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. lens/mirror equation
(1/Do) + (1/Di) = (1/f)
pL/A
qVB
h/wavelength

2. equation of continuity
V^2=(Vo)^2 +2a*change in x
F/A
(I^2)RT
AV=(A2)(V2)

3. isothermal
mgCostheta(mu)d
n(Cv)(deltaT)
no temp change
1/2wavelength

4. adibatic
(Fn)(mu)
Joules/Columb
Ed=V
no heat flow

5. new wavelength of light as it enters a new substance
constant pressure
Ed=V
mgCostheta(mu)d
(No)(wavelength)=(Nn)(new wavelength)

6. natural frequency of an open tube of length L
h(Fo)
deltaU = deltaQ + deltaW
V^2=(Vo)^2 +2a*change in x
1/2wavelength

7. formula relating voltage and electric field
hc/wavelength
Ed=V
mV -m(Vo)
.5KA^2

8. the electric force between two objects of charge Q
(Di)/(Do) or (Hi)/(Ho)
.5KA^2
K |q||Q|/r^2
(1/Do) + (1/Di) = (1/f)

9. velocity of an electrion as it exitws from the hole
n(Cv)(deltaT)
Joules/Columb
qrB/m
opposite motion

10. formula equating energy and mass
h/mv
constant volume
e=mc^2
J= Ft

11. formula for buoyant force
((Th) -(Tl))/(Th)
k|Q|/r^2
GM*M/(r^2)
roeVg

12. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
net work = delta K
pL/A
deltaU = deltaQ + deltaW
G M/((d/2)^2)

13. formula to find the absoluate pressure at the bottom of a pool
-KA
F/A
(Patm) + (Pgauge)
qE

14. type of collision where K is conserved
(V^2)/r
mgCostheta(mu)d
no heat flow
elastic collision

15. formula for power with current and resistance
(hc/wavelength)=h(Fo) +(Vs)
(I^2)R
2Pi * sqrt(l/g)
(Patm) + (Pgauge)

16. what direction is friction?
BA
(No)(wavelength)=(Nn)(new wavelength)
opposite motion
qVB

17. velocity of a molecule of gas
(V^2)/r
nSintheta=nsintheta
sqrt(3KT/m)
roegh

18. forgotten power equation
roeVg
1/2wavelength
e=mc^2
FV

19. type of collision where K is not conserved
n(Cv)(deltaT)
inelastic collision
nSintheta=nsintheta
(3/2)nRdeltaT

20. focal length of a mirror with radius d
sqrt(3KT/m)
Q=CV
d/2
dSintheta=mwavelength

21. isobaric
V+IR
Columbs/second
constant pressure
roegh

22. magnification equation
(Di)/(Do) or (Hi)/(Ho)
m(v^2)/qvB
deltaU -deltaW
(Wnet)/(Qin)

23. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
KQ/r
dSintheta=mwavelength
.5mV^2 + .5KA^2
(Patm) + (Pgauge)

24. formula for the wavelength (debroglie wavelength) of a moving particle
n(Cv)(deltaT)
AV=(A2)(V2)
-KA
h/mv

25. force of friction
(Fn)(mu)
roeVg
constant pressure
Columbs/second

26. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)
V = (Vo) + at
1/((1/C)+(1/C)..........)
roeVg

27. formula for finding the magnetic field a distance r from a current carrying wire
L -LCostheta
G M/((d/2)^2)
KI/r
(I^2)RT

28. formula for centripetal acceleration
.5KA^2
(EMF)Rt/10
L -LCostheta
(V^2)/r

29. natural frequency of a closed tube of length L
((Th) -(Tl))/(Th)
1/4wavelength
roeVg
(1/Do) + (1/Di) = (1/f)

30. velocity of waves on a string if tension is known
sqrt(T/(m/))
hc/wavelength
k|Q|/r^2
GM*M/(r^2)

31. formula for height of the block (at the start of a pendulum string) in terms of theta and L
qVB
1/((1/C)+(1/C)..........)
L -LCostheta
0

32. heat during a cyclic process (net heat)
-KA
deltaU -deltaW
0
AV=(A2)(V2)

33. heat during an isometric process
qE
n(Cv)(deltaT)
delta x = (Vo)t + .5at^2
-KA

34. formula for efficiency not using work out
((Qin) -(Qout))/(Qin)
F/A
n(Cv)(deltaT)
no force (right hand rule)

35. formula for power with current and voltage
VI
mV -m(Vo)
h/mv
(Patm) + (Pgauge)

36. heat required to change temperature of a substance
constant volume
MC(deltaT)
h/mv
J= Ft

37. force of gravity between two objects of mass m
K |q||Q|/r^2
J= Ft
KQ/r
GM*M/(r^2)

38. radius of curvature of a charged particle as it enters a uniform magnetic field
no heat flow
.5KA^2
h/mv
m(v^2)/qvB

39. the force on a charge in an electric field
perfectly inelastic collision
joules/second
qE
L -LCostheta

40. the units of power other than watts
deltaU -deltaW
(Wnet)/(Qin)
joules/second
BA

41. type of collision where objects stick togerther
(Patm) + (Pgauge)
Ed=V
perfectly inelastic collision
(1/Do) + (1/Di) = (1/f)

42. formula for power with Voltage and resistance
k|Q|/r^2
n(Cv)(deltaT)
(V^2)/R
1/4wavelength

43. formula for change in internal energy in a cosnstat volume PV process
h/mv
(3/2)nRdeltaT
roegh
KI/r

44. formula for impluse involving time
F/A
h/mv
J= Ft
h/wavelength

45. isometric
constant volume
constant pressure
Joules/Columb
-KA

46. EMF of a battery having internal resistance R
dSintheta=mwavelength
h/mv
(V^2)/r
V+IR

47. resistance of a wire
n(Cv)(deltaT)
pL/A
AV=(A2)(V2)
(Di)/(Do) or (Hi)/(Ho)

48. heat required to melt a substance
no heat flow
dSintheta=mwavelength
F/A
M(Lf)

49. formula for finding magnetic flux
M(Lf)
BA
BLv
Q=CV

50. formula for energy of a spring mass when spring is at maximum displacement
.5KA^2
KQ/r
((Qin) -(Qout))/(Qin)
BLv