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. Natural frequency open tube/not in a tub
Vab=Rated voltage-IR (r=internal resistance)
L=n/2?
Constructive: 2t=m?+1/2? - Destructive: 2t=m?
P1atm + 1/2rhoV1² + rhogh= P2atm + 1/2rhoV2² + rhogh

2. Work - simple formula
W=Fd=mad - direction of force must be same as direction of distance
Fy=FnCos?-Fg
P=W/T=FD/T=FV
Bernoulli Principal

3. Impulse
Pressure is constant ?P=0 w=-P?V
1ev=1.6E-19J
J=?vm=F?t
thumb in direction of proton - fingers in direction of magnetic field and palm will show you force

4. Centripetal acceleration
P=W/T=FD/T=FV
a=v²/r
F=Gm1m2/r²
C=KepA/d

5. F(buoy) = pVg
C=KepA/d
Period in General
Archimedes Principle/Bouyancy
?U=Q + W - heat added= heat + work

6. v = v(3RT)/M = v(3KT)/µ
QH=QL +W and e=W/QH
px and py are conserved
Spring Potential Energy
Average Speed of each Molecule

7. Ideal gas laws
SG=rho object/10³
PV=nRT - PV=N (# of molecules)kb (bozons constant)T
V=added - I=constant - R= added
billiard balls - no sticking total energy is conserved

8. U(spring) = ½kx²
L=n/2?
Spring Potential Energy
273K and 1.013E5 pa
T=2pr/v

9. Net work
shows magnetic field created by a current. Thumb in direction of the current - fingers show direction of field
W=KEf-KEi
F=Bvsin?q
Pin=Pout=Fin/Ain=Fout/Aout

10. Dialectrics insulating sheet between plates
V=added - I=constant - R= added
T=2pr/v
C=KepA/d
f=mv²/r

11. Standard pressure and temperature and pressure
273K and 1.013E5 pa
PE=mgh
Power from Energy
E=-N Change in flux/?t=Blv (v=velocity of the wire)

12. Thermal expansion
Pressure from Depth
?U=Q + W - heat added= heat + work
?L=(coefficient of linear expansion)aLinitial?T
Fy=FnCos?-Fg

13. PE of a spring
V=Ed
PE=1/2kx²
?L=(coefficient of linear expansion)aLinitial?T
Bernoulli Principal

14. Simple force equation
?U=Q + W - heat added= heat + work
F=ma
Fgx=FgCos?
Fnet=Fb-Fg

15. Absolute pressure
Work
Kinematic with Displacement - Velocity - Acceleration - and Time
Efficiency of a Heat Engine
P=Patm + rho g h

16. Adiabatic process
V=constant - I=added - R=1/r added
counterclockwise
Pressure is constant ?P=0 w=-P?V
?U=W - no heat added system (Q=0)

17. Total internal reflection
PE=1/2kx²
V=Ed
n1sin?1=n2sin90
Fny=FnCos?

18. Magnitude of gravitational forces between objects
A1V1=A2V2
F=Gm1m2/r²
f=mv²/r
R=rho L/A A=cross sectional area

19. Centripetal force
?U=W - no heat added system (Q=0)
counterclockwise
n1sin?1=n2sin90
f=mv²/r

20. Current
Constructive: 2t=m? - Destructive: 2t=m?+1/2?
I=?q/?t
t=Fr - force must be perpendicular to the moment arm and the axis of rotation
q=K?AT/L

21. r in torque
Kinematic with Displacement - Velocity - Acceleration - and Time
moment arm - perpendicular distance from the force to the axis of rotation
L=n/2?
W=KEf-KEi

22. Average kinetic energy
Kavg=(3/2)kbT
Fny=FnCos?
Efficiency of a Heat Engine
V=vFt/(m/l)

23. F-F or NF-NF
E=-N Change in flux/?t=Blv (v=velocity of the wire)
?v=0 - w=0 area under the curve is zero
Kinematic with Velocity - Acceleration - and Displacement
Constructive: 2t=m? - Destructive: 2t=m?+1/2?

