Test your basic knowledge |

SAT Subject Test: Physics 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. Formula for diffraction pattern - Anti-node to node (A-N)
Law of inertia. Object in motion stays in motion unless acted upon by an outside force.
(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)
Angle of incidence=Angle of reflection
C= 3*108 m/s

2. Activity of a radioactive sample formula? (probably don't have to know)
PEspring= 1/2 kx² (K is spring constant - X is distance spring compressed)
A= A0 e ^ [-?t] (= activity at time t=0 e ^ ( - decay constant * time)
Threshold frequency=F/h (= work functions/planck's constant)
R= ?L/A = (resistivity)(length of wire) / (cross sectional Area)

3. Mass defect explanation

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

4. Centripetal force formula
Fnet=ma
F=mv²/ r
E= kq/r² (= f/q)
PEspring= 1/2 kx² (K is spring constant - X is distance spring compressed)

5. Formula for diffraction pattern - Anti-node to Anti-node (A-A)
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)
C= Q/V = e0 *A/d
Apparent weight = Fb- weight= (mfg) - (m0g) = (mass of displaced fluid gravity) - (initial mass of object while hanging in air gravity) = (DfVfg)- (DoVog)
KE= (Y-1)mc² (= (Y-1)E)

6. Work function F is..?
V=f?
Minimal energy that needs to be imparted to an electron on metal surface in order to liberate it.
Threshold frequency=F/h (= work functions/planck's constant)
Minimum frequency that needs to illuminate a metal surface for photoELECTRONS to be emitted

7. ß? decay?
(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)
Proton--> Neutron + positron (+ electron-neutrino - v) (° +1 e is produced)
Neutron --> Proton + electron ( + electron-antineutrino - V with line over it) ( °?1e produced)
F= (9/5)C+ 32

8. Apparent weight (weight of submerged object)
Fingers= Magnetic Field - Thumb=Velocity - Palm of hand= Force. RH=Proton - LH= electron.
Minimal energy that needs to be imparted to an electron on metal surface in order to liberate it.
Apparent weight = Fb- weight= (mfg) - (m0g) = (mass of displaced fluid gravity) - (initial mass of object while hanging in air gravity) = (DfVfg)- (DoVog)
931MeV=1amu

9. magnitude of charge on electron/proton
P=IV=I²R=V² /R = Fd/t= Force*velocity
The incident angle at which total internal reflection occurs (use ?r=90°)
1.6*10?¹? C
I=mr²

10. Newton's third law
Fnet=ma
Momentum is always conserved in the absence of an outside force
For every action there is an equal and opposite reaction
A=v²/ r

11. Relativistic formula for velocity
The volume of the object.
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)
Shorter ? - less diffraction - bigger shadow.
Length stationary=Length moving/Y

12. Sign of focus for concave lens?
Positive - focus in front of the lens (=real image)
Induced current will flow opposite direction of magnetic flux.
Angle of incidence=Angle of reflection
Fingers= Magnetic Field - Thumb=Velocity - Palm of hand= Force. RH=Proton - LH= electron.

13. If speed is slow/low - index of refraction is...
Large/high
Atom + electron--> Neutron (the addition of an electron - °?1e - causes a proton to change into a neutron - i.e. PROTON TRANSFORMS)
Positive - focus in front of the lens (=real image)
KEmax= hf-F (= E-F= Energy of a photon - work function)

14. Planck's constant in electronvolts* seconds?
Particles in motion can display wave characteristics - and behave as if they had wavelength (?= h/p)
F= n * vel./ 4L n= 1 - 3 - 5.... (L= length of pipe) (?=4L/n)
S= 1/2at² + v0t+ d0 (intial distance is often ignored because we decide where we want to start)
4.14 10?¹5 eVs

15. Low frequency waves have...
For every action there is an equal and opposite reaction
Longer ? - larger diffraction - smaller shadow.
Intensity a Amplitude/ d²
Proton--> Neutron + positron (+ electron-neutrino - v) (° +1 e is produced)

16. ONE END CAPPED PIPE FREQUENCY (Frequency/Harmonic series of a pipe closed at one ned)
F= n * vel./ 4L n= 1 - 3 - 5.... (L= length of pipe) (?=4L/n)
1.67*10?²7kg
Beat frequency= |F1-F2|
Shorter ? - less diffraction - bigger shadow.

17. Formula for resistance of an OBJECT
Shorter ? - less diffraction - bigger shadow.
?Tstationary= Y (?Tmoving)
E=hf (= Planck's constant*frequency)
R= ?L/A = (resistivity)(length of wire) / (cross sectional Area)

18. Efficiency of an engine formula
?V2/?V1= N2/N1 (if secondary greater than primary it's a step-up transformer).
F= (9/5)C+ 32
Eff= 1- Qc/Qh = 1- Tc/Th
W= - kq1q2 (1/r2 - 1/r1)

19. deBrolglie wavelength formula

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

20. Total KE formula
Etotal= E rest + KE= mc² + (Y-1)mc²
R= ?L/A = (resistivity)(length of wire) / (cross sectional Area)
G= 6.67 * 10?¹¹ Nm²/kg²
Q= [(mass of A + mass of B) - (mass of C + mass of D)] c² (where A+B-->C+D)

21. Electric field between two plates formula?
V=IR
E= V/d
Difference between mass of nucleus and sum of it's constituent nucleons (protons/neutrons ...WHY?) energy lost when atom created. (That energy lost is the same energy it takes to break a nucleus into separate protons and neutrons)
Length stationary=Length moving/Y

22. Graviational force formula
Momentum is always conserved in the absence of an outside force
Zero.
F=GM1M2/r²
S= 1/2at² + v0t+ d0 (intial distance is often ignored because we decide where we want to start)

23. What is the apparent weight of a floating object?
P=IV=I²R=V² /R = Fd/t= Force*velocity
Etotal= E rest + KE= mc² + (Y-1)mc²
V= 331 m/s + (.6 m/s°C)Temperature
Zero.

24. Binding energy explanation
E= V/d
For every action there is an equal and opposite reaction
Energy it takes to break a nucleus into separate protons and neutrons (same as energy lost to create atom.)
Angle of incidence=Angle of reflection

25. Converting Fahrenheit to Celsius
Vfinal²=V0²+ 2ad
Product of each lens's magnification
Fnet=ma
F= (9/5)C+ 32

26. Formula for energy of a photon?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

27. Impulse formula
E= V/d
Large/high
?p=f?t (where f is AVERAGE force and t is how long force is applied)
Eff= 1- Qc/Qh = 1- Tc/Th

28. energy in a reaction q formula?
Q= [(mass of A + mass of B) - (mass of C + mass of D)] c² (where A+B-->C+D)
Y= 1/ v(1-(v/c)²)
Proton--> Neutron + positron (+ electron-neutrino - v) (° +1 e is produced)
?p=f?t (where f is AVERAGE force and t is how long force is applied)

29. Index of refraction formula
The incident angle at which total internal reflection occurs (use ?r=90°)
PV/nT'= p'V'n'T' (p=pressure - V= VOLUME - T= temperature)
Beat frequency= |F1-F2|
N= C/velocity.

30. If speed is high - index of refraction is....
W= - kq1q2 (1/r2 - 1/r1)
F=GM1M2/r²
F= n * vel./ 4L n= 1 - 3 - 5.... (L= length of pipe) (?=4L/n)
Low

31. mass of a proton/neutron (there's a slight difference but ignore it - neutron has slightly more mass)
Q=mc?T (where T is temperature)
V= 331 m/s + (.6 m/s°C)Temperature
Fingers= Magnetic Field - Thumb=Velocity - Palm of hand= Force. RH=Proton - LH= electron.
1.67*10?²7kg

32. Correction factor for wavelength in a diffraction experiment (probably don't have to know)
Etotal= E rest + KE= mc² + (Y-1)mc²
?= 4L + 1.6d
E=hf (= Planck's constant*frequency)
P=IV=I²R=V² /R = Fd/t= Force*velocity

33. Magnetic force formula (for particle)?
KEmax= hf-F (= E-F= Energy of a photon - work function)
PE= 1/2 C (?V)² = 1/2 Q²/C = 1/2 Q?V
Force magnetic= |q|vBsin? (=qVperpendicularB) (?= angle between v and B)
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)

34. ß? decay?
PE= 1/2 C (?V)² = 1/2 Q²/C = 1/2 Q?V
?p=f?t (where f is AVERAGE force and t is how long force is applied)
The volume of the object.
Proton--> Neutron + positron (+ electron-neutrino - v) (° +1 e is produced)

35. If you drop an object into water the volume displaced equals...
F= (9/5)C+ 32
1/f= 1/di + 1/do
Eff= 1- Qc/Qh = 1- Tc/Th
The volume of the object.

36. Formula for velocity of waves?
?= 4L + 1.6d
W= - kq1q2 (1/r2 - 1/r1)
Energy it takes to break a nucleus into separate protons and neutrons (same as energy lost to create atom.)
V=f?

37. What is the photoelectric effect?
PV=nRT (p= pressure - V= volume - n= number of moles - T= temperature in KELVIN - R= .0821)
The release of electrons due to bombardment of an atom by photons (groups of quanta/bundles of matter)
Zero.
Vfinal²=V0²+ 2ad

38. Capacitance constant
Intensity a Amplitude/ d²
931MeV=1amu
W=(Force parallel)(distance)= Pressure ? V (change in volume)= qvoltage
E0= 8.85 * 10?¹² C²/(Nm²)

39. Momentum formula?
Particles in motion can display wave characteristics - and behave as if they had wavelength (?= h/p)
C= Q/V = e0 *A/d
KEmax= hf-F (= E-F= Energy of a photon - work function)
P=mv (?p=m?v)

40. Power formula?
Fb= Bperp-to-areaAcos? (Measures density of magnetic field lines that cross through an area)
Y= 1/ v(1-(v/c)²)
P=IV=I²R=V² /R = Fd/t= Force*velocity
Law of inertia. Object in motion stays in motion unless acted upon by an outside force.

41. K constant for electric field formula?
K= 9 * 10? Nm²/C²
1/f= 1/di + 1/do
A= A0 e ^ [-?t] (= activity at time t=0 e ^ ( - decay constant * time)
F=mv²/ r

42. Capacitance formula? (there are two)
C= Q/V = e0 *A/d
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)
Felec=qE=[kq1q2]/r²

43. Law of refraction
Ni sin?i=nrsin?r
4.14 10?¹5 eVs
Q= [(mass of A + mass of B) - (mass of C + mass of D)] c² (where A+B-->C+D)
Shorter ? - less diffraction - bigger shadow.

44. Heat formula
Q=mc?T (where T is temperature)
Induced current will flow opposite direction of magnetic flux.
M= -di/do (=-hi/ho)
Threshold frequency=F/h (= work functions/planck's constant)

45. Lenz's law
G= 6.67 * 10?¹¹ Nm²/kg²
En= [Z²/n² * -13.6ev ] (Z is number of protons in atom's nucleus - n is energy level number)
Fingers= Magnetic Field - Thumb=Velocity - Palm of hand= Force. RH=Proton - LH= electron.
Induced current will flow opposite direction of magnetic flux.

46. Light intensity is proportional to..
Momentum is always conserved in the absence of an outside force
Intensity a Amplitude/ d²
For every action there is an equal and opposite reaction
C= Q/V = e0 *A/d

47. Kinetic Energy formula
Momentum is always conserved in the absence of an outside force
KE=1/2mv²
E= kq/r² (= f/q)
Low

48. (Full/Final) Velocity formula
Beat frequency= |F1-F2|
For every action there is an equal and opposite reaction
Positive - focus in front of the lens (=real image)
Vfinal= V0 +at

49. Formula for magnetic flux?
Energy it takes to break a nucleus into separate protons and neutrons (same as energy lost to create atom.)
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)
V=IR

50. Work performed by charge displacement? (hopefully...won't have to know)
Ebinding= ?m * c² (= (?m)c²)
Momentum is always conserved in the absence of an outside force
W= - kq1q2 (1/r2 - 1/r1)
Longer ? - larger diffraction - smaller shadow.