Reference no: EM133435163
Assignment:
Passage:
Waves are kinetic energy moving through a solid, liquid, gas or vacuum (no air). The energy of a wave transfers from one molecule to another molecule. Two major types of waves are Mechanical and Electromagnetic.
Properties of waves include frequency (number of waves per time---Hertz), velocity (how fast the wave moves---meter per second), amplitude (amount of energy present in a wave), wavelength (the distance between two crest or two trough---meter) The energy of wave moves through a medium (solid, liquid, or gas).
Characteristics of waves: reflection, refraction, diffraction, and interference. Reflection is the bouncing off of a wave from a surface like a mirror. Refraction is the bending of the wave through a medium at a specific velocity; for example looking at a glass of water with straws in them. The straws from eye level looks amplified and split at the level where the water level stops in the glass. Diffraction is the bend or changing of the direction of a wave through or around an obstacle; for example a rainbow or 3D glasses.
Mechanical waves can be broken into two types: transverse or compressional. They use a medium to travel. Examples of mechanical waves are ocean waves, earthquake waves, and sound waves.
Transverse waves the energy in a mechanical wave moves at a right angle to the direction the wave moves. Most of the time the energy moves up and down and the wave direction are right or left. Parts of a transverse waves are crest (top of the wave), trough (bottom of the wave), amplitude (rest position of the wave to the top), wavelength (distance between two crest or troughs).
Compressional waves the energy and the direction of the wave are parallel in a straight line. Parts of a compressional wave are rarefaction (stretched region) and compression (compressed region).
Electromagnetic waves do not need a medium to travel; they can travel through a vacuum (no air). The energy moves in a straight line. Examples of electromagnetic waves are gamma rays, X-rays, ultra-violet (UV), visible light, infrared (IR), microwaves, radio waves, TV waves, and cell phone waves.
Assignment Part 1
Read the passage above to complete the Frayer Model. Para-phrase in your own words using bullet style note taking.
1. Properties of Waves
2. Characteristics of Waves
3. Waves: Two Definitions
4. Everyday Examples
5. Non-Examples
Assignment Part 2
Read the passage above to complete the Venn Diagram. Para-phrase in your own words using bullet style note taking.
1. Mechanical Waves
2. Electromagnetic Waves