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 energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
pL/A
dSintheta=mwavelength
(1/Do) + (1/Di) = (1/f)
.5mV^2 + .5KA^2

2. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
KQ/r
k|Q|/r^2
.5CV^2 or .5 Q^2/C or .5QV

3. force of frction on an incline
M(Lf)
Ed=V
mgCostheta(mu)d
qrB/m

4. heat during an isometric process
opposite motion
n(Cv)(deltaT)
Q=CV
(Wnet)/(Qin)

5. heat during a cyclic process (net heat)
MC(deltaT)
deltaU -deltaW
mV -m(Vo)
-KA

6. adibatic
no heat flow
pL/A
qrB/m
(V^2)/R

7. formula for finding magnetic flux
BA
rF
h/wavelength
KI/r

8. first kinematic
J= Ft
V = (Vo) + at
(I^2)R
(EMF)Rt/10

9. formula equating energy and mass
hc/wavelength
e=mc^2
KQ/r
FV

10. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
(No)(wavelength)=(Nn)(new wavelength)
E/B
e=mc^2

11. formula for impluse involving time
no heat flow
J= Ft
AV=(A2)(V2)
(I^2)RT

12. electric field in a distance r from a charge
V+IR
qV
k|Q|/r^2
Q=CV

13. formula for energy of a spring mass when spring is at maximum displacement
Columbs/second
deltaU = deltaQ + deltaW
opposite motion
.5KA^2

14. natural frequency of a closed tube of length L
G M/((d/2)^2)
dSintheta=mwavelength
1/4wavelength
(No)(wavelength)=(Nn)(new wavelength)

15. formula for efficiency of a heat engine using work out
((Qin) -(Qout))/(Qin)
rF
(hc/wavelength)=h(Fo) +(Vs)
(Wnet)/(Qin)

16. 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)
L -LCostheta
AV=(A2)(V2)
h/mv

17. radius of curvature of a charged particle as it enters a uniform magnetic field
qrB/m
deltaU = deltaQ + deltaW
(Fn)(mu)
m(v^2)/qvB

18. the force on a charge in an electric field
MC(deltaT)
qE
k|Q|/r^2
hc/wavelength

19. formula for height of the block (at the start of a pendulum string) in terms of theta and L
.5CV^2 or .5 Q^2/C or .5QV
L -LCostheta
deltaU = deltaQ + deltaW
deltaU -deltaW

20. formula for buoyant force
qVB
roeVg
F/A
net work = delta K

21. the units of power other than watts
mV -m(Vo)
joules/second
M(Lf)
d/2

22. heat required to change temperature of a substance
k|Q|/r^2
(V^2)/r
(No)(wavelength)=(Nn)(new wavelength)
MC(deltaT)

23. electric potential a distance r from a charge
KQ/r
(Fn)(mu)
roegh
Q=CV

24. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
((Qin) -(Qout))/(Qin)
k|Q|/r^2
Q=CV

25. formula for power with Voltage and resistance
no temp change
Ed=V
(V^2)/R
MC(deltaT)

26. magnification equation
(Di)/(Do) or (Hi)/(Ho)
MC(deltaT)
qV
((Th) -(Tl))/(Th)

27. formula for finding the work function of a metal if the cutoff frequency is known
(EMF)Rt/10
1/((1/C)+(1/C)..........)
roeVg
h(Fo)

28. formula for critical angle
Ed=V
(N2)/(N1)
no temp change
(Wnet)/(Qin)

29. the force on a charge moving parallel to a magnetic field
opposite motion
0
no temp change
no force (right hand rule)

30. EMF of a battery having internal resistance R
(I^2)RT
0
h/wavelength
V+IR

31. work energy theorum
net work = delta K
(Di)/(Do) or (Hi)/(Ho)
Joules/Columb
BA

32. isometric
qE
M(Lf)
pL/A
constant volume

33. heat required to melt a substance
no heat flow
h(Fo)
M(Lf)
nSintheta=nsintheta

34. type of collision where K is not conserved
no heat flow
1/2wavelength
qrB/m
inelastic collision

35. the units of current other than amps
perfectly inelastic collision
Columbs/second
1/((1/C)+(1/C)..........)
K |q||Q|/r^2

36. type of collision where objects stick togerther
perfectly inelastic collision
AV=(A2)(V2)
KQ/r
1/2wavelength

37. natural frequency of an open tube of length L
roegh
.5CV^2 or .5 Q^2/C or .5QV
pL/A
1/2wavelength

38. energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV
roeVg
sqrt(3KT/m)
1/4wavelength

39. formula for Carnot efficiency
constant volume
BLv
d/2
((Th) -(Tl))/(Th)

40. 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
sqrt(3KT/m)
Q=CV
(I^2)RT

41. formula for change in internal energy in a cosnstat volume PV process
mgCostheta(mu)d
(3/2)nRdeltaT
(I^2)R
F/A

42. velocity of a molecule of gas
L -LCostheta
1/((1/C)+(1/C)..........)
k|Q|/r^2
sqrt(3KT/m)

43. snells law
nSintheta=nsintheta
constant volume
2nt=mwavelength
M(Lf)

44. formula for torque
Columbs/second
.5KA^2
rF
Ed=V

45. velocity of an electrion as it exitws from the hole
no heat flow
pL/A
opposite motion
qrB/m

46. formula for finding the momentum of a photon
h/wavelength
inelastic collision
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV

47. isobaric
roegh
constant pressure
qE
rF

48. units for voltage other than volts
Joules/Columb
(V^2)/r
(hc/wavelength)=h(Fo) +(Vs)
no force (right hand rule)

49. formula for constructive interference in a thin membrane with two phase changes
(Di)/(Do) or (Hi)/(Ho)
2nt=mwavelength
(V^2)/R
((Th) -(Tl))/(Th)

50. formula for period of a pendulum
qV
2Pi * sqrt(l/g)
mV -m(Vo)
(Patm) + (Pgauge)