Test your basic knowledge |

GRE 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. Effective Potential
H = H_0 + ?H
Z_c = -i/(?C) ; Z_L = i ? L
Z = ?g_i*exp(-E/kT)
V(r) + L²2/2mr²

2. Relativistic Energy
.5 CV²
µ0 I / 2pR
?mc²
F = f* (c+v_r)/(c+v_s)

3. EM: Bremsstrahlung (translation)
1/ne - where n is charge carrier density
? = h/mv
.5 CV²
Braking Radiation

4. Thin Film Theory: Constructive / Destructive Interference
Const: 2t = (n +.5)? Destructive 2t = n?
J = ? Fdt
Let w_i = 1/s_i^2;x_wav = S(w_i x_i) / Sw_i - s_xwav = 1/Sw_i
?scl = +/-1;?m = 0 - +/-1;?S_tot = 0;(?j = ?scl + ?S_tot)

5. Addition of relativistic velocities

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

6. A reversible process stays..
Sin(?) = ?/d
C_eq = ?C_i
Infinitely close to equilibrium at all times
H = H_0 + ?H

7. Expectation value of the energy of state |?>
.5 CV²
E = <?| H |?>
Const: 2t = (n +.5)? Destructive 2t = n?
C_eq = (? 1/C_i)^-1

8. Commutator identities ( [B -A C] - [A -B] )
A[B -C] = A[B -C]+[B -A]C [A -B] = -[B -A]
Cos[?] Sin[?] -Sin[?] Cos[?]
1/f = (n-1)(1/R1 - 1/R2) if both positive - they are convex - concave
I = I_cm + (1/2)m d^2

9. Boltzmann / Canonical distribution
A[B -C] = A[B -C]+[B -A]C [A -B] = -[B -A]
P(s) = (1/Z) Exp[-E(s)/(k T)] Z = S_s(Exp[-E(s)/(k T)])
F_f = µ*F_N
I = I_0 Cos[?]^2

10. Angular momentum - Central Force Motion
?= h/v(2mE)
L = mr²d?/dt
PdV +dU
v(mean)

11. RLC resonance condition
? = 5/3
C_eq = (? 1/C_i)^-1
B = µ0 I (sin(?1)-sin(?2))/(4pr) r = distance from point
Z_C + Z_L = 0. Occurs when ?=1/Sqrt[L C]

12. De Broglie wavelength
E_n = -µ c^2 Z a^2 / (2n^2) - with µ = m_1 m_2 / (m_1 + m_2)
W_A < W_I
? = h/p
When you apply a uniform electric field - it induces a dipole moment and interacts with it - and that effect depends on |mj |. So if j is an integer - splits (asymmetrically) into j+1 levels - and if j is a half integer - splits (asymmetrically) into

13. Wein'S Displacement Law
?max = 2.898 x 10 -³ / T
µ=s^2
dU = 0 ? dS = ?dW/T
I = V/R exp(-t/RC)

14. Magnetic Field of a long solenoid
F = qv×B
D/dt (.5*r^2 d?/dt) = 0 - r(?) = a(1-e²)/(1+ecos(?)) - T²aA³
I ' = I cos²(?)
B = µ0 I n

15. Work done on a gas
dQ = dW +dU
Triplet: symmetric - net spin 1 Singlet: antisymmetric - net spin 0
B = µ0 I (sin(?1)-sin(?2))/(4pr) r = distance from point
DW = P dV

16. Adiabatic means
Isentropic
Const: 2t = (n +.5)? Destructive 2t = n?
C_eq = (? 1/C_i)^-1
F = qv×B

17. Doppler shift for light
? = ?_0 Sqrt[(1+v/c)/(1-v/c)]
ds² = (c*dt)² - ?(x_i)²
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)
F = -2*m(? x r)

18. Charge in Capacitor
B = µ0 I n
I = -(c ?t)^2 + d^2
Q = CVexp(-t/RC)
F = f* (c+v_r)/(c+v_s)

19. Internal Energy of an Ideal Gas
?? = h/mc * (1-cos(?))
(3/2) n R ?t
C_eq = ?C_i
F = R/2

20. Kepler'S third law (T and R)
T^2 = k R^3 - k=constant
U - ts = -tlog(Z)
Z²/n² (m_red/m_elec)
Int ( A . dr) = Int ( del x A) dSurface

21. Lab: Accuracy of Measurements
<?1|?2> = 0 ? Orthogonal
Measurements close to true value
W_A < W_I
µ = Current * Area T = µ x B

22. Force on a wire in magnetic field
X_C = 1/(i?C)
F = I L X B
? = ?_0 Sqrt[(1+v/c)/(1-v/c)]
? = h/p

23. Rayleigh criterion
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)
F = qv×B
? = 1.22? / d
Z_C + Z_L = 0. Occurs when ?=1/Sqrt[L C]

24. Thermo: Partition Function
1. Heat is energy 2. Entropy never decreases 3. Entropy approaches a constant value as t -> 0...
div(E) = ?/e_0 - curl(E) = der(B)/der(t) - div(B) = 0 - curl(B) = µ_0J + µ_0e_0*der(E)/der(t)
Z = ?g_i*exp(-E/kT)
Product ( nj ^ vj ) = Product(nqj ^ vj exp (-vj F(int)/Tau))

25. EM: Reactance of Capacitor
Dp/dt = L / (t ?V)
C = 4pe0 ab/(a-b) = inner and outer radii
X_C = 1/(i?C)
B = µ0 I (sin(?1)-sin(?2))/(4pr) r = distance from point

