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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.
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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. pressure
nSintheta=nsintheta
F/A
KI/r
V = (Vo) + at

2. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
nSintheta=nsintheta
qV
no heat flow
qVB

3. formula for charge stored in a capciator
E/B
G M/((d/2)^2)
Q=CV
V = (Vo) + at

4. focal length of a mirror with radius d
(V^2)/r
d/2
elastic collision
BA

5. electric potential a distance r from a charge
V+IR
d/2
KQ/r
(1/Do) + (1/Di) = (1/f)

6. formula for torque
(Wnet)/(Qin)
rF
.5CV^2 or .5 Q^2/C or .5QV
h/wavelength

7. heat required to change temperature of a substance
((Qin) -(Qout))/(Qin)
no force (right hand rule)
MC(deltaT)
mV -m(Vo)

8. formula for power with Voltage and resistance
m(v^2)/qvB
(V^2)/R
FV
(1/Do) + (1/Di) = (1/f)

9. energy of a photon if wavelength is known
deltaU -deltaW
(EMF)Rt/10
hc/wavelength
opposite motion

10. what direction is friction?
2nt=mwavelength
opposite motion
h/mv
(I^2)RT

11. formula for centripetal acceleration
(Fn)(mu)
h(Fo)
(V^2)/r
qV

12. heat required to melt a substance
roeVg
no heat flow
(I^2)R
M(Lf)

13. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
e=mc^2
V^2=(Vo)^2 +2a*change in x
pL/A
E/B

14. formula for critical angle
hc/wavelength
deltaU -deltaW
(N2)/(N1)
inelastic collision

15. work energy theorum
constant volume
pL/A
((Qin) -(Qout))/(Qin)
net work = delta K

16. formula equating energy and mass
deltaU -deltaW
d/2
G M/((d/2)^2)
e=mc^2

17. second kinematic
1/2wavelength
delta x = (Vo)t + .5at^2
qE
-KA

18. resistance of a wire
pL/A
VI
constant volume
deltaU = deltaQ + deltaW

19. the units of power other than watts
joules/second
(Wnet)/(Qin)
E/B
V = (Vo) + at

20. formula for impulse involving momentum
deltaU -deltaW
mV -m(Vo)
(No)(wavelength)=(Nn)(new wavelength)
sqrt(3KT/m)

21. formula for finding magnetic flux
joules/second
0
.5KA^2
BA

22. adibatic
FV
(hc/wavelength)=h(Fo) +(Vs)
Columbs/second
no heat flow

23. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
(V^2)/r
m(v^2)/qvB
(V^2)/R

24. magnification equation
deltaU = deltaQ + deltaW
(No)(wavelength)=(Nn)(new wavelength)
(Di)/(Do) or (Hi)/(Ho)
net work = delta K

25. heat during an isometric process
1/((1/C)+(1/C)..........)
n(Cv)(deltaT)
opposite motion
deltaU = deltaQ + deltaW

26. formula to find the absoluate pressure at the bottom of a pool
(V^2)/R
(Patm) + (Pgauge)
no heat flow
2Pi * sqrt(l/g)

27. velocity of a molecule of gas
deltaU = deltaQ + deltaW
n(Cv)(deltaT)
sqrt(3KT/m)
no heat flow

28. type of collision where K is not conserved
1/2wavelength
(Di)/(Do) or (Hi)/(Ho)
inelastic collision
joules/second

29. new frequency of light as it enters a new substance
frequency never changes for light problems
roegh
(N2)/(N1)
(EMF)Rt/10

30. formula to find the gauge pressure at the bottom of a pool
L -LCostheta
V^2=(Vo)^2 +2a*change in x
roegh
2Pi * sqrt(l/g)

31. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(Wnet)/(Qin)
(hc/wavelength)=h(Fo) +(Vs)
KI/r
no temp change

32. change in internal energy during a cyclic process
n(Cv)(deltaT)
constant volume
J= Ft
0

33. isometric
d/2
constant volume
m(v^2)/qvB
Columbs/second

34. the electric force between two objects of charge Q
J= Ft
deltaU = deltaQ + deltaW
Columbs/second
K |q||Q|/r^2

35. velocity of waves on a string if tension is known
.5KA^2
(V^2)/R
sqrt(T/(m/))
(I^2)R

36. formula relating voltage and electric field
Ed=V
-KA
no force (right hand rule)
h(Fo)

37. force of frction on an incline
mgCostheta(mu)d
G M/((d/2)^2)
-KA
(Di)/(Do) or (Hi)/(Ho)

38. type of collision where K is conserved
elastic collision
(Fn)(mu)
constant volume
.5CV^2 or .5 Q^2/C or .5QV

39. natural frequency of a closed tube of length L
AV=(A2)(V2)
1/4wavelength
constant pressure
J= Ft

40. formula for period of a pendulum
2Pi * sqrt(l/g)
2nt=mwavelength
(V^2)/R
1/4wavelength

41. the units of current other than amps
Columbs/second
pL/A
L -LCostheta
(I^2)R

42. formula for power with current and voltage
(Patm) + (Pgauge)
m(v^2)/qvB
roegh
VI

43. formula for change in internal energy in a cosnstat volume PV process
MC(deltaT)
(3/2)nRdeltaT
Q=CV
n(Cv)(deltaT)

44. force of friction
(Fn)(mu)
AV=(A2)(V2)
qE
V^2=(Vo)^2 +2a*change in x

45. heat during a cyclic process (net heat)
deltaU = deltaQ + deltaW
E/B
deltaU -deltaW
roegh

46. voltage induced in a rod moving through a uniform magnetic field
BLv
dSintheta=mwavelength
no force (right hand rule)
d/2

47. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
(hc/wavelength)=h(Fo) +(Vs)
nSintheta=nsintheta
.5KA^2

48. equation for the first law of thermodynamics
0
roeVg
deltaU = deltaQ + deltaW
opposite motion

49. the force on a charge moving parallel to a magnetic field
constant volume
V+IR
1/2wavelength
no force (right hand rule)

50. equation of continuity
AV=(A2)(V2)
V+IR
MC(deltaT)
constant pressure