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. snells law
n(Cv)(deltaT)
no force (right hand rule)
nSintheta=nsintheta
Q=CV

2. force of gravity between two objects of mass m
BA
k|Q|/r^2
GM*M/(r^2)
M(Lf)

3. type of collision where objects stick togerther
mV -m(Vo)
perfectly inelastic collision
(No)(wavelength)=(Nn)(new wavelength)
k|Q|/r^2

4. 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
K |q||Q|/r^2
M(Lf)
AV=(A2)(V2)

5. formula for change in internal energy in a cosnstat volume PV process
V^2=(Vo)^2 +2a*change in x
((Qin) -(Qout))/(Qin)
mV -m(Vo)
(3/2)nRdeltaT

6. formula for impulse involving momentum
roegh
no heat flow
mV -m(Vo)
(I^2)R

7. heat during an isometric process
.5KA^2
joules/second
n(Cv)(deltaT)
((Th) -(Tl))/(Th)

8. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
n(Cv)(deltaT)
1/((1/C)+(1/C)..........)
deltaU = deltaQ + deltaW
.5mV^2 + .5KA^2

9. the units of power other than watts
roegh
e=mc^2
nSintheta=nsintheta
joules/second

10. formula for finding the momentum of a photon
h/wavelength
((Qin) -(Qout))/(Qin)
roeVg
-KA

11. work energy theorum
G M/((d/2)^2)
constant pressure
net work = delta K
deltaU = deltaQ + deltaW

12. velocity of a molecule of gas
(V^2)/R
sqrt(3KT/m)
2Pi * sqrt(l/g)
(1/Do) + (1/Di) = (1/f)

13. focal length of a mirror with radius d
.5CV^2 or .5 Q^2/C or .5QV
(Wnet)/(Qin)
d/2
F/A

14. new frequency of light as it enters a new substance
frequency never changes for light problems
h/wavelength
mV -m(Vo)
no force (right hand rule)

15. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(1/Do) + (1/Di) = (1/f)
E/B
2Pi * sqrt(l/g)
constant pressure

16. isometric
constant volume
qrB/m
pL/A
2Pi * sqrt(l/g)

17. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
frequency never changes for light problems
qrB/m
V = (Vo) + at
G M/((d/2)^2)

18. formula for constructive interference in a thin membrane with two phase changes
.5CV^2 or .5 Q^2/C or .5QV
k|Q|/r^2
BLv
2nt=mwavelength

19. hooke's law force of a spring
V = (Vo) + at
-KA
sqrt(3KT/m)
opposite motion

20. energy of a photon if wavelength is known
qVB
hc/wavelength
no heat flow
(N2)/(N1)

21. lens/mirror equation
no heat flow
constant volume
(1/Do) + (1/Di) = (1/f)
1/2wavelength

22. formula for impluse involving time
deltaU -deltaW
.5CV^2 or .5 Q^2/C or .5QV
J= Ft
mV -m(Vo)

23. formula for power with current and resistance
(I^2)R
Columbs/second
(N2)/(N1)
(1/Do) + (1/Di) = (1/f)

24. new wavelength of light as it enters a new substance
M(Lf)
F/A
(No)(wavelength)=(Nn)(new wavelength)
net work = delta K

25. the units of current other than amps
E/B
sqrt(T/(m/))
Columbs/second
qVB

26. formula for critical angle
Q=CV
(N2)/(N1)
h/wavelength
qV

27. energy stored in a capacitor
(Patm) + (Pgauge)
(V^2)/R
((Qin) -(Qout))/(Qin)
.5CV^2 or .5 Q^2/C or .5QV

28. formula for efficiency not using work out
((Th) -(Tl))/(Th)
((Qin) -(Qout))/(Qin)
(Wnet)/(Qin)
(V^2)/R

29. heat required to melt a substance
no force (right hand rule)
(I^2)R
mV -m(Vo)
M(Lf)

30. 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
((Th) -(Tl))/(Th)
rF
E/B

31. formula for power with Voltage and resistance
.5mV^2 + .5KA^2
h/mv
(V^2)/R
k|Q|/r^2

32. pressure
qVB
(3/2)nRdeltaT
F/A
MC(deltaT)

33. formula for period of a pendulum
qV
2Pi * sqrt(l/g)
(Di)/(Do) or (Hi)/(Ho)
perfectly inelastic collision

34. formula for constructive interference in a diffraction grating
dSintheta=mwavelength
opposite motion
J= Ft
inelastic collision

35. EMF of a battery having internal resistance R
V+IR
((Qin) -(Qout))/(Qin)
h(Fo)
roeVg

36. formula for finding magnetic flux
BA
0
perfectly inelastic collision
GM*M/(r^2)

37. radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB
no temp change
deltaU -deltaW
mV -m(Vo)

38. formula for torque
1/((1/C)+(1/C)..........)
rF
sqrt(3KT/m)
2nt=mwavelength

39. electric potential a distance r from a charge
0
opposite motion
1/4wavelength
KQ/r

40. type of collision where K is conserved
e=mc^2
((Th) -(Tl))/(Th)
m(v^2)/qvB
elastic collision

41. electric field in a distance r from a charge
KI/r
no temp change
deltaU -deltaW
k|Q|/r^2

42. forgotten power equation
(I^2)RT
FV
V^2=(Vo)^2 +2a*change in x
elastic collision

43. type of collision where K is not conserved
inelastic collision
2nt=mwavelength
-KA
1/4wavelength

44. formula for Carnot efficiency
((Th) -(Tl))/(Th)
M(Lf)
L -LCostheta
(1/Do) + (1/Di) = (1/f)

45. what direction is friction?
opposite motion
h/mv
(V^2)/r
0

46. adibatic
no heat flow
deltaU -deltaW
MC(deltaT)
k|Q|/r^2

47. natural frequency of an open tube of length L
2Pi * sqrt(l/g)
(Wnet)/(Qin)
F/A
1/2wavelength

48. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
nSintheta=nsintheta
V^2=(Vo)^2 +2a*change in x
qV
E/B

49. total capacitance of capacitors in series
Ed=V
(V^2)/R
1/((1/C)+(1/C)..........)
(hc/wavelength)=h(Fo) +(Vs)

50. third kinematic
net work = delta K
V^2=(Vo)^2 +2a*change in x
perfectly inelastic collision
.5KA^2