1. Waves: An introduction
Fri, 1/9
Mon, 1/12

2. Entry Task: In your journal, complete this entry task!
Draw the concept map and fill in the blanks.

3. Notes: Create a table like this
Type of wave
Mechanical
Electromagnetic
Form
Longitudinal
Transverse
Modeled as Transverse
Medium
(required / not required)
Description
(disturbance parallel / perpendicular to energy propagation)
Examples

4. Abbreviation or equation
All waves have:
Part of the wave
Abbreviation or equation
Plain English Definition
Amplitude
wavelength
frequency
velocity

5. What Is a Wave? Waves carry energy through matter or space.
A mechanical wave is a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium.
The matter through which a wave travels is called the medium.
Waves that require a medium are called mechanical waves.
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6. Transverse Waves
A transverse wave is a wave in which the particles of the medium move perpendicular to the direction the wave is traveling.
Examples include: water waves, rope waves, some earthquake waves
Light waves are modeled as transverse waves.
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7. Light and Electromagnetic Waves
Light does not require a medium.
Light waves are called electromagnetic waves.
An electromagnetic wave consists of oscillating electric and magnetic fields, which radiate outward at the speed of light.
Examples include: visible light, radio waves, x-rays

8. Longitudinal Waves
A longitudinal wave is a wave in which the particles of the medium vibrate parallel to the direction of wave motion.
Sound waves are longitudinal waves.
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(some Earthquake waves are also longitudinal)

9. Surface Waves In a surface wave, particles move in circles.
Surface waves occur at the boundary between two different mediums, such as between water and air.
The particles move both perpendicularly and parallel to the direction that the wave travels.
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10. Vibrations and Waves Waves are related to vibrations.
Most waves are caused by a vibrating object.
Electromagnetic waves may be caused by vibrating charged particles.
In a mechanical wave, the particles in the medium also vibrate as the wave passes through the medium.
Vibrations involve transformations of energy.

11. Interference

12. Plain English Definition
Wave Interactions
Type
Plain English Definition
Example
Refraction
Reflection
Diffraction
Constructive Interference
Destructive Interference

13. Assignment: Complete in your journal
Check over and finish video worksheet. See chapters 14-15(pp ) to complete any answers you might have missed.