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. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
(1/Do) + (1/Di) = (1/f)
h/mv
F/A
E/B

2. the electric force between two objects of charge Q
K |q||Q|/r^2
(N2)/(N1)
V+IR
V = (Vo) + at

3. hooke's law force of a spring
-KA
Columbs/second
BA
M(Lf)

4. force of gravity between two objects of mass m
rF
(hc/wavelength)=h(Fo) +(Vs)
h(Fo)
GM*M/(r^2)

5. formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
pL/A
V+IR
G M/((d/2)^2)
V = (Vo) + at

6. equation for the first law of thermodynamics
(Patm) + (Pgauge)
h(Fo)
deltaU = deltaQ + deltaW
GM*M/(r^2)

7. third kinematic
mgCostheta(mu)d
k|Q|/r^2
E/B
V^2=(Vo)^2 +2a*change in x

8. the units of power other than watts
joules/second
VI
constant volume
deltaU -deltaW

9. second kinematic
qV
(Patm) + (Pgauge)
delta x = (Vo)t + .5at^2
qVB

10. formula for period of a pendulum
(I^2)R
(V^2)/r
MC(deltaT)
2Pi * sqrt(l/g)

11. formula for energy of a spring mass when spring is at maximum displacement
(Wnet)/(Qin)
qrB/m
(V^2)/r
.5KA^2

12. first kinematic
constant pressure
m(v^2)/qvB
delta x = (Vo)t + .5at^2
V = (Vo) + at

13. type of collision where K is not conserved
inelastic collision
d/2
Joules/Columb
hc/wavelength

14. formula for constructive interference in a diffraction grating
no heat flow
dSintheta=mwavelength
h/mv
h/wavelength

15. velocity of a molecule of gas
V = (Vo) + at
sqrt(3KT/m)
qrB/m
dSintheta=mwavelength

16. the force on a charge in an electric field
qE
FV
G M/((d/2)^2)
KI/r

17. 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
dSintheta=mwavelength
no force (right hand rule)
V^2=(Vo)^2 +2a*change in x

18. voltage induced in a rod moving through a uniform magnetic field
BLv
nSintheta=nsintheta
qE
GM*M/(r^2)

19. what direction is friction?
opposite motion
m(v^2)/qvB
no force (right hand rule)
M(Lf)

20. formula for efficiency of a heat engine using work out
no temp change
(Wnet)/(Qin)
constant pressure
1/((1/C)+(1/C)..........)

21. formula for power with current and resistance
V = (Vo) + at
2Pi * sqrt(l/g)
(I^2)R
inelastic collision

22. formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2
MC(deltaT)
((Th) -(Tl))/(Th)
delta x = (Vo)t + .5at^2

23. resistance of a wire
k|Q|/r^2
m(v^2)/qvB
net work = delta K
pL/A

24. formula to find the absoluate pressure at the bottom of a pool
(No)(wavelength)=(Nn)(new wavelength)
(Patm) + (Pgauge)
mV -m(Vo)
qVB

25. formula for charge stored in a capciator
(hc/wavelength)=h(Fo) +(Vs)
hc/wavelength
Q=CV
(V^2)/r

26. formula relating voltage and electric field
Ed=V
2Pi * sqrt(l/g)
KQ/r
E/B

27. work energy theorum
VI
net work = delta K
qVB
n(Cv)(deltaT)

28. formula for centripetal acceleration
qE
n(Cv)(deltaT)
(V^2)/r
dSintheta=mwavelength

29. electric potential a distance r from a charge
qE
G M/((d/2)^2)
(V^2)/r
KQ/r

30. formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
elastic collision
MC(deltaT)
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)

31. natural frequency of an open tube of length L
mgCostheta(mu)d
m(v^2)/qvB
1/2wavelength
L -LCostheta

32. formula for critical angle
F/A
(N2)/(N1)
qVB
inelastic collision

33. heat during an isometric process
n(Cv)(deltaT)
qV
dSintheta=mwavelength
elastic collision

34. formula for finding the work function of a metal if the cutoff frequency is known
1/4wavelength
(hc/wavelength)=h(Fo) +(Vs)
h(Fo)
frequency never changes for light problems

35. change in internal energy during a cyclic process
FV
h/mv
0
.5KA^2

36. formula for change in internal energy in a cosnstat volume PV process
.5KA^2
.5CV^2 or .5 Q^2/C or .5QV
(3/2)nRdeltaT
no force (right hand rule)

37. force of friction
Ed=V
2Pi * sqrt(l/g)
-KA
(Fn)(mu)

38. velocity of waves on a string if tension is known
sqrt(T/(m/))
h/mv
(3/2)nRdeltaT
V^2=(Vo)^2 +2a*change in x

39. equation of continuity
deltaU = deltaQ + deltaW
AV=(A2)(V2)
perfectly inelastic collision
(3/2)nRdeltaT

40. lens/mirror equation
deltaU -deltaW
(I^2)R
(1/Do) + (1/Di) = (1/f)
1/4wavelength

41. radius of curvature of a charged particle as it enters a uniform magnetic field
.5KA^2
h(Fo)
(V^2)/r
m(v^2)/qvB

42. formula equating energy and mass
e=mc^2
.5mV^2 + .5KA^2
mgCostheta(mu)d
-KA

43. heat required to melt a substance
M(Lf)
opposite motion
no temp change
1/((1/C)+(1/C)..........)

44. pressure
F/A
deltaU -deltaW
delta x = (Vo)t + .5at^2
K |q||Q|/r^2

45. heat during a cyclic process (net heat)
deltaU -deltaW
BLv
mgCostheta(mu)d
V+IR

46. natural frequency of a closed tube of length L
qE
rF
FV
1/4wavelength

47. formula for the wavelength (debroglie wavelength) of a moving particle
constant pressure
h/mv
roeVg
(Patm) + (Pgauge)

48. formula for height of the block (at the start of a pendulum string) in terms of theta and L
((Qin) -(Qout))/(Qin)
Q=CV
L -LCostheta
(V^2)/r

49. formula for power with Voltage and resistance
h/mv
mV -m(Vo)
no heat flow
(V^2)/R

50. energy stored in a capacitor
mgCostheta(mu)d
mV -m(Vo)
.5CV^2 or .5 Q^2/C or .5QV
1/4wavelength