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 power with current and resistance
qVB
(3/2)nRdeltaT
(I^2)R
deltaU = deltaQ + deltaW

2. velocity of a molecule of gas
pL/A
(hc/wavelength)=h(Fo) +(Vs)
sqrt(3KT/m)
Joules/Columb

3. hooke's law force of a spring
.5mV^2 + .5KA^2
(EMF)Rt/10
((Th) -(Tl))/(Th)
-KA

4. force of gravity between two objects of mass m
(No)(wavelength)=(Nn)(new wavelength)
(Wnet)/(Qin)
perfectly inelastic collision
GM*M/(r^2)

5. energy of a photon if wavelength is known
hc/wavelength
sqrt(T/(m/))
opposite motion
roeVg

6. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
constant pressure
1/((1/C)+(1/C)..........)
Joules/Columb

7. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
roegh
L -LCostheta
(EMF)Rt/10
delta x = (Vo)t + .5at^2

8. radius of curvature of a charged particle as it enters a uniform magnetic field
(Fn)(mu)
m(v^2)/qvB
constant pressure
perfectly inelastic collision

9. the units of power other than watts
((Qin) -(Qout))/(Qin)
(Patm) + (Pgauge)
joules/second
frequency never changes for light problems

10. formula for centripetal acceleration
(Fn)(mu)
deltaU -deltaW
nSintheta=nsintheta
(V^2)/r

11. isometric
constant volume
-KA
2Pi * sqrt(l/g)
V+IR

12. the force on a charge moving parallel to a magnetic field
V+IR
(Fn)(mu)
net work = delta K
no force (right hand rule)

13. lens/mirror equation
(I^2)R
n(Cv)(deltaT)
(Fn)(mu)
(1/Do) + (1/Di) = (1/f)

14. formula for impulse involving momentum
(I^2)R
mV -m(Vo)
(No)(wavelength)=(Nn)(new wavelength)
k|Q|/r^2

15. type of collision where K is conserved
elastic collision
perfectly inelastic collision
joules/second
KI/r

16. heat during a cyclic process (net heat)
deltaU -deltaW
VI
elastic collision
mgCostheta(mu)d

17. new frequency of light as it enters a new substance
frequency never changes for light problems
GM*M/(r^2)
M(Lf)
(Di)/(Do) or (Hi)/(Ho)

18. change in internal energy during a cyclic process
frequency never changes for light problems
.5KA^2
0
roeVg

19. type of collision where K is not conserved
opposite motion
Q=CV
inelastic collision
BA

20. work energy theorum
1/2wavelength
opposite motion
net work = delta K
(EMF)Rt/10

21. equation of continuity
1/4wavelength
AV=(A2)(V2)
VI
GM*M/(r^2)

22. the units of current other than amps
V+IR
Columbs/second
e=mc^2
BLv

23. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
(3/2)nRdeltaT
KQ/r
(N2)/(N1)

24. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
qE
Q=CV
G M/((d/2)^2)
(Wnet)/(Qin)

25. formula for finding the magnetic field a distance r from a current carrying wire
constant pressure
KI/r
J= Ft
elastic collision

26. snells law
0
nSintheta=nsintheta
J= Ft
deltaU = deltaQ + deltaW

27. second kinematic
.5CV^2 or .5 Q^2/C or .5QV
Joules/Columb
MC(deltaT)
delta x = (Vo)t + .5at^2

28. formula to find the absoluate pressure at the bottom of a pool
(N2)/(N1)
rF
Joules/Columb
(Patm) + (Pgauge)

29. equation for the first law of thermodynamics
2Pi * sqrt(l/g)
perfectly inelastic collision
h/mv
deltaU = deltaQ + deltaW

30. energy stored in a capacitor
KI/r
1/4wavelength
VI
.5CV^2 or .5 Q^2/C or .5QV

31. formula for Carnot efficiency
FV
((Th) -(Tl))/(Th)
(1/Do) + (1/Di) = (1/f)
hc/wavelength

32. formula for torque
Columbs/second
nSintheta=nsintheta
rF
roeVg

33. formula for efficiency of a heat engine using work out
Columbs/second
(Wnet)/(Qin)
h/wavelength
elastic collision

34. formula for charge stored in a capciator
M(Lf)
V = (Vo) + at
Q=CV
(Patm) + (Pgauge)

35. EMF of a battery having internal resistance R
e=mc^2
deltaU = deltaQ + deltaW
.5CV^2 or .5 Q^2/C or .5QV
V+IR

36. force of friction
m(v^2)/qvB
(Fn)(mu)
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)

37. formula equating energy and mass
e=mc^2
perfectly inelastic collision
k|Q|/r^2
Joules/Columb

38. velocity of an electrion as it exitws from the hole
-KA
opposite motion
qrB/m
hc/wavelength

39. focal length of a mirror with radius d
no temp change
((Th) -(Tl))/(Th)
d/2
2Pi * sqrt(l/g)

40. formula for change in internal energy in a cosnstat volume PV process
E/B
(3/2)nRdeltaT
rF
mgCostheta(mu)d

41. velocity of waves on a string if tension is known
.5mV^2 + .5KA^2
sqrt(T/(m/))
J= Ft
perfectly inelastic collision

42. forgotten power equation
(Wnet)/(Qin)
FV
rF
E/B

43. pressure
F/A
BLv
GM*M/(r^2)
deltaU = deltaQ + deltaW

44. formula for critical angle
delta x = (Vo)t + .5at^2
(N2)/(N1)
-KA
GM*M/(r^2)

45. voltage induced in a rod moving through a uniform magnetic field
BLv
(EMF)Rt/10
hc/wavelength
KQ/r

46. units for voltage other than volts
M(Lf)
h/mv
Joules/Columb
BLv

47. formula for the wavelength (debroglie wavelength) of a moving particle
1/2wavelength
h/mv
no temp change
E/B

48. what direction is friction?
(Di)/(Do) or (Hi)/(Ho)
net work = delta K
0
opposite motion

49. force of frction on an incline
-KA
1/4wavelength
mgCostheta(mu)d
h/wavelength

50. formula for power with Voltage and resistance
e=mc^2
h/mv
KI/r
(V^2)/R