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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. the electric force between two objects of charge Q
(V^2)/r
K |q||Q|/r^2
Columbs/second
BLv

2. formula for centripetal acceleration
1/4wavelength
(Wnet)/(Qin)
(V^2)/r
inelastic collision

3. type of collision where objects stick togerther
Q=CV
h/wavelength
net work = delta K
perfectly inelastic collision

4. first kinematic
2nt=mwavelength
V = (Vo) + at
rF
BLv

5. adibatic
inelastic collision
no heat flow
F/A
G M/((d/2)^2)

6. the units of current other than amps
Columbs/second
(Fn)(mu)
E/B
qE

7. what direction is friction?
Q=CV
e=mc^2
opposite motion
delta x = (Vo)t + .5at^2

8. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
deltaU -deltaW
(No)(wavelength)=(Nn)(new wavelength)
qV

9. formula for critical angle
(I^2)RT
perfectly inelastic collision
(N2)/(N1)
-KA

10. formula for power with Voltage and resistance
GM*M/(r^2)
(V^2)/R
M(Lf)
E/B

11. formula for finding the magnetic field a distance r from a current carrying wire
dSintheta=mwavelength
K |q||Q|/r^2
.5mV^2 + .5KA^2
KI/r

12. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
e=mc^2
qV
(I^2)R
frequency never changes for light problems

13. formula for finding the momentum of a photon
Q=CV
FV
net work = delta K
h/wavelength

14. the units of power other than watts
(hc/wavelength)=h(Fo) +(Vs)
(V^2)/R
(N2)/(N1)
joules/second

15. formula for finding the work function of a metal if the cutoff frequency is known
frequency never changes for light problems
h(Fo)
1/4wavelength
K |q||Q|/r^2

16. electric field in a distance r from a charge
k|Q|/r^2
AV=(A2)(V2)
L -LCostheta
hc/wavelength

17. formula for impluse involving time
n(Cv)(deltaT)
J= Ft
frequency never changes for light problems
(Di)/(Do) or (Hi)/(Ho)

18. natural frequency of an open tube of length L
qE
1/2wavelength
rF
0

19. resistance of a wire
((Th) -(Tl))/(Th)
(1/Do) + (1/Di) = (1/f)
.5KA^2
pL/A

20. heat required to melt a substance
BA
m(v^2)/qvB
M(Lf)
(N2)/(N1)

21. formula for period of a pendulum
2Pi * sqrt(l/g)
Columbs/second
qV
1/2wavelength

22. formula for impulse involving momentum
constant volume
mV -m(Vo)
M(Lf)
.5KA^2

23. velocity of an electrion as it exitws from the hole
F/A
.5mV^2 + .5KA^2
qV
qrB/m

24. type of collision where K is not conserved
.5mV^2 + .5KA^2
inelastic collision
n(Cv)(deltaT)
FV

25. formula for power with current and resistance
rF
KQ/r
(I^2)R
qVB

26. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
e=mc^2
BLv
(1/Do) + (1/Di) = (1/f)

27. force a charge in a Bfield
VI
Columbs/second
qVB
2nt=mwavelength

28. EMF of a battery having internal resistance R
e=mc^2
V+IR
deltaU -deltaW
deltaU = deltaQ + deltaW

29. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
net work = delta K
n(Cv)(deltaT)
E/B
FV

30. third kinematic
(No)(wavelength)=(Nn)(new wavelength)
pL/A
(I^2)RT
V^2=(Vo)^2 +2a*change in x

31. formula for efficiency not using work out
opposite motion
((Qin) -(Qout))/(Qin)
V+IR
roeVg

32. units for voltage other than volts
h(Fo)
(Di)/(Do) or (Hi)/(Ho)
Joules/Columb
(I^2)R

33. focal length of a mirror with radius d
h/mv
d/2
2nt=mwavelength
joules/second

34. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
V = (Vo) + at
-KA
.5KA^2
(I^2)RT

35. equation for the first law of thermodynamics
e=mc^2
deltaU = deltaQ + deltaW
deltaU -deltaW
1/4wavelength

36. formula to find the gauge pressure at the bottom of a pool
opposite motion
roegh
hc/wavelength
inelastic collision

37. snells law
K |q||Q|/r^2
KQ/r
nSintheta=nsintheta
(V^2)/r

38. formula for power with current and voltage
VI
E/B
deltaU -deltaW
k|Q|/r^2

39. force of gravity between two objects of mass m
M(Lf)
GM*M/(r^2)
no heat flow
qVB

40. formula for energy of a spring mass when spring is at maximum displacement
.5mV^2 + .5KA^2
.5KA^2
mgCostheta(mu)d
(I^2)R

41. force of friction
((Qin) -(Qout))/(Qin)
rF
(I^2)R
(Fn)(mu)

42. forgotten power equation
net work = delta K
FV
no heat flow
V^2=(Vo)^2 +2a*change in x

43. work energy theorum
M(Lf)
net work = delta K
no force (right hand rule)
hc/wavelength

44. isometric
constant volume
BLv
h(Fo)
2Pi * sqrt(l/g)

45. velocity of a molecule of gas
V^2=(Vo)^2 +2a*change in x
roegh
sqrt(3KT/m)
(Di)/(Do) or (Hi)/(Ho)

46. formula for charge stored in a capciator
(I^2)RT
(N2)/(N1)
Q=CV
1/2wavelength

47. heat during an isometric process
n(Cv)(deltaT)
hc/wavelength
(Wnet)/(Qin)
constant pressure

48. the force on a charge in an electric field
qE
(Fn)(mu)
V+IR
hc/wavelength

49. equation of continuity
deltaU = deltaQ + deltaW
mgCostheta(mu)d
qrB/m
AV=(A2)(V2)

50. heat required to change temperature of a substance
(1/Do) + (1/Di) = (1/f)
V = (Vo) + at
L -LCostheta
MC(deltaT)