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. force of gravity between two objects of mass m
opposite motion
GM*M/(r^2)
((Qin) -(Qout))/(Qin)
Ed=V

2. natural frequency of a closed tube of length L
1/4wavelength
constant volume
((Th) -(Tl))/(Th)
(I^2)R

3. type of collision where K is not conserved
inelastic collision
rF
qE
opposite motion

4. energy stored in a capacitor
(3/2)nRdeltaT
.5CV^2 or .5 Q^2/C or .5QV
constant pressure
delta x = (Vo)t + .5at^2

5. formula equating energy and mass
1/((1/C)+(1/C)..........)
deltaU = deltaQ + deltaW
e=mc^2
KQ/r

6. the units of current other than amps
Columbs/second
mV -m(Vo)
qrB/m
no temp change

7. electric potential a distance r from a charge
(V^2)/r
deltaU -deltaW
no temp change
KQ/r

8. formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(Di)/(Do) or (Hi)/(Ho)
no temp change
K |q||Q|/r^2
(EMF)Rt/10

9. heat during a cyclic process (net heat)
deltaU -deltaW
KI/r
deltaU = deltaQ + deltaW
(3/2)nRdeltaT

10. resistance of a wire
pL/A
deltaU -deltaW
(Di)/(Do) or (Hi)/(Ho)
(Fn)(mu)

11. formula relating voltage and electric field
Ed=V
(N2)/(N1)
AV=(A2)(V2)
J= Ft

12. formula to find the gauge pressure at the bottom of a pool
qVB
(No)(wavelength)=(Nn)(new wavelength)
roegh
GM*M/(r^2)

13. formula for period of a pendulum
2Pi * sqrt(l/g)
AV=(A2)(V2)
Ed=V
M(Lf)

14. velocity of an electrion as it exitws from the hole
1/4wavelength
deltaU = deltaQ + deltaW
qrB/m
G M/((d/2)^2)

15. formula for finding magnetic flux
h(Fo)
(No)(wavelength)=(Nn)(new wavelength)
0
BA

16. formula for power with current and voltage
qE
opposite motion
VI
roegh

17. lens/mirror equation
(Fn)(mu)
(1/Do) + (1/Di) = (1/f)
L -LCostheta
Joules/Columb

18. the force on a charge in an electric field
(I^2)RT
K |q||Q|/r^2
MC(deltaT)
qE

19. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
joules/second
perfectly inelastic collision
elastic collision

20. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV
(No)(wavelength)=(Nn)(new wavelength)
.5CV^2 or .5 Q^2/C or .5QV
((Th) -(Tl))/(Th)

21. formula for constructive interference in a thin membrane with two phase changes
constant pressure
(I^2)R
k|Q|/r^2
2nt=mwavelength

22. force of friction
(Fn)(mu)
0
((Qin) -(Qout))/(Qin)
BA

23. formula for buoyant force
h(Fo)
k|Q|/r^2
nSintheta=nsintheta
roeVg

24. voltage induced in a rod moving through a uniform magnetic field
qrB/m
(V^2)/r
BLv
FV

25. forgotten power equation
deltaU = deltaQ + deltaW
FV
F/A
1/2wavelength

26. the units of power other than watts
constant volume
joules/second
L -LCostheta
net work = delta K

27. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
V = (Vo) + at
.5mV^2 + .5KA^2
pL/A
sqrt(3KT/m)

28. heat required to melt a substance
constant volume
joules/second
KI/r
M(Lf)

29. formula for finding the magnetic field a distance r from a current carrying wire
KI/r
-KA
0
e=mc^2

30. heat required to change temperature of a substance
AV=(A2)(V2)
E/B
MC(deltaT)
FV

31. force a charge in a Bfield
qVB
MC(deltaT)
Columbs/second
((Th) -(Tl))/(Th)

32. first kinematic
V = (Vo) + at
frequency never changes for light problems
VI
K |q||Q|/r^2

33. 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
Joules/Columb
M(Lf)
(No)(wavelength)=(Nn)(new wavelength)

34. formula for finding the momentum of a photon
.5mV^2 + .5KA^2
((Qin) -(Qout))/(Qin)
h/wavelength
(I^2)RT

35. formula for impulse involving momentum
mV -m(Vo)
joules/second
GM*M/(r^2)
(N2)/(N1)

36. work energy theorum
qE
.5mV^2 + .5KA^2
net work = delta K
frequency never changes for light problems

37. isometric
.5CV^2 or .5 Q^2/C or .5QV
(N2)/(N1)
constant volume
V = (Vo) + at

38. formula for energy of a spring mass when spring is at maximum displacement
dSintheta=mwavelength
.5KA^2
qVB
(Di)/(Do) or (Hi)/(Ho)

39. formula for Carnot efficiency
qVB
((Th) -(Tl))/(Th)
G M/((d/2)^2)
KQ/r

40. pressure
(V^2)/r
rF
-KA
F/A

41. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(1/Do) + (1/Di) = (1/f)
BA
(hc/wavelength)=h(Fo) +(Vs)
h/mv

42. type of collision where K is conserved
elastic collision
(V^2)/r
(Fn)(mu)
e=mc^2

43. formula for critical angle
.5CV^2 or .5 Q^2/C or .5QV
(N2)/(N1)
opposite motion
V+IR

44. magnification equation
(Di)/(Do) or (Hi)/(Ho)
AV=(A2)(V2)
deltaU = deltaQ + deltaW
1/2wavelength

45. units for voltage other than volts
KI/r
Joules/Columb
0
opposite motion

46. snells law
pL/A
constant pressure
nSintheta=nsintheta
(N2)/(N1)

47. change in internal energy during a cyclic process
h/mv
0
qV
E/B

48. velocity of waves on a string if tension is known
VI
sqrt(T/(m/))
deltaU -deltaW
constant volume

49. formula for constructive interference in a diffraction grating
BLv
dSintheta=mwavelength
MC(deltaT)
Ed=V

50. second kinematic
KI/r
(N2)/(N1)
(V^2)/r
delta x = (Vo)t + .5at^2