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 charge stored in a capciator
constant pressure
V^2=(Vo)^2 +2a*change in x
Q=CV
.5KA^2

2. force of frction on an incline
1/((1/C)+(1/C)..........)
mgCostheta(mu)d
(hc/wavelength)=h(Fo) +(Vs)
(1/Do) + (1/Di) = (1/f)

3. magnification equation
(Di)/(Do) or (Hi)/(Ho)
n(Cv)(deltaT)
elastic collision
hc/wavelength

4. formula for period of a pendulum
0
2Pi * sqrt(l/g)
V^2=(Vo)^2 +2a*change in x
(Fn)(mu)

5. formula for torque
rF
.5mV^2 + .5KA^2
m(v^2)/qvB
(hc/wavelength)=h(Fo) +(Vs)

6. heat during a cyclic process (net heat)
delta x = (Vo)t + .5at^2
M(Lf)
K |q||Q|/r^2
deltaU -deltaW

7. focal length of a mirror with radius d
m(v^2)/qvB
net work = delta K
1/2wavelength
d/2

8. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
.5mV^2 + .5KA^2
(hc/wavelength)=h(Fo) +(Vs)
inelastic collision
Columbs/second

9. resistance of a wire
elastic collision
k|Q|/r^2
BA
pL/A

10. formula for buoyant force
(EMF)Rt/10
frequency never changes for light problems
rF
roeVg

11. isothermal
no temp change
mV -m(Vo)
F/A
(No)(wavelength)=(Nn)(new wavelength)

12. energy of a photon if wavelength is known
(3/2)nRdeltaT
hc/wavelength
mV -m(Vo)
no temp change

13. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
rF
inelastic collision
delta x = (Vo)t + .5at^2

14. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
(hc/wavelength)=h(Fo) +(Vs)
opposite motion
inelastic collision

15. formula equating energy and mass
e=mc^2
d/2
1/((1/C)+(1/C)..........)
J= Ft

16. the force on a charge moving parallel to a magnetic field
FV
no heat flow
no force (right hand rule)
deltaU -deltaW

17. forgotten power equation
(3/2)nRdeltaT
h(Fo)
((Th) -(Tl))/(Th)
FV

18. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
sqrt(3KT/m)
(V^2)/r
E/B
k|Q|/r^2

19. pressure
FV
(Di)/(Do) or (Hi)/(Ho)
F/A
h/wavelength

20. new frequency of light as it enters a new substance
frequency never changes for light problems
0
hc/wavelength
qE

21. formula for finding the work function of a metal if the cutoff frequency is known
qrB/m
1/2wavelength
h(Fo)
E/B

22. the units of power other than watts
deltaU -deltaW
dSintheta=mwavelength
Q=CV
joules/second

23. type of collision where objects stick togerther
no force (right hand rule)
(3/2)nRdeltaT
perfectly inelastic collision
1/4wavelength

24. formula for finding the momentum of a photon
h/wavelength
(I^2)RT
AV=(A2)(V2)
(3/2)nRdeltaT

25. heat required to melt a substance
FV
(I^2)RT
M(Lf)
k|Q|/r^2

26. formula for finding the magnetic field a distance r from a current carrying wire
h/mv
KI/r
M(Lf)
frequency never changes for light problems

27. snells law
deltaU = deltaQ + deltaW
no temp change
constant volume
nSintheta=nsintheta

28. formula to find the absoluate pressure at the bottom of a pool
frequency never changes for light problems
(Patm) + (Pgauge)
2Pi * sqrt(l/g)
qVB

29. formula for centripetal acceleration
AV=(A2)(V2)
.5CV^2 or .5 Q^2/C or .5QV
(3/2)nRdeltaT
(V^2)/r

30. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
joules/second
qV
Columbs/second
(Fn)(mu)

31. work energy theorum
GM*M/(r^2)
net work = delta K
1/((1/C)+(1/C)..........)
e=mc^2

32. velocity of an electrion as it exitws from the hole
(I^2)R
.5CV^2 or .5 Q^2/C or .5QV
1/((1/C)+(1/C)..........)
qrB/m

33. the electric force between two objects of charge Q
nSintheta=nsintheta
L -LCostheta
(Di)/(Do) or (Hi)/(Ho)
K |q||Q|/r^2

34. electric potential a distance r from a charge
dSintheta=mwavelength
(I^2)R
m(v^2)/qvB
KQ/r

35. the force on a charge in an electric field
L -LCostheta
opposite motion
1/4wavelength
qE

36. energy stored in a capacitor
mgCostheta(mu)d
(I^2)RT
VI
.5CV^2 or .5 Q^2/C or .5QV

37. formula for impulse involving momentum
sqrt(T/(m/))
elastic collision
mV -m(Vo)
(Wnet)/(Qin)

38. formula for Carnot efficiency
V+IR
sqrt(T/(m/))
((Th) -(Tl))/(Th)
(Di)/(Do) or (Hi)/(Ho)

39. equation for the first law of thermodynamics
.5mV^2 + .5KA^2
k|Q|/r^2
delta x = (Vo)t + .5at^2
deltaU = deltaQ + deltaW

40. second kinematic
delta x = (Vo)t + .5at^2
Q=CV
deltaU = deltaQ + deltaW
constant volume

41. formula for height of the block (at the start of a pendulum string) in terms of theta and L
1/4wavelength
V+IR
mV -m(Vo)
L -LCostheta

42. natural frequency of an open tube of length L
h/wavelength
(Wnet)/(Qin)
1/2wavelength
-KA

43. third kinematic
V^2=(Vo)^2 +2a*change in x
V+IR
(Wnet)/(Qin)
perfectly inelastic collision

44. force a charge in a Bfield
qVB
-KA
qrB/m
J= Ft

45. formula for efficiency of a heat engine using work out
(EMF)Rt/10
k|Q|/r^2
.5KA^2
(Wnet)/(Qin)

46. formula for power with Voltage and resistance
J= Ft
dSintheta=mwavelength
(V^2)/R
hc/wavelength

47. EMF of a battery having internal resistance R
((Th) -(Tl))/(Th)
V+IR
(1/Do) + (1/Di) = (1/f)
(V^2)/r

48. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
inelastic collision
(I^2)RT
rF
deltaU = deltaQ + deltaW

49. formula for finding magnetic flux
pL/A
BA
nSintheta=nsintheta
(Wnet)/(Qin)

50. formula for impluse involving time
V = (Vo) + at
no temp change
J= Ft
h(Fo)