24. Elastic collision
Force of Friction
billiard balls - no sticking total energy is conserved
f=mv²/r
Fny=FnCos?

25. P = F/A
General Pressure
Momentum
V=vFt/(m/l)
Ideal Gas Law

26. p = mv
Period in General
Momentum
T=2pr/v
Pressure is constant ?P=0 w=-P?V

27. Series Circuits
V=(331 +.6T) T=temp in Celsius
Fgx=FgCos?
V=added - I=constant - R= added
F=Gm1m2/r²

28. v² = v0² + 2a(x-x0)
Kinematic with Displacement - Velocity - Acceleration - and Time
Kinematic with Velocity - Acceleration - and Displacement
Centripetal Acceleration
v3kT/m [mass per molecule] - v3RT/M [molar mass]

29. Potential energy
Centripetal Acceleration
PE=mgh
Fy=FnCos?-Fg
Pin=Pout=Fin/Ain=Fout/Aout

30. e = abs(W/Q)
V=W/Q=KQ/r NO VECTORS
General Pressure
Kinetic Energy
Efficiency of a Heat Engine

31. Simple density formula
rho=m/v
thumb in direction of proton - fingers in direction of magnetic field and palm will show you force
PE=mgh
Vf=Vi+ at - Vf²=Vi² +2ad - d=1/2 a t² +vit

32. Net force/apparent weight in forces
QH=QL +W and e=W/QH
Fnet=Fb-Fg
A1V1=A2V2
Pressure is constant ?P=0 w=-P?V

33. Hookes law
F=kx
P1atm + 1/2rhoV1² + rhogh= P2atm + 1/2rhoV2² + rhogh
Fgy=FgSin?
T=2pvm/k

34. Simple harmonic motion - pendulum
counterclockwise
T=2pvl/g
Flux (in webers)=Bcos?A
Constructive: 2t=m?+1/2? - Destructive: 2t=m?

35. Voltage (circuts)
V=IR
billiard balls - no sticking total energy is conserved
L=n/2?
shows magnetic field created by a current. Thumb in direction of the current - fingers show direction of field

36. Basic thermo equation
F=ma
V=W/Q=KQ/r NO VECTORS
a=v²/r
?U=Q + W - heat added= heat + work

37. P = P0 + pgh
Force of Friction
T=2pvm/k
Pressure from Depth
Momentum

38. P = Fvcos?
Adiabatic and isothermal processes ec= TH-TL/
Power from Force
Power from Energy
Q=CV

39. torque
E=F/q (point charge)=KQ1/r² BREAK INTO VECTORS
f=mv²/r
Pressure is constant ?P=0 w=-P?V
t=Fr - force must be perpendicular to the moment arm and the axis of rotation

40. U(gravitational) = -(Gm1m2/r)
Gravitational Potential Energy Anywhere
clockwise
Fnet=Fb-Fg
E=-N Change in flux/?t=Blv (v=velocity of the wire)

41. Parallel Circuits
1ev=1.6E-19J
clockwise
V=constant - I=added - R=1/r added
billiard balls - no sticking total energy is conserved

42. Ammeter
Vf=Vi+ at - Vf²=Vi² +2ad - d=1/2 a t² +vit
Adiabatic and isothermal processes ec= TH-TL/
Efficiency of a Heat Engine
in series - measures current - low resistance

43. On an inclined plane - gravity in the y
Fgy=FgSin?
Kinematic with Velocity - Acceleration - and Displacement
V=vFt/(m/l)
I=?q/?t

44. PV = nRT = NkT
Q=CV
Ideal Gas Law
Momentum
QH=QL +W and e=W/QH

45. A1V1 = A2V2
Continuity
Kinetic Energy
Vf=Vi+ at - Vf²=Vi² +2ad - d=1/2 a t² +vit
Kinematic with Displacement - Velocity - Acceleration - and Time

46. K = ½mv²
Bernoulli Principal
px and py are conserved
1ev=1.6E-19J
Kinetic Energy

47. Continuity equation [Conservation of mass]
thumb in direction of proton - fingers in direction of magnetic field and palm will show you force
A1V1=A2V2
T=2pvm/k
PV=nRT - PV=N (# of molecules)kb (bozons constant)T

48. v = v0 + at
V=vFt/(m/l)
Kinematic with Velocity - Acceleration - and Time
P=F/A=rho(g)h
t=Fr - force must be perpendicular to the moment arm and the axis of rotation

49. Simple harmonic motion - spring
QH=QL +W and e=W/QH
Constructive: 2t=m? - Destructive: 2t=m?+1/2?
T=2pvm/k
T=2pr/v

50. Force on a current carrying wire in a magnetic field
Efficiency of a Heat Engine
?L=(coefficient of linear expansion)aLinitial?T
F=BIL
in series - measures current - low resistance