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. velocity of waves on a string if tension is known
FV
sqrt(T/(m/))
2Pi * sqrt(l/g)
qE

2. formula for impluse involving time
J= Ft
((Th) -(Tl))/(Th)
opposite motion
(Fn)(mu)

3. what direction is friction?
opposite motion
GM*M/(r^2)
(No)(wavelength)=(Nn)(new wavelength)
2Pi * sqrt(l/g)

4. snells law
delta x = (Vo)t + .5at^2
.5mV^2 + .5KA^2
nSintheta=nsintheta
1/((1/C)+(1/C)..........)

5. type of collision where K is conserved
h/wavelength
elastic collision
opposite motion
L -LCostheta

6. resistance of a wire
Joules/Columb
qVB
pL/A
(V^2)/R

7. forgotten power equation
(V^2)/R
FV
GM*M/(r^2)
((Qin) -(Qout))/(Qin)

8. energy of a photon if wavelength is known
K |q||Q|/r^2
BLv
hc/wavelength
GM*M/(r^2)

9. formula for constructive interference in a thin membrane with two phase changes
no heat flow
perfectly inelastic collision
2nt=mwavelength
pL/A

10. equation of continuity
1/4wavelength
delta x = (Vo)t + .5at^2
AV=(A2)(V2)
(Fn)(mu)

11. the force on a charge in an electric field
((Qin) -(Qout))/(Qin)
roegh
qE
sqrt(T/(m/))

12. focal length of a mirror with radius d
M(Lf)
no temp change
d/2
1/4wavelength

13. force of frction on an incline
h/mv
deltaU -deltaW
mgCostheta(mu)d
no temp change

14. the electric force between two objects of charge Q
K |q||Q|/r^2
(Di)/(Do) or (Hi)/(Ho)
1/4wavelength
Columbs/second

15. formula for charge stored in a capciator
1/4wavelength
Q=CV
AV=(A2)(V2)
Columbs/second

16. work energy theorum
.5KA^2
deltaU -deltaW
net work = delta K
dSintheta=mwavelength

17. 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
1/4wavelength
1/((1/C)+(1/C)..........)
.5CV^2 or .5 Q^2/C or .5QV

18. formula for energy of a spring mass when spring is at maximum displacement
.5mV^2 + .5KA^2
.5KA^2
m(v^2)/qvB
mV -m(Vo)

19. formula for Carnot efficiency
1/2wavelength
((Th) -(Tl))/(Th)
perfectly inelastic collision
(No)(wavelength)=(Nn)(new wavelength)

20. formula for centripetal acceleration
(V^2)/r
joules/second
qV
2nt=mwavelength

21. total capacitance of capacitors in series
(V^2)/r
1/((1/C)+(1/C)..........)
constant pressure
(No)(wavelength)=(Nn)(new wavelength)

22. energy stored in a capacitor
(hc/wavelength)=h(Fo) +(Vs)
.5CV^2 or .5 Q^2/C or .5QV
delta x = (Vo)t + .5at^2
((Th) -(Tl))/(Th)

23. units for voltage other than volts
L -LCostheta
VI
Joules/Columb
0

24. isobaric
deltaU -deltaW
no force (right hand rule)
constant pressure
d/2

25. isometric
VI
V+IR
1/2wavelength
constant volume

26. new frequency of light as it enters a new substance
1/4wavelength
frequency never changes for light problems
delta x = (Vo)t + .5at^2
rF

27. formula for power with Voltage and resistance
(V^2)/R
K |q||Q|/r^2
Columbs/second
E/B

28. natural frequency of an open tube of length L
1/2wavelength
GM*M/(r^2)
pL/A
qV

29. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
roeVg
h/mv
(I^2)RT
Ed=V

30. second kinematic
(Fn)(mu)
(No)(wavelength)=(Nn)(new wavelength)
.5KA^2
delta x = (Vo)t + .5at^2

31. the force on a charge moving parallel to a magnetic field
1/4wavelength
no force (right hand rule)
hc/wavelength
Q=CV

32. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
0
J= Ft
joules/second

33. force of gravity between two objects of mass m
deltaU = deltaQ + deltaW
GM*M/(r^2)
(Patm) + (Pgauge)
qVB

34. formula for finding magnetic flux
Q=CV
roeVg
net work = delta K
BA

35. formula to find the gauge pressure at the bottom of a pool
1/((1/C)+(1/C)..........)
((Th) -(Tl))/(Th)
roegh
e=mc^2

36. formula for power with current and resistance
V^2=(Vo)^2 +2a*change in x
MC(deltaT)
(I^2)R
sqrt(3KT/m)

37. the units of power other than watts
2Pi * sqrt(l/g)
joules/second
.5CV^2 or .5 Q^2/C or .5QV
(I^2)RT

38. formula for finding the momentum of a photon
sqrt(3KT/m)
h/wavelength
(V^2)/R
qE

39. force of friction
deltaU -deltaW
KQ/r
(Fn)(mu)
(I^2)R

40. formula for the wavelength (debroglie wavelength) of a moving particle
G M/((d/2)^2)
.5CV^2 or .5 Q^2/C or .5QV
h/mv
joules/second

41. EMF of a battery having internal resistance R
n(Cv)(deltaT)
V+IR
BA
h/mv

42. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
BLv
elastic collision
V+IR

43. change in internal energy during a cyclic process
Q=CV
0
deltaU = deltaQ + deltaW
qE

44. formula for power with current and voltage
0
(N2)/(N1)
VI
h(Fo)

45. formula for period of a pendulum
.5mV^2 + .5KA^2
roegh
mV -m(Vo)
2Pi * sqrt(l/g)

46. formula relating voltage and electric field
constant volume
(N2)/(N1)
roeVg
Ed=V

47. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
1/4wavelength
E/B
qV
K |q||Q|/r^2

48. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
h/mv
BA
(Fn)(mu)

49. formula for critical angle
d/2
sqrt(3KT/m)
(N2)/(N1)
constant volume

50. type of collision where objects stick togerther
perfectly inelastic collision
FV
AV=(A2)(V2)
(V^2)/R