length L
1/4wavelength
F/A
J= Ft
qrB/m

17. units for voltage other than volts
MC(deltaT)
mgCostheta(mu)d
2Pi * sqrt(l/g)
Joules/Columb

18. heat during a cyclic process (net heat)
deltaU -deltaW
e=mc^2
E/B
.5CV^2 or .5 Q^2/C or .5QV

19. formula for power with current and voltage
e=mc^2
AV=(A2)(V2)
VI
1/((1/C)+(1/C)..........)

20. formula for impulse involving momentum
h/mv
.5mV^2 + .5KA^2
mV -m(Vo)
BA

21. velocity of a molecule of gas
VI
mV -m(Vo)
sqrt(3KT/m)
.5KA^2

22. magnification equation
(Di)/(Do) or (Hi)/(Ho)
-KA
VI
KQ/r

23. resistance of a wire
rF
pL/A
KI/r
joules/second

24. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
net work = delta K
E/B
(V^2)/r
1/((1/C)+(1/C)..........)

25. formula for critical angle
sqrt(3KT/m)
pL/A
(N2)/(N1)
qrB/m

26. formula for efficiency of a heat engine using work out
(Wnet)/(Qin)
MC(deltaT)
roegh
2Pi * sqrt(l/g)

27. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
KI/r
BA
perfectly inelastic collision

28. heat required to melt a substance
J= Ft
M(Lf)
elastic collision
(V^2)/r

29. change in internal energy during a cyclic process
qrB/m
(Di)/(Do) or (Hi)/(Ho)
1/4wavelength
0

30. equation of continuity
VI
AV=(A2)(V2)
h/mv
KQ/r

31. isobaric
BA
constant pressure
qE
joules/second

32. formula relating voltage and electric field
d/2
no temp change
Ed=V
h/wavelength

33. energy of a photon if wavelength is known
VI
no temp change
F/A
hc/wavelength

34. formula for power with Voltage and resistance
(V^2)/R
Columbs/second
BA
constant pressure

35. formula for centripetal acceleration
no heat flow
(V^2)/r
Ed=V
mV -m(Vo)

36. second kinematic
(N2)/(N1)
(EMF)Rt/10
(Di)/(Do) or (Hi)/(Ho)
delta x = (Vo)t + .5at^2

37. what direction is friction?
qV
opposite motion
L -LCostheta
VI

38. the units of power other than watts
no temp change
Q=CV
joules/second
roegh

39. new frequency of light as it enters a new substance
Q=CV
k|Q|/r^2
frequency never changes for light problems
(I^2)RT

40. work energy theorum
net work = delta K
(1/Do) + (1/Di) = (1/f)
qrB/m
sqrt(T/(m/))

41. formula for finding the work function of a metal if the cutoff frequency is known
F/A
qE
h(Fo)
KI/r

42. formula for impluse involving time
deltaU = deltaQ + deltaW
(V^2)/R
dSintheta=mwavelength
J= Ft

43. the electric force between two objects of charge Q
V+IR
sqrt(3KT/m)
K |q||Q|/r^2
-KA

44. EMF of a battery having internal resistance R
(I^2)RT
V+IR
sqrt(3KT/m)
joules/second

45. formula for Carnot efficiency
E/B
VI
deltaU = deltaQ + deltaW
((Th) -(Tl))/(Th)

46. the units of current other than amps
d/2
Columbs/second
(Di)/(Do) or (Hi)/(Ho)
L -LCostheta

47. velocity of waves on a string if tension is known
e=mc^2
MC(deltaT)
(V^2)/R
sqrt(T/(m/))

48. isometric
VI
((Qin) -(Qout))/(Qin)
KQ/r
constant volume

49. type of collision where K is conserved
elastic collision
BA
roegh
joules/second

50. forgotten power equation
FV
K |q||Q|/r^2
Q=CV
(EMF)Rt/10