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Test your basic knowledge |
SAT Subject Test: Physics Formulas
Start Test
Study First
Subjects
:
sat
,
science
,
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. Internal energy....equals?
Fb= Bperp-to-areaAcos? (Measures density of magnetic field lines that cross through an area)
F=mv²/ r
Q=m*L (where L is the latent heat of fusion or vaporization)
?IE= - W (work)
2. Gravitational constant
F= n * vel./ 4L n= 1 - 3 - 5.... (L= length of pipe) (?=4L/n)
Etotal= E rest + KE= mc² + (Y-1)mc²
?= 4L + 1.6d
G= 6.67 * 10?¹¹ Nm²/kg²
3. Binding energy formula
S= 1/2at² + v0t+ d0 (intial distance is often ignored because we decide where we want to start)
V= 331 m/s + (.6 m/s°C)Temperature
EMFavg. induced= -?Fb/ ?t (= - change in mag flux/change in time)
Ebinding= ?m * c² (= (?m)c²)
4. Formula for diffraction pattern - Anti-node to Anti-node (A-A)
Negative - focus behind the lens (= virtual image)
Voltage=PE/q (remember Joules/Coulomb= volt)
PE= 1/2 C (?V)² = 1/2 Q²/C = 1/2 Q?V
N?/ d= x/L (where x =distance between c and the anti-node - L =distance from screen to source - n=number anti-node - and d = distance between the slits)
5. Relativistic formula for time
V=IR
Fnet=ma
K= 9 * 10? Nm²/C²
?Tstationary= Y (?Tmoving)
6. Voltage formula (think units of volts are what?) (NOT in terms of I and R)
Minimum frequency that needs to illuminate a metal surface for photoELECTRONS to be emitted
G= 6.67 * 10?¹¹ Nm²/kg²
Voltage=PE/q (remember Joules/Coulomb= volt)
M= -di/do (=-hi/ho)
7. Relativistic formula for velocity
Vstationary obj.= [u+v] / [1 + uv/c²] (where u is velocity of large object - and v is velocity of "thrown" object relative to large object)
Intensity a Amplitude/ d²
The volume of the object.
G= 6.67 * 10?¹¹ Nm²/kg²
8. Mass defect explanation
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9. Threshold frequency explanation?
Minimum frequency that needs to illuminate a metal surface for photoELECTRONS to be emitted
Voltage=PE/q (remember Joules/Coulomb= volt)
Vfinal²=V0²+ 2ad
KE= (Y-1)mc² (= (Y-1)E)
10. (Full) Displacement formula
E0= 8.85 * 10?¹² C²/(Nm²)
W= - kq1q2 (1/r2 - 1/r1)
S= 1/2at² + v0t+ d0 (intial distance is often ignored because we decide where we want to start)
Particles in motion can display wave characteristics - and behave as if they had wavelength (?= h/p)
11. Total KE formula
C= 3*108 m/s
Etotal= E rest + KE= mc² + (Y-1)mc²
The incident angle at which total internal reflection occurs (use ?r=90°)
KE= (Y-1)mc² (= (Y-1)E)
12. ONE END CAPPED PIPE FREQUENCY (Frequency/Harmonic series of a pipe closed at one ned)
E=hf (= Planck's constant*frequency)
Q=mc?T (where T is temperature)
Y= 1/ v(1-(v/c)²)
F= n * vel./ 4L n= 1 - 3 - 5.... (L= length of pipe) (?=4L/n)
13. Heat formula
Q=mc?T (where T is temperature)
F= (9/5)C+ 32
Shorter ? - less diffraction - bigger shadow.
Fingers= Magnetic Field - Thumb=Velocity - Palm of hand= Force. RH=Proton - LH= electron.
14. Ideal gas law
KE= (Y-1)mc² (= (Y-1)E)
Felec=qE=[kq1q2]/r²
The release of electrons due to bombardment of an atom by photons (groups of quanta/bundles of matter)
PV=nRT (p= pressure - V= volume - n= number of moles - T= temperature in KELVIN - R= .0821)
15. Formula for magnetic flux?
Ebinding= ?m * c² (= (?m)c²)
1/f= 1/di + 1/do
Fb= Bperp-to-areaAcos? (Measures density of magnetic field lines that cross through an area)
Q=mc?T (where T is temperature)
16. Correction factor for wavelength in a diffraction experiment (probably don't have to know)
Vfinal²=V0²+ 2ad
?= 4L + 1.6d
W=(Force parallel)(distance)= Pressure ? V (change in volume)= qvoltage
Proton--> Neutron + positron (+ electron-neutrino - v) (° +1 e is produced)
17. Torque formula
PE=mgh
PV=nRT (p= pressure - V= volume - n= number of moles - T= temperature in KELVIN - R= .0821)
Torque=force perpendicular to radius r = fr Toruqe=Ia = inertia * angular acceleration
Minimal energy that needs to be imparted to an electron on metal surface in order to liberate it.
