Test your basic knowledge |

AP Physics B: 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. snells law
E=F/q (point charge)=KQ1/r BREAK INTO VECTORS
?U=W - no heat added system (Q=0)
Force of Friction
n1sin?1=n2sin?2

2. Velocity of sound in a strong
t=Fr - force must be perpendicular to the moment arm and the axis of rotation
T=2pvm/k
V=vFt/(m/l)
billiard balls - no sticking total energy is conserved

3. Bernoulli's Equation [Conservation of energy]
?v=0 - w=0 area under the curve is zero
Fgy=FgSin?
P1atm + 1/2rhoV1 + rhogh= P2atm + 1/2rhoV2 + rhogh
Force of Gravity

4. Negative torque
shows magnetic field created by a current. Thumb in direction of the current - fingers show direction of field
?L=(coefficient of linear expansion)aLinitial?T
clockwise
a=v/r

5. Centripetal force
f=mv/r
L=n/2?
P=Patm + rho g h
E=-N Change in flux/?t=Blv (v=velocity of the wire)

6. Net force/apparent weight broken done
Fnet=rhofluid vfluid g -rho object vobject g where the volumes are usually equal
sum of voltages must be zero
Fgy=FgSin?
thumb in direction of proton - fingers in direction of magnetic field and palm will show you force

7. Force on a current carrying wire in a magnetic field
Continuity
Fx=mv/r=FnSin?
?U=W - no heat added system (Q=0)
F=BIL

8. Isobaric process
P=F/A=rho(g)h
billiard balls - no sticking total energy is conserved
Pressure is constant ?P=0 w=-P?V
C=KepA/d

9. Continuity equation [Conservation of mass]
rho=m/v
n1sin?1=n2sin90
Vab=Rated voltage-IR (r=internal resistance)
A1V1=A2V2

10. Simple harmonic motion - pendulum
T=2pvl/g
Spring Potential Energy
P=Patm + rho g h
Ideal Gas Law

11. Banked curve - sum of the forces in the y
Fy=FnCos?-Fg
KE=1/2mv
QH=QL +W and e=W/QH
P=F/A=rho(g)h

12. Capacitors in series
C=KepA/d
W=Fd=mad - direction of force must be same as direction of distance
V=added - Q=constant - C= 1/C
W is positive when work is done on the system - compression - W is negative when work is done by the system - expansion

13. Basic thermo equation
QH=QL +W and e=W/QH
T=2pvl/g
sum of voltages must be zero
?U=Q + W - heat added= heat + work

14. Kinetic energy
KE=1/2mv
Pressure is constant ?P=0 w=-P?V
E=F/q (point charge)=KQ1/r BREAK INTO VECTORS
P=IV

15. v = v(3RT)/M = v(3KT)/
Average Speed of each Molecule
W=Fd=mad - direction of force must be same as direction of distance
SG=rho object/10
Spring Potential Energy

16. Velocity of a wave
P=W/T=FD/T=FV
V=?f
I=?q/?t
Fgx=FgCos?

17. Absolute pressure
f=mv/r
Force of Spring
P=Patm + rho g h
Momentum

18. Force on a charged particle in a magnetic field
F=Bvsin?q
V=constant - Q=added - C=added
Flux (in webers)=Bcos?A
Kinematic with Velocity - Acceleration - and Displacement

19. Adiabatic process
Constructive: 2t=m? - Destructive: 2t=m?+1/2?
Vf=Vi+ at - Vf=Vi +2ad - d=1/2 a t +vit
?U=W - no heat added system (Q=0)
Fy=FnCos?-Fg

20. Electron volts
Spring Potential Energy
1ev=1.6E-19J
Continuity
Temperature is constant - ?U=0 - -Q=W

21. P = P0 + pgh
F=Bvsin?q
Kinematic with Velocity - Acceleration - and Displacement
Pressure from Depth
SG=rho object/10

22. F(buoy) = pVg
W=KEf-KEi
Pressure is constant ?P=0 w=-P?V
Archimedes Principle/Bouyancy
J=?vm=F?t

23. v = v0 + at
Fnx=FnSin?
General Pressure
Kinematic with Velocity - Acceleration - and Time
V=?f

24. Current
V=(331 +.6T) T=temp in Celsius
Spring Potential Energy
Fnet=Fb-Fg
I=?q/?t

25. Elastic collision
billiard balls - no sticking total energy is conserved
V=IR
V=Ed
T=2pvl/g

26. Simple density formula
rho=m/v
n1sin?1=n2sin90
Average Speed of each Molecule
t=Fr - force must be perpendicular to the moment arm and the axis of rotation

