Light and Matter. Assignment (due: M, 9/20): 1.) Read Ch ) Ch. 4 problems 1-12; Ch. 5 problems
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1 Light and Matter Assignment (due: M, 9/20): 1.) Read Ch ) Ch. 4 problems 1-12; Ch. 5 problems
2 Key Concepts: 1. The Experience of Light 2. The Physical Properties of Light 3. Properties of Matter: Atoms and Molecules 4. Learning from Light 5. Doppler Effect
3 The Everyday Experience of Light 1. Energy and Power 2. Light and Color 3. Light and Matter Interactions
4 The Everyday Experience of Light 1. Energy and Power What s the difference?
5 1. Energy and Power Power is the rate at which energy is delivered or received. e.g., 1 watt = 1 joule/s
6 1. Energy and Power Power is the rate at which energy is delivered, received, or transmitted.
7 1. Energy and Power Light transmits energy because each photon has a certain energy associated with it.
8 1. Energy and Power Home energy usage: 1 kw-h (killo-watt hour = 1 kilo-watt * 1 hour)
9 The Everyday Experience of Light 2. Light and Color White Light Spectrum
10 The Everyday Experience of Light 2. Light and Color
11 3. Interaction of Light and Matter: a. Emission b. Absorption c. Transmission d. Reflection / Scattering
12 3. Interaction of Light and Matter Interaction of Light and Matter: a. Emission, b. Absorption, c. Transmission, d. Reflection / Scattering
13 3. Interaction of Light and Matter Interaction of Light and Matter: a. Emission, b. Absorption, c. Transmission, d. Reflection / Scattering
14 The Everyday Experience of Light 3. Interaction of Light and Matter
15 The Everyday Experience of Light 3. Interaction of Light and Matter
16 Physical Properties of Light What is light? a particle and a wave
17 Physical Properties of Light Wave and Particle
18 Physical Properties of Light Electromagnetic Wave Some properties: wavelength * frequency = speed = c energy = h*frequency
19 Physical Properties of Light Electromagnetic Wave
20 Physical Properties of Light
21 Properties of Matter 1. The Structure of Matter old school picture
22 Properties of Matter 1. The Structure of Matter
23 Properties of Matter 1. The Structure of Matter
24 Properties of Matter Vocabulary: The Atom Atom Nucleus Protons Neutrons Electrons
25 Properties of Matter
26 Properties of Matter Vocabulary: Atomic Number, Z Atomic Mass, A Isotope: Same Z, different A Examples: C12, C13
27 Properties of Matter Isotopes
28 Properties of Matter: Isotopes
29 Properties of Matter Vocabulary: Isotope Electrical Charge Q: Why isn t matter charged, in general?
30 Properties of Matter
31 Properties of Matter: Phases
32 Properties of Matter: Phases
33 Properties of Matter: Phases
34 Properties of Matter: Phases Evaporation Sublimation
35 Properties of Matter: Phases Triple Point of Water: Phase Coexistence Phase depends on: Temperature and Pressure
36 Properties of Matter: Phases Vocabulary: Ion Ionization Molecular Dissociation Plasma Pressure
37 Properties of Matter: Energy and Energy Levels
38 Properties of Matter: Energy and Energy Levels Energy Level Transitions
39 Properties of Matter: Energy and Energy Levels Photon/light emission
40 Properties of Matter: Energy and Energy Levels Photon/light absorption and emission
41 Light as an Investigative Tool
42 Light as an Investigative Tool
43 Light as an Investigative Tool
44 Light as an Investigative Tool
45 Light as an Investigative Tool
46 Light as an Investigative Tool
47 Light as an Investigative Tool
48 Light as an Investigative Tool
49 Light as an Investigative Tool
50 Light as an Investigative Tool
51 Light as an Investigative Tool
52 Light as an Investigative Tool
53 Light as an Investigative Tool
54 Light as an Investigative Tool
55 Light as an Investigative Tool
56 Light as an Investigative Tool
57 The Doppler Effect A change in wavelength due to relative motion. Applies to sound and light.
58 The Doppler Effect
59 The Doppler Effect
60 The Doppler Effect
61 The Doppler Effect
62 The Doppler Effect: Example
63 The Doppler Effect: Example Star Rotation The Disk of the Sun
64 The Doppler Effect: Example Star Rotation Red Blue The Disk of the Sun
65 The Doppler Effect: Example Star Rotation
66 HW and Extra Credit Opportunities 1. Mirror Lab Tours: Tu, Fr, 1pm or 3pm, ~60-90 minutes Call Cathi Duncan, for reservation 2. Flandrau: Observatory: 16 inch Reflector: W, Th, Fr, Sa: 7pm - 10pm 3. Flandrau: Planetarium Show - Every day. More details online: Assignment (due: M, 9/20): 1.) Read Ch ) Ch. 4 problems 1-12; Ch. 5 problems
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