18. Planck's constant in electronvolts* seconds?
Neutron --> Proton + electron ( + electron-antineutrino - V with line over it) ( °?1e produced)
4.14 10?¹5 eVs
Voltage=PE/q (remember Joules/Coulomb= volt)
E0= 8.85 * 10?¹² C²/(Nm²)
19. mass of a proton/neutron (there's a slight difference but ignore it - neutron has slightly more mass)
C= 3*108 m/s
1.67*10?²7kg
?p=f?t (where f is AVERAGE force and t is how long force is applied)
Vstationary obj.= [u+v] / [1 + uv/c²] (where u is velocity of large object - and v is velocity of "thrown" object relative to large object)
20. Moment of Inertia (a.k.a. rotational mass)
V=f?
Neutron --> Proton + electron ( + electron-antineutrino - V with line over it) ( °?1e produced)
I=mr²
?Tstationary= Y (?Tmoving)
21. Magnification equation
6.6310 ?³4 Js
M= -di/do (=-hi/ho)
F= (9/5)C+ 32
4.14 10?¹5 eVs
22. Heat of fusion/vaporization fromula
En= [Z²/n² * -13.6ev ] (Z is number of protons in atom's nucleus - n is energy level number)
E0= 8.85 * 10?¹² C²/(Nm²)
M= -di/do (=-hi/ho)
Q=m*L (where L is the latent heat of fusion or vaporization)
23. Activity of a radioactive sample formula? (probably don't have to know)
Vstationary obj.= [u+v] / [1 + uv/c²] (where u is velocity of large object - and v is velocity of "thrown" object relative to large object)
A= A0 e ^ [-?t] (= activity at time t=0 e ^ ( - decay constant * time)
P=IV=I²R=V² /R = Fd/t= Force*velocity
F= (9/5)C+ 32
24. ß? decay?
W= - kq1q2 (1/r2 - 1/r1)
V=f?
Momentum is always conserved in the absence of an outside force
Proton--> Neutron + positron (+ electron-neutrino - v) (° +1 e is produced)
25. Work function F is..?
E0= 8.85 * 10?¹² C²/(Nm²)
?IE= - W (work)
Large/high
Minimal energy that needs to be imparted to an electron on metal surface in order to liberate it.
26. Index of refraction formula
A=v²/ r
Minimal energy that needs to be imparted to an electron on metal surface in order to liberate it.
W= - kq1q2 (1/r2 - 1/r1)
N= C/velocity.
27. K constant for electric field formula?
K= 9 * 10? Nm²/C²
For every action there is an equal and opposite reaction
1/f= 1/di + 1/do
?=h/p (where p= MOMENTUM=m?v - and h is planck's constant)
28. Threshold frequency formula?
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29. Formula for velocity of waves?
For every action there is an equal and opposite reaction
Zero.
V=f?
Ni sin?i=nrsin?r
30. Elastic potential energy for a spring formula
E= kq/r² (= f/q)
931MeV=1amu
PEspring= 1/2 kx² (K is spring constant - X is distance spring compressed)
Q=m*L (where L is the latent heat of fusion or vaporization)
31. Magnetic force formula (for particle)?
(n-1/2)?/ d= x/L (where x =distance between c and the anti-node - L =distance from screen to source - n=number anti-node - and d = distance between the slits)
Force magnetic= |q|vBsin? (=qVperpendicularB) (?= angle between v and B)
Intensity a Amplitude/ d²
Large/high
32. Law of reflection
Threshold frequency=F/h (= work functions/planck's constant)
Angle of incidence=Angle of reflection
P=mv (?p=m?v)
Minimum frequency that needs to illuminate a metal surface for photoELECTRONS to be emitted
33. High frequency wave shave...
Torque=force perpendicular to radius r = fr Toruqe=Ia = inertia * angular acceleration
Shorter ? - less diffraction - bigger shadow.
