Emergence%20of%20Modern%20Science

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Emergence of Modern Science

• NS 1300
• Dr. Hoge

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Is the invisibility cloak real? How does it work?
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Waves

• A wave is a wiggle in time

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Characteristics of Waves

• Wavelength
• Amplitude
• Frequency
• Velocity (remember, velocity includes the vector
  and magnitude)

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Longitudinal Waves

• Sound
• P waves

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Acoustics

• Interference
• Resonance
• Doppler Effect
• Volume (amplitude of the wave)
• Pitch (frequency)

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So, how do speakers work?
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Transverse Waves

• The electromagnetic spectrum
• S waves

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The Electromagnetic Spectrum

• Gamma Rays
• Cosmic Rays
• X-Rays
• Ultraviolet Radiation
• Visible Light Spectrum
• Infrared Radiation
• Microwaves
• Radio Waves

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Electromagnetic Waves

• Wave / Particle Duality

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Light

• The speed of light is a constant c
• Color
• Red Shift /
• Blue Shift

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Properties of Light (and other waves)

• Transmission
• Reflection
• Refraction
• Interference
• Resonance
• Polarization

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Lenses

• Concave Lenses
• Convex Lenses
• Focal Point

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Photoelectric Effect

• Photons and electrons are quantum particles

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So, how does my TV work? How about night vision
goggles?
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The Human Eye
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Quiz

• 1. T or F, a wave is a wiggle in time.
• 2. T or F, all waves require a medium to travel
  through.
• 3. T or F, refraction is the bending of a wave.
• 4. T or F, a concave lens makes objects look
  bigger.
• 5. T or F, the photoelectric effect occurs when a
  flow of
• electrons is used to create light.