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. focal length of a mirror with radius d
n(Cv)(deltaT)
e=mc^2
constant volume
d/2

2. third kinematic
hc/wavelength
Q=CV
V^2=(Vo)^2 +2a*change in x
0

3. heat required to melt a substance
(1/Do) + (1/Di) = (1/f)
M(Lf)
dSintheta=mwavelength
K |q||Q|/r^2

4. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
Joules/Columb
joules/second
delta x = (Vo)t + .5at^2

5. heat during a cyclic process (net heat)
(Wnet)/(Qin)
M(Lf)
rF
deltaU -deltaW

6. energy stored in a capacitor
qVB
net work = delta K
(Fn)(mu)
.5CV^2 or .5 Q^2/C or .5QV

7. equation for the first law of thermodynamics
deltaU = deltaQ + deltaW
e=mc^2
.5KA^2
pL/A

8. adibatic
no heat flow
pL/A
(No)(wavelength)=(Nn)(new wavelength)
m(v^2)/qvB

9. the units of power other than watts
joules/second
.5KA^2
GM*M/(r^2)
e=mc^2

10. force a charge in a Bfield
(Wnet)/(Qin)
AV=(A2)(V2)
qVB
pL/A

11. total capacitance of capacitors in series
elastic collision
1/((1/C)+(1/C)..........)
(No)(wavelength)=(Nn)(new wavelength)
2Pi * sqrt(l/g)

12. formula equating energy and mass
0
e=mc^2
h(Fo)
KI/r

13. the force on a charge moving parallel to a magnetic field
.5mV^2 + .5KA^2
0
d/2
no force (right hand rule)

14. formula to find the gauge pressure at the bottom of a pool
roegh
K |q||Q|/r^2
(hc/wavelength)=h(Fo) +(Vs)
no temp change

15. formula for constructive interference in a thin membrane with two phase changes
(1/Do) + (1/Di) = (1/f)
FV
2nt=mwavelength
net work = delta K

16. second kinematic
delta x = (Vo)t + .5at^2
net work = delta K
1/((1/C)+(1/C)..........)
2Pi * sqrt(l/g)

17. formula for Carnot efficiency
MC(deltaT)
((Th) -(Tl))/(Th)
Columbs/second
G M/((d/2)^2)

18. the units of current other than amps
(No)(wavelength)=(Nn)(new wavelength)
Columbs/second
KQ/r
sqrt(T/(m/))

19. force of friction
V = (Vo) + at
mV -m(Vo)
constant pressure
(Fn)(mu)

20. formula for charge stored in a capciator
Q=CV
(EMF)Rt/10
FV
dSintheta=mwavelength

21. energy of a photon if wavelength is known
.5mV^2 + .5KA^2
hc/wavelength
J= Ft
sqrt(3KT/m)

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
(I^2)RT
qV
K |q||Q|/r^2
net work = delta K

23. natural frequency of a closed tube of length L
VI
qE
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)

24. EMF of a battery having internal resistance R
h/wavelength
V+IR
KI/r
m(v^2)/qvB

25. forgotten power equation
FV
(I^2)RT
2Pi * sqrt(l/g)
opposite motion

26. formula for centripetal acceleration
Joules/Columb
(V^2)/r
BA
deltaU -deltaW

27. equation of continuity
AV=(A2)(V2)
frequency never changes for light problems
Q=CV
KQ/r

28. pressure
deltaU = deltaQ + deltaW
(Fn)(mu)
(No)(wavelength)=(Nn)(new wavelength)
F/A

29. formula for impulse involving momentum
G M/((d/2)^2)
pL/A
(1/Do) + (1/Di) = (1/f)
mV -m(Vo)

30. voltage induced in a rod moving through a uniform magnetic field
KQ/r
rF
M(Lf)
BLv

31. velocity of an electrion as it exitws from the hole
qrB/m
0
2Pi * sqrt(l/g)
L -LCostheta

32. formula relating voltage and electric field
V = (Vo) + at
Ed=V
.5CV^2 or .5 Q^2/C or .5QV
(Patm) + (Pgauge)

33. formula for energy of a spring mass when spring is at maximum displacement
h/mv
roegh
.5KA^2
V+IR

34. formula to find the absoluate pressure at the bottom of a pool
(No)(wavelength)=(Nn)(new wavelength)
V^2=(Vo)^2 +2a*change in x
d/2
(Patm) + (Pgauge)

35. force of frction on an incline
no force (right hand rule)
perfectly inelastic collision
(EMF)Rt/10
mgCostheta(mu)d

36. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
BA
G M/((d/2)^2)
(1/Do) + (1/Di) = (1/f)
.5mV^2 + .5KA^2

37. 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)
(V^2)/R
MC(deltaT)
e=mc^2

38. velocity of waves on a string if tension is known
sqrt(T/(m/))
deltaU = deltaQ + deltaW
2Pi * sqrt(l/g)
.5CV^2 or .5 Q^2/C or .5QV

39. formula for efficiency not using work out
.5CV^2 or .5 Q^2/C or .5QV
(V^2)/R
((Qin) -(Qout))/(Qin)
Q=CV

40. formula for power with current and resistance
(V^2)/r
M(Lf)
(I^2)R
joules/second

41. force of gravity between two objects of mass m
((Th) -(Tl))/(Th)
GM*M/(r^2)
sqrt(3KT/m)
no force (right hand rule)

42. formula for critical angle
frequency never changes for light problems
1/((1/C)+(1/C)..........)
(N2)/(N1)
h/wavelength

43. what direction is friction?
(V^2)/r
.5mV^2 + .5KA^2
opposite motion
(Fn)(mu)

44. resistance of a wire
V+IR
(V^2)/R
pL/A
F/A

45. formula for buoyant force
BLv
pL/A
roeVg
V+IR

46. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
GM*M/(r^2)
V = (Vo) + at
(hc/wavelength)=h(Fo) +(Vs)

47. the electric force between two objects of charge Q
MC(deltaT)
GM*M/(r^2)
K |q||Q|/r^2
(hc/wavelength)=h(Fo) +(Vs)

48. formula for the wavelength (debroglie wavelength) of a moving particle
h/mv
h/wavelength
M(Lf)
G M/((d/2)^2)

49. electric field in a distance r from a charge
hc/wavelength
-KA
k|Q|/r^2
qVB

50. velocity of a molecule of gas
h/mv
sqrt(3KT/m)
KQ/r
h/wavelength