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. Internal Energy of an Ideal Gas
Sin(?) = ?/d
(3/2) n R ?t
Ct²-x²-y²-z²
I = I_0 Cos[?]^2

2. Doppler Shift in Frequency
F = f* (c+v_r)/(c+v_s)
X_C = 1/(i?C)
S = (hbar/2) s ;with S = S_x xhat + S_y yhat + S_z zhat -s = s_x xhat + s_y yhat + s_z zhat
<?|O|?>

3. Parallel axis theorem
A[B -C] = A[B -C]+[B -A]C [A -B] = -[B -A]
I = I_cm + (1/2)m d^2
?max = 2.898 x 10 -³ / T
Cv = dE/dT = 3R

4. Ohm'S Law w/ current density
NC?T
S = k ln[O] ; dS = dQ/T
J = E s - s = Conductivity - E = Electric field
CdV/dt + V/R = 0 V(t) = V0 exp(-t/RC) I(t) = I(0) exp(-t/RC)

5. Doppler shift for light
E = <?| H |?>
? = ?_0 Sqrt[(1+v/c)/(1-v/c)]
P = µ_0 q^2 a^2/(6Pi c); No radiation along the axis of acceleration
Ct²-x²-y²-z²

6. E field of a capacitor (d->0)
E = s/e_0
.5 LI²
F = I L X B
S = (hbar/2) s ;with S = S_x xhat + S_y yhat + S_z zhat -s = s_x xhat + s_y yhat + s_z zhat

7. EM: Series Capacitance
C_eq = (? 1/C_i)^-1
Z²/n² (m_red/m_elec)
S_mean = s/Sqrt[N]
? (t-vx/c²)

8. Coriolis Force
µ0 I / 2pR
Braking Radiation
I = Im (sinc²(a)) ; a = pai sin(?) / ?
F = -2*m(? x r)

9. Force/length between two wires
µ0 I1I2 / (2pd)
ds² = (c*dt)² - ?(x_i)²
?mc²
u dm/dt

10. Mean electron drift speed
DB = ( µ_0 I/(4Pi) ) dl(cross)rhat/r^2
X_L = X_C or X_total = 0
J/(ne) n: atom density
U - ts = -tlog(Z)

11. Thermo: Isothermal
ih_barL_z
Z_C + Z_L = 0. Occurs when ?=1/Sqrt[L C]
dU = 0 ? dS = ?dW/T
Exponential - E = -ma²/2hbar² - a is strength of delta wellt

12. Spherical Capacitor Equation
C = 4pe0 ab/(a-b) = inner and outer radii
µ = m_e/2
? = h/p
v(mean)

13. Energy in a Capacitor
D/dt (.5*r^2 d?/dt) = 0 - r(?) = a(1-e²)/(1+ecos(?)) - T²aA³
U - ts = -tlog(Z)
V = V0 + V0 a ?T
.5 CV²

14. Lab: Precision of Measurements
B = µ0 I n
P = µ_0 q^2 a^2/(6Pi c); No radiation along the axis of acceleration
Measurements close to mean
1s² - 2s² 2p6 - 3s² 3p6 3d¹°

15. Lagrangian and Lagrange'S equation
? = 1.22? / d
Cv = dE/dT = 3R
Cos[?] Sin[?] -Sin[?] Cos[?]
L = T - V dL/dq = d/dt dL/dqdot

16. Mech: Impulse
Q = CVexp(-t/RC)
J = ? Fdt
V = -L di/dt
1/ne - where n is charge carrier density

17. Invariant spatial quantity
?scl = +/-1;?m = 0 - +/-1;?S_tot = 0;(?j = ?scl + ?S_tot)
Ct²-x²-y²-z²
div(E) = ?/e_0 - curl(E) = der(B)/der(t) - div(B) = 0 - curl(B) = µ_0J + µ_0e_0*der(E)/der(t)
I = -(c ?t)^2 + d^2

18. Inductance of Solenoid
E_n = -µ c^2 Z a^2 / (2n^2) - with µ = m_1 m_2 / (m_1 + m_2)
L = µ N² A / l : N = number of turns - A = cross sectional area -l = length
1s² - 2s² 2p6 - 3s² 3p6 3d¹°
.5 CV²

19. Gibbs Factor
?L/A - L = length - A = cross sectional area - rho is electrical resistivity
Q = U + W Q = heat in system - U = total energy in system - W = work done by gas
Exp(N(µ-e)/t)
(° of Freedom)kT/2

20. Double Slit: Interference Minimum - Diffraction Minimum
dQ = dW +dU
P² ~ R³
? = ?0 root((1-v/c)/(1+v/c))
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)

21. Bohr Model: Radii
E_n = -µ c^2 Z a^2 / (2n^2) - with µ = m_1 m_2 / (m_1 + m_2)
I_z = I_x + I_y (think hoop symmetry)
? = ?_0 Sqrt[(1+v/c)/(1-v/c)]
N²/Z (m_elec/m_red)

22. Rayleigh criterion
J/(ne) n: atom density
? = 1.22? / d
1/ne - where n is charge carrier density
? = ?0 root((1-v/c)/(1+v/c))

23. Astro: p-p Chain
I = -(c ?t)^2 + d^2
4H + 2e- ? He +2? + 6?
0
<?|O|?>

24. Atom: Hydrogen Wave Function Type
F = qv×B
W_A < W_I
<T> = -<V>/2
Exponentially decreasing radial function

25. Atom: Bohr Theory Ionization
E = Z²*E1
M? = 2dsin(?)
(° of Freedom)kT/2
E = <?| H |?>

26. Mech: Virial Theorem
<T> = -<V>/2
E²-p²c²
F = qv×B
1. Heat is energy 2. Entropy never decreases 3. Entropy approaches a constant value as t -> 0...

