| Color | Wavelength |
|---|---|
| Violet | 4.0-4.2 x 10-7 m |
| Blue | 4.2-4.9 x 10-7 m |
| Green | 4.9-5.7 x 10-7 m |
| Yellow | 5.7-5.9 x 10-7 m |
| Orange | 5.9-6.5 x 10-7 m |
| Red | 6.5-7.0 x 10-7 m |
| Substance | Index |
|---|---|
| Air | 1.00 |
| Alcohol | 1.36 |
| Canada Balsam | 1.53 |
| Corn Oil | 1.47 |
| Diamond | 2.42 |
| Glass, Crown | 1.52 |
| Glass, Flint | 1.61 |
| Glycerol | 1.47 |
| Lucite | 1.50 |
| Quartz, Fused | 1.46 |
| Water | 1.33 |
| Formula | Key |
|---|---|
| T = 1 / f | c = speed of light in a vacuum |
| v = f * (wavelength) | d = distance between slits |
| n = c / v | f = frequency |
| sin c = 1 / n | L = distance from slit to screen |
| n1v1 = n2v1 | n = index of absolute refraction |
| n1 sin 1 = n2 sin 2 | T = period |
| [(wavelength) / d] = [x / L] | v = speed |
| x = dist. from central max. to 1st order max. | |
| (wavelength) = wavelength | |
| = angle | |
| c = critical angle |
| Formula | Key |
|---|---|
| F = (k * q1 * q2) / r2 | d = separation of parallel plates |
| E = F / q | r = distance between centers |
| V = W / q | E = electric field intensity |
| E = V / d | F = force |
| I = q / t | I = current |
| R = V / I | k = electrostatic constant |
| P = VI = I2R = V2 / R | l = length of conductor |
| W = Pt = VIt = I2Rt | P = power |
| Series Circuits: | |
| It = I1 = I 2 = . . . | q = charge |
| Vt = V1 + V2 + . . . | R = resistance |
| Rt = R1 + R2 + . . . | t = time |
| Parallel Circuits: | |
| It = I1 + I 2 + . . . | V = electric potential difference |
| Vt = V1 = V2 = . . . | W = energy |
| Rt = 1 / R1 + 1 / R2 + . . . |
| Formula | Key |
|---|---|
| W = Fs | F = Force |
| P = W/t = Fs/t = Fv | g = accel. due to gravity |
| PE = mgh | h = height |
| KE = 1/2mv2 | k = spring constant |
| F = kx | KE = kinetic energy |
| PEs = 1/2kx2 | m = mass |
| P = power | |
| PE = potential energy | |
| PEs = pot. energy stored in a spring | |
| s = displacement | |
| t = time | |
| v = velocity | |
| W = work | |
| x = change in spring length |
| Formula | Key |
|---|---|
| average v = s/t | a = acceleration |
| average v = vf + vi/2 | r = distance between centers |
| average a = v/t | F = force |
| s = vit + .5a(t)2 | g = accel. due to gravity |
| vf2 = vi2 + 2as | G = universal grav. constant |
| F = ma | J = impulse |
| w = mg | m = mass |
| F = Gm1m2/r2 | p = momentum |
| p = mv | s = displacement |
| J = Ft | t = time |
| Ft = mv | v = velocity |
| w = weight |