Anatomy of a Wave 6.2.3.2

Anatomy
of a Wave

Lesson 6.2.3

1- Construct a model of a typical wave

2- Identify the wavelength, amplitude, crest, and trough of a wave

3- Relate wavelength and amplitude to the energy carried by a wave

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​Today's Goals:

Notebook
Page 30

Draw

Draw or describe what is a wave?

From the Latin amplitudo which means wide or width

Amplitude

​Old French creste which means the highest part of a helmet

Crest

Old English trog meaning shallow vessel or tray

Trough

Comes from the Latin frequentia which means to assemble in great numbers

​​Frequency

Draw

Where do waves come from?

What do you NOTICE about the waves?

What do you WONDER?

​The highest point of a wave.

​​Crest

​The bottom point of a wave.

Trough

​The distance from the top or bottom of a wave to the resting point/origin. OR half the height of the wave.

Amplitude

​The distance form one point on a wave to the same point on the next wave.

Wavelength

​Label on Page 30

Hotspot

Which spot represents the amplitude of the wave?

Labelling

Label the trough and the crest on this wave diagram.

Drag labels to their correct position on the image

Crest

Trough

#​1- from Crest to Crest

#2 - from trough to trough

#3 - a point passing through rest point to the same point in the next wave

Finding Wavelength

Draw

What is the wavelength of the wave?

• All waves have peaks called crests and bottoms called troughs.

• A wavelength measures the distance from crest to crest or trough to trough.

• Amplitude is half the height of a wave.

​

​Remember:

Hotspot

What spot on the wave diagram represents the crest?

Hotspot

What spot on the wave diagram represents the wavelength?

​High Amplitude waves carry High Energy

Low Amplitude waves carry Low Energy

Amplitude

​Long Wavelengths carry Low Energy

Short Wavelengths carry High Energy

​​Wavelength

​Wave energy depends on the following:

Draw

Would a surfer prefer high amplitude waves or low amplitude waves? WHY?

Open Ended

What type of amplitude and wavelengths will you probably run into if there is a red flag on the beach?

Draw

What is a tsunami?

Multiple Choice

A tsunami has high energy and is very destructive, so it will create waves with __

• high amplitude & high frequency

• high amplitude and low frequency

• low amplitude and high frequency

• low amplitude and low frequency

Categorize

Options (6)

High Amplitude

Low Amplitude

Long Wavelength

Short Wavelength

Low Frequency

High Frequency

Match what will create a high energy wave and a low energy wave.

HIGH ENERGY

LOW ENERGY

​Tomorrow we will be having a whale of a time working with WAVES in our Assignment