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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. formula equating energy and mass
e=mc^2
2Pi * sqrt(l/g)
(1/Do) + (1/Di) = (1/f)
0

2. type of collision where K is conserved
qrB/m
(V^2)/r
F/A
elastic collision

3. adibatic
(Patm) + (Pgauge)
(Fn)(mu)
(EMF)Rt/10
no heat flow

4. formula for impulse involving momentum
(I^2)RT
1/((1/C)+(1/C)..........)
mV -m(Vo)
constant volume

5. lens/mirror equation
h/wavelength
d/2
mV -m(Vo)
(1/Do) + (1/Di) = (1/f)

6. formula for power with current and resistance
Joules/Columb
dSintheta=mwavelength
(I^2)R
(1/Do) + (1/Di) = (1/f)

7. natural frequency of a closed tube of length L
constant pressure
qV
1/4wavelength
perfectly inelastic collision

8. what direction is friction?
J= Ft
FV
G M/((d/2)^2)
opposite motion

9. hooke's law force of a spring
J= Ft
BLv
-KA
(Wnet)/(Qin)

10. force of gravity between two objects of mass m
(hc/wavelength)=h(Fo) +(Vs)
e=mc^2
M(Lf)
GM*M/(r^2)

11. formula for Carnot efficiency
(Patm) + (Pgauge)
1/((1/C)+(1/C)..........)
constant pressure
((Th) -(Tl))/(Th)

12. isothermal
((Th) -(Tl))/(Th)
KI/r
no temp change
L -LCostheta

13. formula for change in internal energy in a cosnstat volume PV process
(Fn)(mu)
AV=(A2)(V2)
(3/2)nRdeltaT
frequency never changes for light problems

14. new frequency of light as it enters a new substance
no force (right hand rule)
mgCostheta(mu)d
deltaU -deltaW
frequency never changes for light problems

15. formula to find the gauge pressure at the bottom of a pool
roegh
constant volume
BLv
joules/second

16. energy of a photon if wavelength is known
(V^2)/r
hc/wavelength
1/4wavelength
M(Lf)

17. velocity of a molecule of gas
(V^2)/R
sqrt(3KT/m)
(Di)/(Do) or (Hi)/(Ho)
FV

18. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qV
joules/second
((Th) -(Tl))/(Th)
L -LCostheta

19. formula for charge stored in a capciator
joules/second
Q=CV
K |q||Q|/r^2
1/2wavelength

20. energy stored in a capacitor
deltaU = deltaQ + deltaW
(hc/wavelength)=h(Fo) +(Vs)
.5CV^2 or .5 Q^2/C or .5QV
e=mc^2

21. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)
deltaU -deltaW
pL/A
sqrt(T/(m/))

22. formula for critical angle
(N2)/(N1)
n(Cv)(deltaT)
inelastic collision
1/((1/C)+(1/C)..........)

23. formula relating voltage and electric field
nSintheta=nsintheta
(hc/wavelength)=h(Fo) +(Vs)
Ed=V
qVB

24. formula for impluse involving time
J= Ft
deltaU -deltaW
BA
(3/2)nRdeltaT

25. the electric force between two objects of charge Q
.5mV^2 + .5KA^2
K |q||Q|/r^2
mgCostheta(mu)d
1/2wavelength

26. heat during an isometric process
constant pressure
((Th) -(Tl))/(Th)
2Pi * sqrt(l/g)
n(Cv)(deltaT)

27. formula for energy of a spring mass when spring is at maximum displacement
2Pi * sqrt(l/g)
.5KA^2
sqrt(T/(m/))
(hc/wavelength)=h(Fo) +(Vs)

28. second kinematic
K |q||Q|/r^2
(I^2)R
delta x = (Vo)t + .5at^2
elastic collision

29. type of collision where objects stick togerther
(I^2)R
.5mV^2 + .5KA^2
(1/Do) + (1/Di) = (1/f)
perfectly inelastic collision

30. the force on a charge moving parallel to a magnetic field
h(Fo)
no force (right hand rule)
(EMF)Rt/10
G M/((d/2)^2)

31. forgotten power equation
FV
nSintheta=nsintheta
mgCostheta(mu)d
m(v^2)/qvB

32. formula for power with Voltage and resistance
roeVg
L -LCostheta
(V^2)/R
no heat flow

33. resistance of a wire
net work = delta K
pL/A
dSintheta=mwavelength
(I^2)RT

34. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
K |q||Q|/r^2
no force (right hand rule)
1/((1/C)+(1/C)..........)

35. isometric
KI/r
constant volume
inelastic collision
n(Cv)(deltaT)

36. formula for centripetal acceleration
deltaU -deltaW
n(Cv)(deltaT)
(V^2)/r
BA

37. focal length of a mirror with radius d
d/2
(EMF)Rt/10
KI/r
h(Fo)

38. formula for buoyant force
roeVg
(hc/wavelength)=h(Fo) +(Vs)
opposite motion
MC(deltaT)

39. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(1/Do) + (1/Di) = (1/f)
((Qin) -(Qout))/(Qin)
(I^2)RT
joules/second

40. isobaric
(Patm) + (Pgauge)
qVB
no temp change
constant pressure

41. third kinematic
k|Q|/r^2
L -LCostheta
hc/wavelength
V^2=(Vo)^2 +2a*change in x

42. formula for torque
MC(deltaT)
rF
roegh
constant pressure

43. formula for finding the momentum of a photon
BLv
(V^2)/r
h/wavelength
roegh

44. first kinematic
V = (Vo) + at
Columbs/second
BLv
-KA

45. type of collision where K is not conserved
hc/wavelength
h/wavelength
inelastic collision
KI/r

46. formula for power with current and voltage
e=mc^2
F/A
k|Q|/r^2
VI

47. electric potential a distance r from a charge
BA
nSintheta=nsintheta
K |q||Q|/r^2
KQ/r

48. radius of curvature of a charged particle as it enters a uniform magnetic field
sqrt(T/(m/))
m(v^2)/qvB
h/mv
constant volume

49. force of frction on an incline
qrB/m
mgCostheta(mu)d
no temp change
h(Fo)

50. heat required to change temperature of a substance
no temp change
MC(deltaT)
L -LCostheta
.5CV^2 or .5 Q^2/C or .5QV