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Waves DO NOW MONDAY Tell the type of heat transfer happening at each letter. Waves DO NOW MONDAY Tell the type of heat transfer happening at each letter.

Waves DO NOW MONDAY Tell the type of heat transfer happening at each letter. - PowerPoint Presentation

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Uploaded On 2020-08-28

Waves DO NOW MONDAY Tell the type of heat transfer happening at each letter. - PPT Presentation

A B C DO NOW TUESDAY Give your own definition of a wave Learning Targets 11a Define mechanical wave 12a Define electromagnetic wave 13a Identify an electromagnetic ID: 810056

waves wave mechanical wavelength wave waves wavelength mechanical electromagnetic frequency amplitude transverse energy identify explain speed answer targets learning

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Slide1

Waves

Slide2

DO NOW MONDAY

Tell the type of heat transfer happening at each letter.

A



B



C

Slide3

DO NOW TUESDAY

Give your own definition of a wave.

Slide4

Learning Targets

1.1a Define mechanical wave.

1.2a Define electromagnetic wave

.

1.3a Identify an electromagnetic wave.

1.4a Identify a mechanical wave. 1.5a Differentiate between mechanical and electromagnetic waves.

Slide5

Etch-A-Sketch

Use pages 14-17 in the textbook to complete the handout.

Write the big ideas/important details on the right and then draw a picture to help you understand the word on the left.

If you work

alone quietly and very hard for the first 20 minutes, then you may work with the person at the table with you for the last 20 minutes, provided that you get your work completed TODAY.

Any work not completed today is HOMEWORK.

Slide6

DO NOW WEDNESDAY

Answer the two questions on the sheet given to you.

1

2

Slide7

Learning Targets

1.1a Define mechanical wave.

1.2a Define electromagnetic wave

.

1.3a Identify an electromagnetic wave.

1.4a Identify a mechanical wave. 1.5a Differentiate between mechanical and electromagnetic waves.

Slide8

Slide9

What’s a wave?

Wave

: a rhythmic disturbance that transfers energy through matter or space

Two general types of waves:Mechanical waves

Electromagnetic waves

Slide10

Mechanical Waves

Require matter to travel through

The matter the mechanical wave travels through is called a

MEDIUM

Examples of a medium that a mechanical wave can travel through: sound waves, earthquake waves, water waves

Can be transverse or longitudinal

Longitudinal Wave

Transverse Wave

Slide11

Mechanical Waves

Two types of mechanical waves:

Transverse

: matter moves in the medium at

right angles to the direction that the wave is travellingExamples: water

waves, S-type earthquake wavesLongitudinal: vibration is parallel to the direction of motion of the wave; back and forth motion; also called compressional waves

Examples: sound waves, P-type earthquake waves

Slide12

Transverse Waves

Crest: highest point of a transverse wave

Trough: lowest point of a transverse wave

Amplitude: the amount of energy carried by a wave; corresponds to the height of a transverse wave

Wavelength: the distance between two identical points on a wave

Slide13

Longitudinal/Compressional Waves

Rarefaction: expanded portion of the wave; particles are spread apart

Compression: compressed (squeezed) portion of the wave; particles are pushed together

Wavelength: the distance between two identical points on a wave

Amplitude: the amount of energy carried by a wave; corresponds to the amount of compression in a longitudinal wave

Slide14

DO NOW FRIDAY

Answer the two analyzing data

multiple choice questions

on the sheet that was given to you.

Slide15

DO NOW MONDAY

Identify the parts of the transverse wave labeled with letters below.

A

B

C

D

Slide16

Learning Targets

1.2b Identify the different parts of a wave.

1.3b Explain the strength of the wave by analyzing amplitude and wavelength.

1.4b Explain the relationship between the frequency and the type of wave.

Slide17

Amplitude- amount of energy carried by a wave

Low Amplitude

Medium Amplitude

High Amplitude

Slide18

Wavelength- distance between two identical points on a wave

Short Wavelength

Long Wavelength

Slide19

Frequency- the number of waves that pass a given point in 1 second

Low Frequency

High Frequency

Slide20

Relationship between amplitude, wavelength, frequency, and energy

HIGH AMPLITUDE = HIGH ENERGY

LOW AMPLITUDE = LOW ENERGY

LONG WAVELENGTH = LOW FREQUENCY = LOW ENERGY

SHORT WAVELENGTH = HIGH FREQUENCY = HIGH ENERGY

Slide21

DO NOW TUESDAY

Use the following terms to answer the numbers below.

Medium Transverse Longitudinal Energy

Compression Rarefaction

Waves transfer this.

