Test your basic knowledge |

AP Physics Formulas

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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 for critical angle
(N2)/(N1)
h/wavelength
mgCostheta(mu)d
K |q||Q|/r^2

2. force a charge in a Bfield
J= Ft
(Patm) + (Pgauge)
qVB
constant volume

3. velocity of an electrion as it exitws from the hole
roegh
n(Cv)(deltaT)
G M/((d/2)^2)
qrB/m

4. adibatic
no heat flow
MC(deltaT)
qV
(No)(wavelength)=(Nn)(new wavelength)

5. the electric force between two objects of charge Q
roeVg
K |q||Q|/r^2
.5KA^2
FV

6. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
nSintheta=nsintheta
rF
E/B
dSintheta=mwavelength

7. force of gravity between two objects of mass m
GM*M/(r^2)
inelastic collision
(No)(wavelength)=(Nn)(new wavelength)
J= Ft

8. formula for power with current and voltage
Q=CV
J= Ft
sqrt(T/(m/))
VI

9. formula for finding the magnetic field a distance r from a current carrying wire
0
M(Lf)
KI/r
h(Fo)

10. heat during a cyclic process (net heat)
(Wnet)/(Qin)
no force (right hand rule)
deltaU -deltaW
(3/2)nRdeltaT

11. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
(Wnet)/(Qin)
L -LCostheta
G M/((d/2)^2)
MC(deltaT)

12. the units of power other than watts
nSintheta=nsintheta
perfectly inelastic collision
joules/second
VI

13. third kinematic
V^2=(Vo)^2 +2a*change in x
M(Lf)
((Th) -(Tl))/(Th)
mgCostheta(mu)d

14. formula for the wavelength (debroglie wavelength) of a moving particle
(Patm) + (Pgauge)
h/mv
mgCostheta(mu)d
no temp change

15. formula for finding the momentum of a photon
h/wavelength
deltaU = deltaQ + deltaW
k|Q|/r^2
h(Fo)

16. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
MC(deltaT)
qV
(EMF)Rt/10
FV

17. formula for period of a pendulum
2Pi * sqrt(l/g)
nSintheta=nsintheta
-KA
V = (Vo) + at

18. velocity of waves on a string if tension is known
(EMF)Rt/10
Joules/Columb
mV -m(Vo)
sqrt(T/(m/))

19. units for voltage other than volts
G M/((d/2)^2)
nSintheta=nsintheta
Joules/Columb
qVB

20. second kinematic
E/B
(1/Do) + (1/Di) = (1/f)
delta x = (Vo)t + .5at^2
opposite motion

21. forgotten power equation
1/2wavelength
0
FV
F/A

22. new frequency of light as it enters a new substance
frequency never changes for light problems
(Di)/(Do) or (Hi)/(Ho)
2nt=mwavelength
perfectly inelastic collision

23. electric field in a distance r from a charge
(N2)/(N1)
k|Q|/r^2
h(Fo)
(1/Do) + (1/Di) = (1/f)

24. formula relating voltage and electric field
J= Ft
(No)(wavelength)=(Nn)(new wavelength)
Ed=V
0

25. electric potential a distance r from a charge
.5mV^2 + .5KA^2
pL/A
BLv
KQ/r

26. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
AV=(A2)(V2)
(Fn)(mu)
(EMF)Rt/10
constant pressure

27. new wavelength of light as it enters a new substance
(Patm) + (Pgauge)
K |q||Q|/r^2
nSintheta=nsintheta
(No)(wavelength)=(Nn)(new wavelength)

28. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
constant pressure
d/2
frequency never changes for light problems

29. formula for impulse involving momentum
BLv
elastic collision
mV -m(Vo)
nSintheta=nsintheta

30. EMF of a battery having internal resistance R
(Wnet)/(Qin)
delta x = (Vo)t + .5at^2
V+IR
(Fn)(mu)

31. first kinematic
M(Lf)
V = (Vo) + at
Joules/Columb
opposite motion

32. formula for energy of a spring mass when spring is at maximum displacement
V = (Vo) + at
mgCostheta(mu)d
.5KA^2
KQ/r

33. force of frction on an incline
nSintheta=nsintheta
qrB/m
.5mV^2 + .5KA^2
mgCostheta(mu)d

34. the units of current other than amps
Columbs/second
no force (right hand rule)
GM*M/(r^2)
V^2=(Vo)^2 +2a*change in x

35. formula for torque
rF
(V^2)/R
V = (Vo) + at
net work = delta K

36. formula for finding magnetic flux
BA
V+IR
no heat flow
1/((1/C)+(1/C)..........)

37. formula for Carnot efficiency
G M/((d/2)^2)
((Th) -(Tl))/(Th)
Columbs/second
J= Ft

38. formula for efficiency not using work out
Q=CV
h/wavelength
K |q||Q|/r^2
((Qin) -(Qout))/(Qin)

39. equation for the first law of thermodynamics
joules/second
dSintheta=mwavelength
deltaU = deltaQ + deltaW
(Wnet)/(Qin)

40. type of collision where K is not conserved
opposite motion
BLv
Q=CV
inelastic collision

41. heat required to melt a substance
h/wavelength
h/mv
M(Lf)
sqrt(3KT/m)

42. work energy theorum
net work = delta K
(Di)/(Do) or (Hi)/(Ho)
rF
Ed=V

43. velocity of a molecule of gas
(3/2)nRdeltaT
sqrt(3KT/m)
perfectly inelastic collision
V+IR

44. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
(N2)/(N1)
VI
k|Q|/r^2
.5mV^2 + .5KA^2

45. type of collision where K is conserved
F/A
net work = delta K
elastic collision
((Th) -(Tl))/(Th)

46. force of friction
(3/2)nRdeltaT
F/A
(1/Do) + (1/Di) = (1/f)
(Fn)(mu)

47. resistance of a wire
Q=CV
constant pressure
pL/A
h(Fo)

48. natural frequency of a closed tube of length L
qE
1/4wavelength
perfectly inelastic collision
(V^2)/R

49. formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT
F/A
J= Ft
Joules/Columb

50. formula for power with current and resistance
BLv
L -LCostheta
(I^2)R
(No)(wavelength)=(Nn)(new wavelength)