Physics Midterm Spring Semester

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f = 1 / T

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44 Terms

1

f = 1 / T

The formula of frequency.

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2

Wavelength

The distance travelled by a wave in one complete oscillation.

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3

Frequency

The number of oscillations completed in one period.

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4

v = f * wavelength

Velocity’s formula.

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5

Hz = 1 / s = waves vibration cycles / s

Hertz’s formula.

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6

Constructive interference

Occurs when the crests of one wave overlap the crests of the other wave and cause an increase in wave amplitude.

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7

Destructive interference

Occurs when the crests of one wave ovelap the troughs of the other wave and cause a decrease in wave amplitude.

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8

Electromagnetic waves

Waves that are made of electric and magnetic waves.

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9

Electromagnetic spectrum

The range of all types of EM radiation; includes: radio and TV, microwaves, infrared, ROYGBIV, ultraviolet, X-rays, gamma rays.

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10

perpendicular

Electromagnetic waves move __ to the direction of travel.

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11

380 - 750

Human eyesight is from __ mm.

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12

Color

The frequency of light.

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13

Primary light colors

Colors that can be combined in diferent proportions to make all other colors, and visible to human’s eyes such as red, green, and blue.

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14

White

A combination of all the wavelengths/colors; made of red, green, and blue.

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15

Black

An absence of light; made of magneta, cyan, and yellow.

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16

Primary pigments

Magneta, Cyan, and Yellow.

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17

Paint ; Light

__ is subtractive ; __ is additive.

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18

particle

Light acts like a __ in the photoelectric effect experiment.

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19

waves

Light and electrons act like __ in the double slit experiment.

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20

particles

Electrons act like __.

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21

Photon

A light particle; or a group of energy, not a real particle, no mass, one quantum of energy.

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22

wavelength = planck’s constant / momentum (m*v)

De Brogile Equation

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23

6.63×10^-34 m²kg/s

Planck’s constant

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24

Quantum mechanics

Used at atomic sizes when the rules of large scale.

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25

wavelength / w = x / L

Single slit’s formula

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26

y = (m * wavelength * D) / d

Double slit to Diffraction Grating’s formula

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27

n1 * Sina1 = n2 * Sina2

Snell’s law

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28

C = 3×10^8 m/s

Speed of light

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29

n = Sin i / Sin r

Air into substance’s formula

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30

Total internal refraction

Optically denser to optically less denser; the light ray will not eneter the new medium but will be completely reflected back into the original medium.

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31

n = 1.33

Water’s index of refraction

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32

n = 1

Air’s index of refraction

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33

The critical angle

The angle of incidence at which a light ray passing from one medium to another less refractive medium experiences an angle of refraction of 90 degree.

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34

n1 * Sina = n2 * Sin90

Total internal reflection’s formula

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35

1 / f = 1 / di + 1 / do

Lens or Mirrow Law

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36

M = hi / ho = di / do

Magnification’s formula

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37

2 x f

Curvature of the lens

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38

Images

Real or virtual, upright or inverted, larger or smaller.

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39

Concave mirror

A mirror in which the reflecting surface is curved inwards and its center is further from the viewer than edges.

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40

Convex mirror

A curved mirror where the reflective surface bulges out toward the light source.

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41

Concave mirrors and convex lenses

Mostly making real images, except when the object is inside the focus.

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42

Convex mirros and concave lenses

Always making virtual images.

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43

are not

Mechanics __ always correct.

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44

n = C / v

When a ray of light is traveling from a medium into another medium.

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