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. heat required to melt a substance
nSintheta=nsintheta
V = (Vo) + at
constant volume
M(Lf)

2. formula for impluse involving time
mgCostheta(mu)d
inelastic collision
G M/((d/2)^2)
J= Ft

3. heat required to change temperature of a substance
MC(deltaT)
V+IR
deltaU = deltaQ + deltaW
no temp change

4. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
BA
(No)(wavelength)=(Nn)(new wavelength)
V = (Vo) + at
qV

5. isometric
deltaU = deltaQ + deltaW
nSintheta=nsintheta
constant volume
(Di)/(Do) or (Hi)/(Ho)

6. isothermal
FV
no temp change
(V^2)/r
qrB/m

7. formula for finding the momentum of a photon
h/wavelength
constant volume
dSintheta=mwavelength
sqrt(3KT/m)

8. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
G M/((d/2)^2)
qE
1/2wavelength

9. the force on a charge moving parallel to a magnetic field
roegh
Ed=V
elastic collision
no force (right hand rule)

10. type of collision where K is conserved
elastic collision
pL/A
0
MC(deltaT)

11. velocity of waves on a string if tension is known
sqrt(T/(m/))
elastic collision
VI
.5mV^2 + .5KA^2

12. formula equating energy and mass
(Di)/(Do) or (Hi)/(Ho)
((Th) -(Tl))/(Th)
e=mc^2
(hc/wavelength)=h(Fo) +(Vs)

13. the force on a charge in an electric field
elastic collision
qE
V^2=(Vo)^2 +2a*change in x
J= Ft

14. electric field in a distance r from a charge
m(v^2)/qvB
opposite motion
Joules/Columb
k|Q|/r^2

15. the units of current other than amps
(No)(wavelength)=(Nn)(new wavelength)
no heat flow
hc/wavelength
Columbs/second

16. voltage induced in a rod moving through a uniform magnetic field
constant pressure
V^2=(Vo)^2 +2a*change in x
BLv
qVB

17. natural frequency of a closed tube of length L
.5KA^2
1/4wavelength
1/2wavelength
V^2=(Vo)^2 +2a*change in x

18. adibatic
inelastic collision
constant volume
no heat flow
(N2)/(N1)

19. formula for efficiency not using work out
rF
J= Ft
((Qin) -(Qout))/(Qin)
(V^2)/R

20. formula for power with current and voltage
VI
e=mc^2
.5CV^2 or .5 Q^2/C or .5QV
(I^2)RT

21. formula for Carnot efficiency
h/mv
((Th) -(Tl))/(Th)
h(Fo)
(V^2)/r

22. velocity of an electrion as it exitws from the hole
AV=(A2)(V2)
qrB/m
constant pressure
F/A

23. energy stored in a capacitor
qVB
(V^2)/r
.5CV^2 or .5 Q^2/C or .5QV
V^2=(Vo)^2 +2a*change in x

24. force a charge in a Bfield
roeVg
qVB
KQ/r
(I^2)R

25. velocity of a molecule of gas
2Pi * sqrt(l/g)
inelastic collision
nSintheta=nsintheta
sqrt(3KT/m)

26. type of collision where objects stick togerther
perfectly inelastic collision
roegh
mV -m(Vo)
1/2wavelength

27. resistance of a wire
V = (Vo) + at
pL/A
G M/((d/2)^2)
roegh

28. formula for height of the block (at the start of a pendulum string) in terms of theta and L
2nt=mwavelength
no temp change
L -LCostheta
(I^2)R

29. EMF of a battery having internal resistance R
n(Cv)(deltaT)
V+IR
BLv
M(Lf)

30. formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
frequency never changes for light problems
.5KA^2
(I^2)RT
BLv

31. radius of curvature of a charged particle as it enters a uniform magnetic field
MC(deltaT)
joules/second
dSintheta=mwavelength
m(v^2)/qvB

32. units for voltage other than volts
Joules/Columb
(No)(wavelength)=(Nn)(new wavelength)
nSintheta=nsintheta
n(Cv)(deltaT)

33. focal length of a mirror with radius d
nSintheta=nsintheta
V+IR
k|Q|/r^2
d/2

34. what direction is friction?
elastic collision
qV
.5KA^2
opposite motion

35. formula for charge stored in a capciator
Q=CV
E/B
(I^2)R
K |q||Q|/r^2

36. hooke's law force of a spring
roeVg
(N2)/(N1)
dSintheta=mwavelength
-KA

37. forgotten power equation
dSintheta=mwavelength
FV
.5mV^2 + .5KA^2
2Pi * sqrt(l/g)

38. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
MC(deltaT)
(Fn)(mu)
BLv
(hc/wavelength)=h(Fo) +(Vs)

39. formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength
F/A
(I^2)R
no temp change

40. formula for buoyant force
(I^2)R
(V^2)/r
qVB
roeVg

41. the units of power other than watts
qrB/m
(No)(wavelength)=(Nn)(new wavelength)
joules/second
KI/r

42. magnification equation
sqrt(3KT/m)
(Di)/(Do) or (Hi)/(Ho)
no heat flow
0

43. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
(3/2)nRdeltaT
h/wavelength
2Pi * sqrt(l/g)

44. second kinematic
nSintheta=nsintheta
constant pressure
delta x = (Vo)t + .5at^2
frequency never changes for light problems

45. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(I^2)RT
(EMF)Rt/10
m(v^2)/qvB
E/B

46. formula for critical angle
rF
pL/A
2Pi * sqrt(l/g)
(N2)/(N1)

47. formula for centripetal acceleration
(hc/wavelength)=h(Fo) +(Vs)
E/B
((Qin) -(Qout))/(Qin)
(V^2)/r

48. formula for efficiency of a heat engine using work out
constant pressure
(Wnet)/(Qin)
(V^2)/r
m(v^2)/qvB

49. force of friction
constant pressure
qE
(Fn)(mu)
delta x = (Vo)t + .5at^2

50. formula for torque
(N2)/(N1)
rF
KI/r
qV