27. Lensmaker Equation - Thin Lens
1/f = (n-1)(1/R1 - 1/R2) if both positive - they are convex - concave
F = qv×B
P(s) = (1/Z) Exp[-E(s)/(k T)] Z = S_s(Exp[-E(s)/(k T)])
?s = 0 - ?l = ±1

28. Bohr Model: Energy
Z²/n² (m_red/m_elec)
Z_c = -i/(?C) ; Z_L = i ? L
Measurements close to true value
<T> = 1/2 * <dV/dx>

29. Triplet/singlet states: symmetry and net spin
L^2 |E - scl - m> = hbar^2 scl(scl+1) |E -scl -m> L_z |E - scl - m> = hbar m |E - scl - m>
µ = m_e/2
F = mv²/r
Triplet: symmetric - net spin 1 Singlet: antisymmetric - net spin 0

30. Magnetic Dipole Moment and Torque
u dm/dt
? (t-vx/c²)
Asin(?) = m?
µ = Current * Area T = µ x B

31. Atom: Orbital Config
A[B -C] + [A -C]B
1s² - 2s² 2p6 - 3s² 3p6 3d¹°
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)
1/f = (n-1)(1/R1 - 1/R2) if both positive - they are convex - concave

32. Thermo: Partition Function
Z = ?g_i*exp(-E/kT)
1/vLC
B = µ0 I n
H = T + V;qdot_i = dH/dp_i - pdot_i = dH/dq_i

33. Thermo: Blackbody Radiation
? = h/p
I = I_cm + md²
?~1/T
F = s * T4

34. Angular momentum operators L^2 and L_z
X_L = X_C or X_total = 0
? (t-vx/c²)
L^2 |E - scl - m> = hbar^2 scl(scl+1) |E -scl -m> L_z |E - scl - m> = hbar m |E - scl - m>
Hbar*?³/(p²c³exp(hbar?/t)-1)

35. Bragg'S Law of Reflection
F = -2*m(? x r)
4H + 2e- ? He +2? + 6?
F = f* (c+v_r)/(c+v_s)
M? = 2dsin(?)

36. Energy in terms of partition function
W' = (w-v)/(1-w v/c^2) ; observer in S sees an object moving at velocity w; another frame S' moves at v wrt S.
U = t^2 d/dt (logZ)
1/ne - where n is charge carrier density
Always Real

37. Resistance - length - area - rho
A[B -C] + [A -C]B
Q = U + W Q = heat in system - U = total energy in system - W = work done by gas
?L/A - L = length - A = cross sectional area - rho is electrical resistivity
div(E) = ?/e_0 - curl(E) = der(B)/der(t) - div(B) = 0 - curl(B) = µ_0J + µ_0e_0*der(E)/der(t)

38. Magnetic Field Through Ring
Const: 2t = (n +.5)? Destructive 2t = n?
µ0 I / 2R
Dv = -udm/m - v = v0 + u ln(m0/m)
PdV +dU

39. QM: de Broglie Wavelength
?= h/v(2mE)
E_n = -µ c^2 Z a^2 / (2n^2) - with µ = m_1 m_2 / (m_1 + m_2)
Cos[?] Sin[?] -Sin[?] Cos[?]
? = 5/3

40. Commutator identities ( [B -A C] - [A -B] )
Triplet: symmetric - net spin 1 Singlet: antisymmetric - net spin 0
A[B -C] = A[B -C]+[B -A]C [A -B] = -[B -A]
?mv
1/f = (n-1)(1/R1 - 1/R2) if both positive - they are convex - concave

41. Focal point of mirrror with curvature
Q = U + W Q = heat in system - U = total energy in system - W = work done by gas
<?|O|?>
L = L_0 Sqrt[1-v^2/c^2]
F = R/2

42. EM: AC Resonance
X_L = X_C or X_total = 0
?= h/v(2mE)
V(r) + L²2/2mr²
H = H_0 + ?H

43. Single Slit Diffraction Maximum
J = ? Fdt
Asin(?) = m?
S = k ln[O] ; dS = dQ/T
Dp/dt = L / (t ?V)

44. Heat added
?_max = b/T
M? = 2dsin(?)
NC?T
?s = 0 - ?l = ±1

45. Self Inductance
Braking Radiation
Interference: (m+.5)? = d sin(?) Diffraction: m? = w sin(?)
E = Vmin : circle - E = 0 : parabola - E<0 : el - E>0 : h
V = -L di/dt

46. EM: Bremsstrahlung (translation)
µ0 I / 2pR
I ' = I cos²(?)
F = R/2
Braking Radiation

47. Pauli matrices
?= h/v(2mE)
S = (hbar/2) s ;with S = S_x xhat + S_y yhat + S_z zhat -s = s_x xhat + s_y yhat + s_z zhat
Cv = dE/dT = 3R
E_n = -µ c^2 Z a^2 / (2n^2) - with µ = m_1 m_2 / (m_1 + m_2)

48. EM: Lorentz Force
I ' = I cos²(?)
I = I_cm + md²
F = qv×B
M? = 2dsin(?)

49. Adiabatic processes (dS - dQ - P and V)
1/f = (n-1)(1/R1 - 1/R2) if both positive - they are convex - concave
DS = 0 - dQ = 0 - P V^? = constant
?~1/T
F = qv×B

50. Helmholtz Free Energy
I = I_cm + md²
Q = U + W Q = heat in system - U = total energy in system - W = work done by gas
W' = (w-v)/(1-w v/c^2) ; observer in S sees an object moving at velocity w; another frame S' moves at v wrt S.
U - ts = -tlog(Z)

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