26. Doppler Shift in Frequency
F = f* (c+v_r)/(c+v_s)
Isentropic
dU = 0 ? dS = ?dW/T
I_z = I_x + I_y (think hoop symmetry)

27. Delta Function Potential - type of WF
Exponential - E = -ma²/2hbar² - a is strength of delta wellt
µ0 I / 2pR
DS = 0 - dQ = 0 - P V^? = constant
I = I_cm + md²

28. Magnetic Dipole Moment and Torque
µ = Current * Area T = µ x B
P +1/2 ? v² + ?gh = Constant
KE = 1/2 * µ (dr/dt)² L = µ r x v
0

29. Mech: Rotational Energy
U - ts = -tlog(Z)
T = I?²/2
Q = CVexp(-t/RC)
In Zeeman effect - the contribution of electron spin to total angular momentum means that it isn'T always three lines and they are not always equally spaced.

30. Stark Effect
Braking Radiation
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)
(° of Freedom)kT/2
When you apply a uniform electric field - it induces a dipole moment and interacts with it - and that effect depends on |mj |. So if j is an integer - splits (asymmetrically) into j+1 levels - and if j is a half integer - splits (asymmetrically) into

31. EM: Electromagnetic inertia
Faraday/Lenz: current inducted opposes the changing field
E_n = -µ c^2 Z a^2 / (2n^2) - with µ = m_1 m_2 / (m_1 + m_2)
E = Vmin : circle - E = 0 : parabola - E<0 : el - E>0 : h
Exponentially decreasing radial function

32. Invariant spatial quantity
F = qv×B
Measurements close to true value
Ct²-x²-y²-z²
P(s) = (1/Z) Exp[-E(s)/(k T)] Z = S_s(Exp[-E(s)/(k T)])

33. Magnetic Field For Current in Long Wire
µ0 I / 2pR
div(E) = ?/e_0 - curl(E) = der(B)/der(t) - div(B) = 0 - curl(B) = µ_0J + µ_0e_0*der(E)/der(t)
F_f = µ*F_N
Measurements close to mean

34. Astro: Kepler'S Third Law
North to south; Earth has S magnetic pole at the N geographic pole and vice versa.
µ0 I / 2R
?s = 0 - ?l = ±1
P² ~ R³

35. Entropy (# of states - and in terms of other thermo quantities)
S = k ln[O] ; dS = dQ/T
DB = ( µ_0 I/(4Pi) ) dl(cross)rhat/r^2
0
Cos[?] Sin[?] -Sin[?] Cos[?]

36. Energy in terms of partition function
?= h/v(2mE)
U = t^2 d/dt (logZ)
P² ~ R³
Measurements close to true value

37. Mech: Impulse
Isentropic
1/f = (n-1)(1/R1 - 1/R2) if both positive - they are convex - concave
F = qv×B
J = ? Fdt

38. Relativistic Momentum
(° of Freedom)kT/2
Ct²-x²-y²-z²
F = s * T4
?mv

39. Ohm'S Law w/ current density
J = E s - s = Conductivity - E = Electric field
v(mean)
Cos[?] Sin[?] -Sin[?] Cos[?]
T^2 = k R^3 - k=constant

40. Work (P - V)
P1V1 - P2V2 / (? - 1)
ds² = (c*dt)² - ?(x_i)²
? = ?_0 Sqrt[(1+v/c)/(1-v/c)]
<T> = -<V>/2

41. Law of Mass Action
Faraday/Lenz: current inducted opposes the changing field
Product ( nj ^ vj ) = Product(nqj ^ vj exp (-vj F(int)/Tau))
I = I_cm + md²
PdV +dU

42. Bohr Model: Radii
?_max = b/T
N²/Z (m_elec/m_red)
<T> = 1/2 * <dV/dx>
Z = ?g_i*exp(-E/kT)

43. Resonance frequency of LC circuit
DS = 0 - dQ = 0 - P V^? = constant
P(s) = (1/Z) Exp[-E(s)/(k T)] Z = S_s(Exp[-E(s)/(k T)])
1/vLC
T = I?²/2

44. Center of Mass: Kinetic Energy & Angular Momentum
KE = 1/2 * µ (dr/dt)² L = µ r x v
1/ne - where n is charge carrier density
P1V1 - P2V2 / (? - 1)
F = qv×B

45. Heat added
<T> = -<V>/2
NC?T
Braking Radiation
Const: 2t = (n +.5)? Destructive 2t = n?

46. Biot-Savart law
J = E s - s = Conductivity - E = Electric field
µ = Current * Area T = µ x B
? exp(-e/t)
DB = ( µ_0 I/(4Pi) ) dl(cross)rhat/r^2

47. Gibbs Factor
ih_barL_z
L = mr²d?/dt
Exp(N(µ-e)/t)
Always Real

48. EM: Reactance of Inductor
u dm/dt
L = mr²d?/dt
X_L = i?L
A[B -C] = A[B -C]+[B -A]C [A -B] = -[B -A]

49. Invariant Energy Quantity
µ0 I / 2R
ds² = (c*dt)² - ?(x_i)²
E²-p²c²
Z_c = -i/(?C) ; Z_L = i ? L

50. Double Slit: Interference Minimum - Diffraction Minimum
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)
Asin(?) = m?
CdV/dt + V/R = 0 V(t) = V0 exp(-t/RC) I(t) = I(0) exp(-t/RC)
?scl = +/-1;?m = 0 - +/-1;?S_tot = 0;(?j = ?scl + ?S_tot)

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

GRE Physics

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests