Ch. 14 Waves Section 1

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Ch. 14 Waves
Section 1:
Recognize that waves transfer energy.
Distinguish between mechanical waves and electromagnetic waves.
Explain the relationship between particle vibration and wave motion.
Distinguish between transverse waves and longitudinal waves.
Section 2:
Identify the crest, tough, amplitude, and wavelength of a wave.
Define the terms frequency and period.
Solve problems involving wave speed, frequency, and wavelength.
Describe the “Doppler effect”.
Section 3:
Describe how waves behave when they meet an obstacle or pass into another medium.
Explain what happens when two waves interfere.
Distinguish between constructive interference and destructive interference.
Explain how standing waves are formed.
Chapter 15 Sound and Light
Section 1:
Recognize what factors affect the speed of sound.
Relate loudness and pitch to properties of sound waves.
Explain how sonar and ultrasound imaging works.
Section 2:
Recognize that light has both wave and particle characteristics.
Relate the energy of light to the frequency of electromagnetic waves.
Describe the different parts of the electromagnetic spectrum.
Explain how electromagnetic waves are used in communications, medicine, and other
areas.
Section 3: Reflection and Refraction
Explain the Law of Reflection.
Explain why objects appear to be different colors.
Chapter 18: Communication Technology
Section 1: Signals and Telecommunication
Distinguish between signals and codes.
Compare analog signals to digital signals.
Describe two advantages of fiber optics over metal wires for transmitting signals.
Section 2: Telephone, Radio, and Television
Describe how a telephone converts sound waves to electric current during a phone call.
Explain how radio and television signals are received and changed into sound and
pictures.
Section 3: Computers and the Internet
Describe the binary nature of computer data and the use of logic gates.