A wave is a rhythmic disturbances that transfer
A wave is a rhythmic disturbances that transfer energy through matter or space.
A wave does work on everything in its path.
Wave Classification Mechanical Wave -- Waves that require a medium (matter) Electromagnetic Waves -- Waves that do not require a medium (matter)
Waves that require a medium A medium may be a gas, a solid, or a liquid. Simply put a medium is the material through which a wave transfer energy.
Waves that require a medium Examples 1. Ocean waves 2. Earthquakes
Waves that require a medium Cause rhythmic disturbance in the medium • Travel through medium • Transmit energy • Leave the medium unchanged after the wave passes
Waves that require a medium Examples 1. Radio waves 2. Visible light
Waves that require a medium Examples 1. Radio waves 2. Visible light
Waves that DO NOT REQUIRE a medium These waves do not require matter for transfer energy. Can travel through outer space or a vacuum.
NOW REMEMBER… There are two types of waves: 1. Mechanical Waves 2. Electromagnetic Waves Wave type is based on whether or not the wave needs a medium to travel through.
1. Different Movements of Waves 2. Physical Characteristics a Transverse Wave 3. Calculation of Wave Velocity
• Transverse waves – Medium moves at right angles to the direction of the wave • Longitudinal or Compressional Waves – Medium moves in the same direction as the waves are moving
Transverse waves – Medium moves at right angles to the direction of the wave
Longitudinal or Compressional Waves – Medium moves in the same direction as the waves are moving
Now Remember… There are two types of waves: 1. Mechanical Waves 2. Electromagnetic Waves AND… Waves are classified by the way they travel 1. Transverse Waves 2. Longitudinal or Compressional Waves
A. Crest - The highest point of a wave
B. Trough - The lowest point of a wave
Wavelength -- The distance between a point on one wave and the identical point on the next wave.
Wavelength -- Represented by the Greek letter lambda λ
Amplitude -- The distance from the crest or trough of a wave to the rest position.
- Slides: 20