Waves in which the matter moves at right angles to the direction of the wave .

The matter a moves through.Waves in which the matter moves parallel to the direction of the wave.

Expanded portion of a longitudinal wave.

Squeezed together portion of a longitudinal wave.

Slide22

Quiz

Expectations

QUIET

Do your best.

(Eyes on own paper.)

Finished? (Turn your scantron

over and write a note or draw a picture for Mrs. Dyer on the back.)

Slide23

Learning Targets

1.3b Explain the strength of the wave by analyzing amplitude and wavelength.

1.4b Explain the relationship between the frequency and the type of wave.

Slide24

Wave Equation

The speed of a wave is equal to its frequency times its wavelength.

The equation is:

Speed = frequency x

wavelengthUse the triangle below to solve for the speed, frequency, or wavelength of a wave.

v

λ

f

Slide25

Wave Equation

Example:

A tuning fork has a frequency of 310 Hz. The wavelength of the sound produced by the tuning fork is 1.32 m. Calculate the speed of the wave.

SOLUTION

:

Given: Formula to solve for missing part: 

 = Setup/Solution

:

f

=

v

=

Slide26

Wave Equation

Guided Practice

What is the speed of a wave with a frequency of 760 Hz and a wavelength of .45 m?

Given:

Formula

:   Setup/Solution:

Slide27

Wave Equation

Guided Practice

What is the frequency of a wave that is moving at 30 m/s with a wavelength of .35 m?

Given

:

Formula:  

Setup/Solution:

Slide28

Wave Equation

Guided Practice

What is the wavelength of a wave moving at 340 m/s with a frequency of 256 Hz

?

Given

: Formula:   Setup

/Solution:

Slide29

DO NOW WEDNESDAY

Answer the two multiple choice questions on the paper given to you.

Slide30

Learning Targets

1.5a Differentiate between mechanical and electromagnetic waves.

Slide31

Electromagnetic Spectrum

You will work with your group to create a poster/visual of the electromagnetic spectrum.

Be sure to follow the scoring guide given to you.

You will only have today to work on this.

Slide32

DO NOW THURSDAY

Calculate the frequency of a wave that is moving at 35 m/s with a wavelength of .45 m.

v

λ

f

Slide33

Learning Targets

1.2b Identify the different parts of a wave.

1.3b Explain the strength of the wave by analyzing amplitude and wavelength.

1.4b Explain the relationship between the frequency and the type of wave.

1.5b Compare and contrast a transverse and a longitudinal wave.

Slide34

DO NOW FRIDAY

Answer the two multiple choice questions on the paper given to you.

Slide35

Learning Targets

1.5a Differentiate between mechanical and electromagnetic waves.

1.3b Explain the strength of the wave by analyzing amplitude and wavelength.

1.4b Explain the relationship between the frequency and the type of wave.

Slide36

Electromagnetic Waves

Do not require a medium through which to travel (means they can travel through a vacuum such as space)

Examples: radio waves, microwaves, infrared waves (heat), light waves, UV rays, X-rays, gamma rays

Are transverse

waves

Slide37

All electromagnetic waves travel at the same

speed.

Their speed is the speed of light = 300,000,000 m/s

That’s 186,000 miles/second!!!!!!

Slide38

Slide39

EXIT SLIP WEDNESDAY

Complete the T chart that you were given to differentiate between mechanical and electromagnetic waves.

Mechanical Waves

Electromagnetic Waves

Slide40

Learning Targets

1.1a Define mechanical wave.

1.2a Define electromagnetic wave.

1.3a Identify an electromagnetic wave.

1.4a Identify a mechanical wave. 1.5a Differentiate between mechanical and electromagnetic waves.

Slide41

DO NOW THURSDAY

Each table will be assigned a word from the Etch-A-Sketch Sheet.

You will write the word, the definition/important details about the word on the right side of your page and Sketch a good picture to help you remember it on the left side of the page.

You will have 3 minutes to do this.

You will post your page on the wall.

Everyone in the class will do a gallery walk around the room and complete their Etch-A-Sketch WS, then turn in. You will have 7 minutes to do this.

Slide42

Instructions for THURSDAY

If you made

Mastery

on your Exam, you will do an enrichment activity on the

ChromeBooks, If you would like to redo questions that you missed on the exam, you may do so for half credit.If you made

Progressing, you will be given a redo sheet with the questions you missed and your incorrect answer. You will choose a new answer and explain why it is the correct answer. You may use your notes for this. You will receive half credit for every question you get correct.If you made Needs Improvement, you will receive additional instruction from me and will redo the questions you missed on the exam.