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AP Physics B: Formulas

Instructions:

Answer 50 questions in 15 minutes.
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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. Isovolumetric/isochoric
T=2pvm/k
?v=0 - w=0 area under the curve is zero
Kinetic Energy
Power from Energy

2. Voltage-parallel plates
V=Ed
A1V1=A2V2
Q=CV
Work

3. x = x0 + v0t + ½at²
T=2pvm/k
Kinematic with Displacement - Velocity - Acceleration - and Time
Bernoulli Principal
on a solenoid wrap finger around direction of current - thumb will point in north pole direction

4. Standard pressure and temperature and pressure
273K and 1.013E5 pa
V=Ed
PV=nRT - PV=N (# of molecules)kb (bozons constant)T
PE=mgh

5. 1st right hand rule
shows magnetic field created by a current. Thumb in direction of the current - fingers show direction of field
counterclockwise
P=Patm + rho g h
v3kT/m [mass per molecule] - v3RT/M [molar mass]

6. On an inclined plane - gravity in the x
F=Bvsin?q
Force of Gravity
t=Fr - force must be perpendicular to the moment arm and the axis of rotation
Fgx=FgCos?

7. Carnot engine
f=mv²/r
P=mv (Kg m/s) or (N s)
1ev=1.6E-19J
Adiabatic and isothermal processes ec= TH-TL/

8. Velocity of sound in a strong
V=added - I=constant - R= added
P=Patm + rho g h
F=BIL
V=vFt/(m/l)

9. Power (circuts)
T=2pvl/g
1/2QV=U
P=IV
PE=1/2kx²

10. Electron volts
Fny=FnCos?
PE=mgh
clockwise
1ev=1.6E-19J

11. H = (kA?T)/L
Fgx=FgCos?
F=kQ1Q2/r² BREAK INTO VECTORS
P=IV
Thermal Conductivity

12. Series Circuits
v3kT/m [mass per molecule] - v3RT/M [molar mass]
Force of Spring
V=added - I=constant - R= added
Constructive: 2t=m? - Destructive: 2t=m?+1/2?

13. Simple harmonic motion - pendulum
V=(331 +.6T) T=temp in Celsius
T=2pvl/g
P=W/T=FD/T=FV
PV=nRT - PV=N (# of molecules)kb (bozons constant)T

14. EMF (two formulas)
V=vFt/(m/l)
E=-N Change in flux/?t=Blv (v=velocity of the wire)
F=BIL
Fgy=FgSin?

15. v² = v0² + 2a(x-x0)
Efficiency of a Heat Engine
?L=(coefficient of linear expansion)aLinitial?T
Kinematic with Velocity - Acceleration - and Displacement
a=v²/r

16. P(avg) = W/?t
F=Bvsin?q
Centripetal Acceleration
Gravitational Potential Energy Anywhere
Power from Energy

17. Current
?P=rho(g)?h
clockwise
I=?q/?t
Flux (in webers)=Bcos?A

18. PE of a spring
T=2pvl/g
T=2pvm/k
PE=1/2kx²
E=F/q (point charge)=KQ1/r² BREAK INTO VECTORS

19. U(gravitational) = -(Gm1m2/r)
Gravitational Potential Energy Anywhere
Continuity
1ev=1.6E-19J
Q=CV

20. Hookes law
F=kx
Sum of all currents (I) entering=sum of all currents (I) leaving
P=mv (Kg m/s) or (N s)
SG=rho object/10³

21. Electric field intensity
E=F/q (point charge)=KQ1/r² BREAK INTO VECTORS
q=K?AT/L
T=2pr/v
QH=QL +W and e=W/QH

22. Period for a spring in simple harmonic motion
Ideal Gas Law
Temperature is constant - ?U=0 - -Q=W
Pressure is constant ?P=0 w=-P?V
T=2pvm/k

23. Vsound
P=mv (Kg m/s) or (N s)
V=(331 +.6T) T=temp in Celsius
PV=nRT - PV=N (# of molecules)kb (bozons constant)T
Spring Potential Energy

24. Net work
Pressure is constant ?P=0 w=-P?V
moment arm - perpendicular distance from the force to the axis of rotation
Fny=FnCos?
W=KEf-KEi

25. Parallel Circuits
P1atm + 1/2rhoV1² + rhogh= P2atm + 1/2rhoV2² + rhogh
V=constant - I=added - R=1/r added
PE=1/2kx²
E=F/q (point charge)=KQ1/r² BREAK INTO VECTORS

