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Test your basic knowledge |
AP Physics Formulas
Start Test
Study First
Subjects
:
science
,
ap
,
physics
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. total capacitance of capacitors in series
no heat flow
rF
1/((1/C)+(1/C)..........)
qrB/m
2. equation for the first law of thermodynamics
m(v^2)/qvB
h/wavelength
deltaU = deltaQ + deltaW
VI
3. formula for constructive interference in a thin membrane with two phase changes
k|Q|/r^2
qVB
F/A
2nt=mwavelength
4. formula for period of a pendulum
sqrt(T/(m/))
2Pi * sqrt(l/g)
opposite motion
roegh
5. formula equating energy and mass
.5mV^2 + .5KA^2
(Di)/(Do) or (Hi)/(Ho)
dSintheta=mwavelength
e=mc^2
6. pressure
(Patm) + (Pgauge)
h/wavelength
F/A
GM*M/(r^2)
7. formula for finding the momentum of a photon
.5mV^2 + .5KA^2
h/wavelength
m(v^2)/qvB
L -LCostheta
8. formula for power with current and voltage
AV=(A2)(V2)
1/((1/C)+(1/C)..........)
L -LCostheta
VI
9. electric field in a distance r from a charge
n(Cv)(deltaT)
k|Q|/r^2
BLv
Ed=V
10. formula for Carnot efficiency
opposite motion
.5mV^2 + .5KA^2
sqrt(T/(m/))
((Th) -(Tl))/(Th)
11. formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
elastic collision
Ed=V
net work = delta K
qV
12. resistance of a wire
.5mV^2 + .5KA^2
(V^2)/r
pL/A
h(Fo)
13. adibatic
perfectly inelastic collision
qVB
J= Ft
no heat flow
14. the force on a charge in an electric field
qE
qrB/m
AV=(A2)(V2)
pL/A
15. velocity of a molecule of gas
(Fn)(mu)
sqrt(3KT/m)
G M/((d/2)^2)
VI
16. new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)
G M/((d/2)^2)
V^2=(Vo)^2 +2a*change in x
(V^2)/R
17. formula for impulse involving momentum
rF
mV -m(Vo)
h/mv
qrB/m
18. isobaric
1/((1/C)+(1/C)..........)
BA
constant pressure
(Patm) + (Pgauge)
19. new frequency of light as it enters a new substance
V = (Vo) + at
frequency never changes for light problems
(I^2)RT
(Patm) + (Pgauge)
20. heat required to melt a substance
M(Lf)
hc/wavelength
n(Cv)(deltaT)
1/((1/C)+(1/C)..........)
21. formula for energy of a spring mass when spring is at maximum displacement
roegh
m(v^2)/qvB
.5KA^2
qE
22. magnification equation
(Wnet)/(Qin)
joules/second
(Di)/(Do) or (Hi)/(Ho)
V^2=(Vo)^2 +2a*change in x
23. electric potential a distance r from a charge
KQ/r
(V^2)/r
KI/r
((Qin) -(Qout))/(Qin)
24. formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)
opposite motion
V^2=(Vo)^2 +2a*change in x
(Fn)(mu)
25. hooke's law force of a spring
K |q||Q|/r^2
-KA
dSintheta=mwavelength
h/mv
26. velocity of a charge traveling at a constant veloc ity through crossed E and B fields
sqrt(T/(m/))
h/mv
E/B
k|Q|/r^2
27. the units of power other than watts
constant pressure
joules/second
FV
KQ/r
28. formula relating voltage and electric field
qV
roeVg
Ed=V
hc/wavelength
29. type of collision where K is conserved
FV
elastic collision
1/2wavelength
KI/r
30. what direction is friction?
sqrt(3KT/m)
.5KA^2
opposite motion
dSintheta=mwavelength
31. formula for buoyant force
elastic collision
roeVg
sqrt(T/(m/))
V+IR
32. change in internal energy during a cyclic process
h/wavelength
qV
0
dSintheta=mwavelength
33. third kinematic
no heat flow
roeVg
V^2=(Vo)^2 +2a*change in x
(I^2)R
34. formula for constructive interference in a diffraction grating
M(Lf)
V = (Vo) + at
dSintheta=mwavelength
no force (right hand rule)
35. formula to find the gauge pressure at the bottom of a pool
(hc/wavelength)=h(Fo) +(Vs)
roegh
2Pi * sqrt(l/g)
(N2)/(N1)
36. the electric force between two objects of charge Q
(V^2)/r
no temp change
K |q||Q|/r^2
(Di)/(Do) or (Hi)/(Ho)
37. formula for impluse involving time
.5KA^2
J= Ft
0
mgCostheta(mu)d
38. formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)
F/A
deltaU = deltaQ + deltaW
-KA
39. isothermal
no temp change
sqrt(3KT/m)
Joules/Columb
BLv
40. radius of curvature of a charged particle as it enters a uniform magnetic field
KQ/r
m(v^2)/qvB
net work = delta K
(EMF)Rt/10
41. formula for efficiency of a heat engine using work out
(N2)/(N1)
sqrt(T/(m/))
(Wnet)/(Qin)
no force (right hand rule)
42. velocity of waves on a string if tension is known
opposite motion
sqrt(T/(m/))
qV
J= Ft
43. force of gravity between two objects of mass m
E/B
(N2)/(N1)
constant pressure
GM*M/(r^2)
44. formula for height of the block (at the start of a pendulum string) in terms of theta and L
L -LCostheta
M(Lf)
nSintheta=nsintheta
elastic collision
45. formula for torque
FV
rF
KI/r
(Fn)(mu)
46. units for voltage other than volts
K |q||Q|/r^2
V+IR
Joules/Columb
(3/2)nRdeltaT
47. focal length of a mirror with radius d
d/2
1/((1/C)+(1/C)..........)
qV
(Patm) + (Pgauge)
48. formula for charge stored in a capciator
V = (Vo) + at
2Pi * sqrt(l/g)
1/4wavelength
Q=CV
49. formula for finding magnetic flux
BA
sqrt(3KT/m)
KI/r
J= Ft
50. velocity of an electrion as it exitws from the hole
.5mV^2 + .5KA^2
qrB/m
-KA
Ed=V