P=mv (?p=m?v)
Induced current will flow opposite direction of magnetic flux.
34. Formula for energy of a photon?
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35. Maximum KE with which an emitted electron leaves is...?
M= -di/do (=-hi/ho)
Longer ? - larger diffraction - smaller shadow.
E= kq/r² (= f/q)
KEmax= hf-F (= E-F= Energy of a photon - work function)
36. OPEN PIPE FREQUENCY (Frequency/Harmonic series of a pipe opened at both ends)
Eff= 1- Qc/Qh = 1- Tc/Th
F= n * vel/2L n= 1 - 2 - 3... (L= length of pipe) (?=2L/n)
Beat frequency= |F1-F2|
The incident angle at which total internal reflection occurs (use ?r=90°)
37. Beat frequency
Eff= 1- Qc/Qh = 1- Tc/Th
Voltage=PE/q (remember Joules/Coulomb= volt)
F=ILBsin? (?= angle btw. L and B)
Beat frequency= |F1-F2|
38. Sign of focus for concave lens?
Positive - focus in front of the lens (=real image)
F=GM1M2/r²
?p=f?t (where f is AVERAGE force and t is how long force is applied)
Induced current will flow opposite direction of magnetic flux.
39. Conservation of momentum
Shorter ? - less diffraction - bigger shadow.
?p=f?t (where f is AVERAGE force and t is how long force is applied)
Longer ? - larger diffraction - smaller shadow.
Momentum is always conserved in the absence of an outside force
40. Centripetal force formula
Q=m*L (where L is the latent heat of fusion or vaporization)
Fb= mass of displaced fluid * gravity
F=mv²/ r
Beat frequency= |F1-F2|
41. Capacitance constant
Fb= Bperp-to-areaAcos? (Measures density of magnetic field lines that cross through an area)
A= A0 e ^ [-?t] (= activity at time t=0 e ^ ( - decay constant * time)
For every action there is an equal and opposite reaction
E0= 8.85 * 10?¹² C²/(Nm²)
42. Light intensity is proportional to..
Intensity a Amplitude/ d²
P=mv (?p=m?v)
Q=m*L (where L is the latent heat of fusion or vaporization)
F=mv²/ r
43. If speed is high - index of refraction is....
F=mv²/ r
Q= [(mass of A + mass of B) - (mass of C + mass of D)] c² (where A+B-->C+D)
PV=nRT (p= pressure - V= volume - n= number of moles - T= temperature in KELVIN - R= .0821)
Low
44. Magnetic force formula (for wire)?
1.6*10?¹? C
KE= (Y-1)mc² (= (Y-1)E)
Longer ? - larger diffraction - smaller shadow.
F=ILBsin? (?= angle btw. L and B)
45. Faraday's law
En= [Z²/n² * -13.6ev ] (Z is number of protons in atom's nucleus - n is energy level number)
1.6*10?¹? C
Zero.
EMFavg. induced= -?Fb/ ?t (= - change in mag flux/change in time)
46. Kinetic Energy formula
Eff= 1- Qc/Qh = 1- Tc/Th
Intensity a Amplitude/ d²
S= 1/2at² + v0t+ d0 (intial distance is often ignored because we decide where we want to start)
KE=1/2mv²
47. (Full/Final) Velocity formula
Momentum is always conserved in the absence of an outside force
Vfinal= V0 +at
6.6310 ?³4 Js
PE= 1/2 C (?V)² = 1/2 Q²/C = 1/2 Q?V
48. magnitude of charge on electron/proton
Energy it takes to break a nucleus into separate protons and neutrons (same as energy lost to create atom.)
Beat frequency= |F1-F2|
Vstationary obj.= [u+v] / [1 + uv/c²] (where u is velocity of large object - and v is velocity of "thrown" object relative to large object)
1.6*10?¹? C
49. Law of refraction
Vstationary obj.= [u+v] / [1 + uv/c²] (where u is velocity of large object - and v is velocity of "thrown" object relative to large object)
Particles in motion can display wave characteristics - and behave as if they had wavelength (?= h/p)
Ni sin?i=nrsin?r
C= Q/V = e0 *A/d
50. Energy of an emitted photon formula?
For every action there is an equal and opposite reaction
V=IR
PEspring= 1/2 kx² (K is spring constant - X is distance spring compressed)
Energy of emitted photon = E2-E1 (=Energy level higher- Energy level lower)