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 finding magnetic flux
no temp change
rF
BA
L -LCostheta

2. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10
(V^2)/r
(Patm) + (Pgauge)
k|Q|/r^2

3. heat required to melt a substance
d/2
BA
M(Lf)
L -LCostheta

4. adibatic
GM*M/(r^2)
Q=CV
deltaU -deltaW
no heat flow

5. formula for Carnot efficiency
roeVg
((Th) -(Tl))/(Th)
BLv
MC(deltaT)

6. first kinematic
V = (Vo) + at
BLv
net work = delta K
(I^2)RT

7. isothermal
no temp change
roeVg
Ed=V
L -LCostheta

8. forgotten power equation
FV
AV=(A2)(V2)
h(Fo)
d/2

9. heat during a cyclic process (net heat)
perfectly inelastic collision
constant volume
GM*M/(r^2)
deltaU -deltaW

10. formula for charge stored in a capciator
sqrt(T/(m/))
(Di)/(Do) or (Hi)/(Ho)
.5mV^2 + .5KA^2
Q=CV

11. radius of curvature of a charged particle as it enters a uniform magnetic field
(hc/wavelength)=h(Fo) +(Vs)
h/wavelength
m(v^2)/qvB
(N2)/(N1)

12. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qVB
(Fn)(mu)
deltaU -deltaW
L -LCostheta

13. snells law
Joules/Columb
nSintheta=nsintheta
constant pressure
opposite motion

14. force a charge in a Bfield
qE
mV -m(Vo)
qVB
rF

15. total capacitance of capacitors in series
h(Fo)
1/((1/C)+(1/C)..........)
no heat flow
1/2wavelength

16. units for voltage other than volts
(V^2)/r
Joules/Columb
FV
(V^2)/R

17. the electric force between two objects of charge Q
K |q||Q|/r^2
GM*M/(r^2)
Ed=V
2nt=mwavelength

18. formula to find the absoluate pressure at the bottom of a pool
(V^2)/R
L -LCostheta
(N2)/(N1)
(Patm) + (Pgauge)

19. voltage induced in a rod moving through a uniform magnetic field
MC(deltaT)
KQ/r
(Patm) + (Pgauge)
BLv

20. EMF of a battery having internal resistance R
nSintheta=nsintheta
V+IR
mgCostheta(mu)d
frequency never changes for light problems

21. formula for impulse involving momentum
0
V^2=(Vo)^2 +2a*change in x
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)

22. third kinematic
V^2=(Vo)^2 +2a*change in x
K |q||Q|/r^2
(V^2)/R
V = (Vo) + at

23. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
GM*M/(r^2)
(V^2)/r
rF
(hc/wavelength)=h(Fo) +(Vs)

24. formula for buoyant force
BA
roeVg
M(Lf)
qV

25. formula for centripetal acceleration
(V^2)/r
Columbs/second
V = (Vo) + at
E/B

26. formula for power with current and resistance
constant volume
(I^2)R
nSintheta=nsintheta
(N2)/(N1)

27. equation for the first law of thermodynamics
((Qin) -(Qout))/(Qin)
deltaU = deltaQ + deltaW
elastic collision
(EMF)Rt/10

28. force of frction on an incline
opposite motion
sqrt(3KT/m)
mgCostheta(mu)d
Joules/Columb

29. formula for constructive interference in a thin membrane with two phase changes
qrB/m
2nt=mwavelength
inelastic collision
(Patm) + (Pgauge)

30. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT
1/4wavelength
V = (Vo) + at
.5CV^2 or .5 Q^2/C or .5QV

31. velocity of waves on a string if tension is known
(I^2)RT
mV -m(Vo)
sqrt(T/(m/))
deltaU -deltaW

32. force of gravity between two objects of mass m
GM*M/(r^2)
opposite motion
pL/A
n(Cv)(deltaT)

33. the units of current other than amps
Columbs/second
mV -m(Vo)
J= Ft
GM*M/(r^2)

34. heat during an isometric process
Q=CV
(1/Do) + (1/Di) = (1/f)
dSintheta=mwavelength
n(Cv)(deltaT)

35. work energy theorum
2Pi * sqrt(l/g)
(N2)/(N1)
((Qin) -(Qout))/(Qin)
net work = delta K

36. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
MC(deltaT)
K |q||Q|/r^2
rF
.5mV^2 + .5KA^2

37. formula for efficiency of a heat engine using work out
GM*M/(r^2)
(Wnet)/(Qin)
rF
roeVg

38. velocity of an electrion as it exitws from the hole
V = (Vo) + at
qrB/m
perfectly inelastic collision
k|Q|/r^2

39. pressure
M(Lf)
F/A
net work = delta K
h/mv

40. magnification equation
(Di)/(Do) or (Hi)/(Ho)
(N2)/(N1)
frequency never changes for light problems
h/wavelength

41. formula for change in internal energy in a cosnstat volume PV process
n(Cv)(deltaT)
deltaU -deltaW
(3/2)nRdeltaT
VI

42. heat required to change temperature of a substance
e=mc^2
BA
MC(deltaT)
KQ/r

43. isometric
BA
V = (Vo) + at
constant volume
((Qin) -(Qout))/(Qin)

44. new wavelength of light as it enters a new substance
V = (Vo) + at
qrB/m
perfectly inelastic collision
(No)(wavelength)=(Nn)(new wavelength)

45. formula for power with Voltage and resistance
(V^2)/R
sqrt(3KT/m)
(1/Do) + (1/Di) = (1/f)
J= Ft

46. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
h/wavelength
E/B
-KA
elastic collision

47. formula for torque
BLv
rF
Joules/Columb
V+IR

48. what direction is friction?
sqrt(T/(m/))
opposite motion
n(Cv)(deltaT)
net work = delta K

49. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
Joules/Columb
no force (right hand rule)
joules/second

50. electric field in a distance r from a charge
GM*M/(r^2)
k|Q|/r^2
dSintheta=mwavelength
V+IR