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. type of collision where K is conserved
elastic collision
GM*M/(r^2)
M(Lf)
0

2. formula for efficiency not using work out
roeVg
((Qin) -(Qout))/(Qin)
GM*M/(r^2)
inelastic collision

3. formula for period of a pendulum
L -LCostheta
(Wnet)/(Qin)
roeVg
2Pi * sqrt(l/g)

4. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
k|Q|/r^2
sqrt(3KT/m)
2nt=mwavelength

5. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(Fn)(mu)
E/B
deltaU -deltaW
0

6. first kinematic
1/2wavelength
V = (Vo) + at
inelastic collision
pL/A

7. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
((Th) -(Tl))/(Th)
(hc/wavelength)=h(Fo) +(Vs)
inelastic collision
qVB

8. formula for efficiency of a heat engine using work out
((Th) -(Tl))/(Th)
(Wnet)/(Qin)
dSintheta=mwavelength
BLv

9. formula for finding the work function of a metal if the cutoff frequency is known
V^2=(Vo)^2 +2a*change in x
h(Fo)
(V^2)/r
roegh

10. magnification equation
rF
(Di)/(Do) or (Hi)/(Ho)
F/A
(Wnet)/(Qin)

11. the units of power other than watts
elastic collision
delta x = (Vo)t + .5at^2
joules/second
-KA

12. force of friction
delta x = (Vo)t + .5at^2
(Fn)(mu)
.5mV^2 + .5KA^2
(No)(wavelength)=(Nn)(new wavelength)

13. formula for critical angle
L -LCostheta
V^2=(Vo)^2 +2a*change in x
(N2)/(N1)
qV

14. formula for height of the block (at the start of a pendulum string) in terms of theta and L
(V^2)/R
deltaU -deltaW
delta x = (Vo)t + .5at^2
L -LCostheta

15. formula for torque
1/2wavelength
rF
mgCostheta(mu)d
(1/Do) + (1/Di) = (1/f)

16. formula for power with current and resistance
V^2=(Vo)^2 +2a*change in x
M(Lf)
E/B
(I^2)R

17. lens/mirror equation
-KA
(1/Do) + (1/Di) = (1/f)
(Di)/(Do) or (Hi)/(Ho)
Joules/Columb

18. formula to find the absoluate pressure at the bottom of a pool
J= Ft
(V^2)/R
(Patm) + (Pgauge)
qE

19. forgotten power equation
frequency never changes for light problems
GM*M/(r^2)
.5KA^2
FV

20. second kinematic
(Fn)(mu)
delta x = (Vo)t + .5at^2
GM*M/(r^2)
1/4wavelength

21. third kinematic
V^2=(Vo)^2 +2a*change in x
.5mV^2 + .5KA^2
qE
deltaU = deltaQ + deltaW

22. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
(1/Do) + (1/Di) = (1/f)
qV
Ed=V
J= Ft

23. what direction is friction?
opposite motion
mgCostheta(mu)d
2nt=mwavelength
mV -m(Vo)

24. 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)
K |q||Q|/r^2
-KA

25. formula for centripetal acceleration
sqrt(T/(m/))
roeVg
(V^2)/r
E/B

26. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
dSintheta=mwavelength
roegh
FV

27. pressure
F/A
net work = delta K
e=mc^2
J= Ft

28. energy stored in a capacitor
h/mv
(Wnet)/(Qin)
opposite motion
.5CV^2 or .5 Q^2/C or .5QV

29. heat required to melt a substance
K |q||Q|/r^2
(Patm) + (Pgauge)
n(Cv)(deltaT)
M(Lf)

30. velocity of an electrion as it exitws from the hole
h(Fo)
rF
(N2)/(N1)
qrB/m

31. change in internal energy during a cyclic process
mgCostheta(mu)d
k|Q|/r^2
qV
0

32. formula for impulse involving momentum
nSintheta=nsintheta
elastic collision
no temp change
mV -m(Vo)

33. formula for charge stored in a capciator
Q=CV
GM*M/(r^2)
(I^2)RT
qE

34. heat during a cyclic process (net heat)
deltaU -deltaW
E/B
-KA
d/2

35. voltage induced in a rod moving through a uniform magnetic field
BLv
1/((1/C)+(1/C)..........)
sqrt(3KT/m)
1/2wavelength

36. EMF of a battery having internal resistance R
0
e=mc^2
V+IR
roegh

37. heat required to change temperature of a substance
MC(deltaT)
hc/wavelength
(Fn)(mu)
(No)(wavelength)=(Nn)(new wavelength)

38. formula for finding magnetic flux
qVB
AV=(A2)(V2)
no temp change
BA

39. isobaric
dSintheta=mwavelength
constant pressure
((Th) -(Tl))/(Th)
2nt=mwavelength

40. formula for finding the magnetic field a distance r from a current carrying wire
qVB
rF
BLv
KI/r

41. snells law
nSintheta=nsintheta
d/2
(Wnet)/(Qin)
e=mc^2

42. hooke's law force of a spring
qVB
-KA
2Pi * sqrt(l/g)
(EMF)Rt/10

43. natural frequency of a closed tube of length L
sqrt(3KT/m)
-KA
J= Ft
1/4wavelength

44. new frequency of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
frequency never changes for light problems
k|Q|/r^2
no temp change

45. the electric force between two objects of charge Q
E/B
K |q||Q|/r^2
pL/A
(3/2)nRdeltaT

46. new wavelength of light as it enters a new substance
BA
no force (right hand rule)
(No)(wavelength)=(Nn)(new wavelength)
(N2)/(N1)

47. formula for change in internal energy in a cosnstat volume PV process
(Wnet)/(Qin)
(3/2)nRdeltaT
deltaU = deltaQ + deltaW
1/2wavelength

48. adibatic
.5KA^2
(I^2)RT
no heat flow
deltaU = deltaQ + deltaW

49. work energy theorum
GM*M/(r^2)
deltaU -deltaW
no heat flow
net work = delta K

50. isothermal
K |q||Q|/r^2
no heat flow
nSintheta=nsintheta
no temp change