27. Kirchhoffs Junction rule
Archimedes Principle/Bouyancy
Momentum
Sum of all currents (I) entering=sum of all currents (I) leaving
Force of Gravity

28. Isothermal process
Temperature is constant - ?U=0 - -Q=W
W is positive when work is done on the system - compression - W is negative when work is done by the system - expansion
Fnet=rhofluid vfluid g -rho object vobject g where the volumes are usually equal
moment arm - perpendicular distance from the force to the axis of rotation

29. Electric field intensity
J=?vm=F?t
Force of Friction
E=F/q (point charge)=KQ1/r BREAK INTO VECTORS
PE=mgh

30. Resistivity in a wire
R=rho L/A A=cross sectional area
General Pressure
PV=nRT - PV=N (# of molecules)kb (bozons constant)T
F=Bvsin?q

31. Positive torque
V=vFt/(m/l)
Continuity
counterclockwise
in series - measures current - low resistance

32. vrms (2 equations)
F=ma
counterclockwise
v3kT/m [mass per molecule] - v3RT/M [molar mass]
KE=1/2mv

33. p = mv
f=mv/r
Ug= Gm1m2/r
Momentum
Continuity

34. P = F/A
clockwise
L=n/4? has to be odd numbers
Kinematic with Velocity - Acceleration - and Time
General Pressure

35. Engines (2 equations)
W=KEf-KEi
Flux (in webers)=Bcos?A
QH=QL +W and e=W/QH
PE=1/2kx

36. Momentum
Kinematic with Velocity - Acceleration - and Time
P=mv (Kg m/s) or (N s)
Average Speed of each Molecule
Fy=FnCos?-Fg

37. P(avg) = W/?t
v3kT/m [mass per molecule] - v3RT/M [molar mass]
Power from Energy
E=F/q (point charge)=KQ1/r BREAK INTO VECTORS
px and py are conserved

38. Period for a spring in simple harmonic motion
Ideal Gas Law
T=2pvm/k
Pin=Pout=Fin/Ain=Fout/Aout
Fnet=Fb-Fg

39. Banked curve - sum of the forces in the x
Force of Spring
on a solenoid wrap finger around direction of current - thumb will point in north pole direction
Fx=mv/r=FnSin?
Fnet=Fb-Fg

40. Capacitors in parallel
V=constant - Q=added - C=added
Adiabatic and isothermal processes ec= TH-TL/
General Pressure
F=kx

41. F(friction) = N
Ug= Gm1m2/r
Force of Gravity
Force of Friction
Centripetal Acceleration

42. Energy in a capacitor
Fx=mv/r=FnSin?
Centripetal Acceleration
1/2QV=U
P=W/T=FD/T=FV

43. On a banked curve in circular motion - Fn in the x is
Sum of all currents (I) entering=sum of all currents (I) leaving
on a solenoid wrap finger around direction of current - thumb will point in north pole direction
T=2pvl/g
Fnx=FnSin?

44. F-F or NF-NF
?L=(coefficient of linear expansion)aLinitial?T
Constructive: 2t=m? - Destructive: 2t=m?+1/2?
F=BIL
?U=W - no heat added system (Q=0)

45. K = (3/2)kT
V=added - I=constant - R= added
Average Molecular Kinetic Energy
P=W/T=FD/T=FV
n1sin?1=n2sin?2

46. Voltage-parallel plates
V=added - Q=constant - C= 1/C
W is positive when work is done on the system - compression - W is negative when work is done by the system - expansion
?L=(coefficient of linear expansion)aLinitial?T
V=Ed

47. e = abs(W/Q)
F=kx
F=kQ1Q2/r BREAK INTO VECTORS
Efficiency of a Heat Engine
Continuity

48. Impulse
J=?vm=F?t
F=ma
rho=m/v
Fgx=FgCos?

49. A1V1 = A2V2
Power from Energy
Fgy=FgSin?
Continuity
Period in General

50. Ammeter
Kinematic with Velocity - Acceleration - and Time
R=rho L/A A=cross sectional area
px and py are conserved
in series - measures current - low resistance

Test your basic knowledge |

AP Physics B: Formulas

13 Skills Types | 550 Pages | Only $9.95 | PDF / EPub, Kindle Ready

Link to This Test

Related Subjects