26. heat flow through a window or door
Force of Spring
V=(331 +.6T) T=temp in Celsius
J=?vm=F?t
q=K?AT/L

27. F(gravity) = -(Gm1m2/r²)
Constructive: 2t=m? - Destructive: 2t=m?+1/2?
Force of Gravity
Q=CV
Average Speed of each Molecule

28. W
?v=0 - w=0 area under the curve is zero
Period in General
W is positive when work is done on the system - compression - W is negative when work is done by the system - expansion
PE=1/2kx²

29. Voltmeter
PE=1/2kx²
added in parallel - measures volts - high resistance
P=Patm + rho g h
Ideal Gas Law

30. Momentum
added in parallel - measures volts - high resistance
P=mv (Kg m/s) or (N s)
Pressure from Depth
billiard balls - no sticking total energy is conserved

31. P = F/A
?v=0 - w=0 area under the curve is zero
General Pressure
Gravitational Potential Energy Anywhere
Thermal Conductivity

32. natural frequencies in a closed tube
L=n/4? has to be odd numbers
F=Bvsin?q
billiard balls - no sticking total energy is conserved
Pressure is constant ?P=0 w=-P?V

33. F-NF or vice versa
Power from Force
Constructive: 2t=m?+1/2? - Destructive: 2t=m?
Force of Gravity
on a solenoid wrap finger around direction of current - thumb will point in north pole direction

34. Period for a pendulum in simple harmonic motion
W=KEf-KEi
C=KepA/d
L=n/2?
T=2pvl/g

35. Centripetal acceleration
Power from Energy
KE=1/2mv²
a=v²/r
V=W/Q=KQ/r NO VECTORS

36. e = (T(hot) - T(cold))/T(hot)
billiard balls - no sticking total energy is conserved
?P=rho(g)?h
Efficiency of an Ideal Engine
V=added - I=constant - R= added

37. F(buoy) = pVg
Constructive: 2t=m? - Destructive: 2t=m?+1/2?
P=mv (Kg m/s) or (N s)
Fgx=FgCos?
Archimedes Principle/Bouyancy

38. Average kinetic energy
Centripetal Acceleration
Kavg=(3/2)kbT
?v=0 - w=0 area under the curve is zero
V=?f

39. p = mv
Momentum
on a solenoid wrap finger around direction of current - thumb will point in north pole direction
Kinetic Energy
?L=(coefficient of linear expansion)aLinitial?T

40. Voltage (circuts)
Kinetic Energy
V=IR
Fx=mv²/r=FnSin?
P=mv (Kg m/s) or (N s)

41. Voltage-charges formula (2)
V=added - Q=constant - C= 1/C
R=rho L/A A=cross sectional area
V=W/Q=KQ/r NO VECTORS
F=kQ1Q2/r² BREAK INTO VECTORS

42. 3rd right hand rule
thumb in direction of proton - fingers in direction of magnetic field and palm will show you force
SG=rho object/10³
F=kx
V=constant - Q=added - C=added

43. Continuity equation [Conservation of mass]
Force of Spring
F=ma
A1V1=A2V2
Bernoulli Principal

44. v = v0 + at
Temperature is constant - ?U=0 - -Q=W
Kinematic with Velocity - Acceleration - and Time
Ug= Gm1m2/r
Fny=FnCos?

45. F-F or NF-NF
Average Molecular Kinetic Energy
V=?f
billiard balls - no sticking total energy is conserved
Constructive: 2t=m? - Destructive: 2t=m?+1/2?

46. U(spring) = ½kx²
V=constant - I=added - R=1/r added
Gravitational Potential Energy Anywhere
Spring Potential Energy
?U=Q + W - heat added= heat + work

47. vrms (2 equations)
Fny=FnCos?
v3kT/m [mass per molecule] - v3RT/M [molar mass]
Vab=Rated voltage-IR (r=internal resistance)
F=Bvsin?q

48. Pascals principle
Pin=Pout=Fin/Ain=Fout/Aout
v3kT/m [mass per molecule] - v3RT/M [molar mass]
T=2pvm/k
T=2pvm/k

49. Force on a charged particle in a magnetic field
F=Bvsin?q
Flux (in webers)=Bcos?A
V=constant - I=added - R=1/r added
Pressure is constant ?P=0 w=-P?V

50. The three kinematics equations
Vf=Vi+ at - Vf²=Vi² +2ad - d=1/2 a t² +vit
Kinematic with Velocity - Acceleration - and Displacement
sum of voltages must be zero
Efficiency of a Heat Engine