TeacherPresentation:MECHANICAL WAVES: NEW

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Waves Part 1: Mechanical Waves

You've been abducted by aliens!

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Simulations used in this interactive are by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu).

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© Virtual Science Teachers 2022

Something very strange is going on!You

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You are gazing at the sky when suddenly you see something very odd...

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Before you get a chance to run, you realize....

You've been abducted by aliens!

Click on ship to begin.

They find you fascinating and want to keep you forever as one of their own. Clearly, this is not an acceptable fate for you. Your mission is to get back to Earth!

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As you are taken farther from Earth, you realize, you MUST do whatever it takes to get back home. Click on Earth to begin your mission!

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I'm Ditto! I want to see you get safely home! Click me for help at anytime!

Click here to cautiously head to the the control room.

And shhh! Don't let the others know I'm helping you!

The aliens have locked you in their cargo bay. Click on the PhET screen to try to escape.

you can write a title here

This is a paragraph of text waiting to be awesome content

code

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Click on me for help.

Simulations used in this interactive are by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu).

Click here when you know the code.

you can write a title here

This is a paragraph of text waiting to be awesome content

This door requires a code.

Enter the code here.

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Map of Ship

AUTOPILOTON

You walk into the empty control room. The aliens are all celebrating your capture in a different room and have the ship on autopilot. You notice a screen labeled "Map of Ship." Perhaps seeing the map can be useful to you!

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Access to the map will only be granted to those who can determine the code.

CONTINUE

CONTINUE

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Answer the questions in this video to get the code word that you need.

Click here when you know the code word.

Video Produced by PBS Learning Media

The code word is required to access the map.

lowercase letters only

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I'm rooting for you!

wavelength

amplitude

wavelength

amplitude

wavelength

Wavelength- the distance between successive troughs, crests, or identical parts of a wave.

The amplitude- the distance from the centre line (or the still position) to the top of a crest or to the bottom of a trough .

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Frequency

Frequency is a measure of how many waves pass a point in a certain amount of time.

This wave's frequency = 1 cycle/second = 1 Hertz

Lower Frequency Longer Wavelength Carries Less Energy Higher Frequency Shorter Wavelength Carries More Energy

I frequently wish I could live on Earth.

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One peak passes by the red dot per second. This measurement is the wave's frequency! The units are cycles per second, which is the same thing as Hertz.

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Quietly, you head down a hallway towards the escape ship.

Continue

Simulations used in this interactive are by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu).

Information about amplitude, pitch, and frequency

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They don't make it easy to get around in this ship! Click on the screen to obtain the code.

CODE required for entry!

Click on the screen.

Click on me for useful information!

Click here when you know the code.

You need the code to get through these doors.

Enter the code here.

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This is the door that opens to the escape ship. You're getting close. Click on the screen to get the code!

CODE required for entry!

Answer the questions in the video to get the code word.

Click here if this page does not load properly.

Click here when you know the code.

Click on me for useful information!

What is the amplitude of this wave?

14.0 cm

8.0 cm

7.0 cm

14.0 cm

8.0 cm

7.0 cm

Simulations used in this interactive are by PhET Interactive Simulations University of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu).

You need a code to open this door.

Enter the code here.

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The garage door is closed. Push the garage door button.

Garage Door

Use the draggable rulers to answer the next questions.

Excellent! The wavelength of this wave is 8.0 cm.

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Click here to learn more about frequency.

This is the last code you need to escape! Click on the screen.

Garage Door Code Required

Drag the rulers!

Subtitle

Use the draggable rulers to answer the next questions.

Excellent! The wavelength of this wave is 8.0 cm.

Back

Click here to learn more about frequency.

Click here when you know the garage door code.

Information about amplitude, pitch, and frequency

Drag the rulers!

Simulations used in this interactive are by PhET Interactive SimulationsUniversity of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu).

A code is required for the garage door.

Enter the code here.

Next

You made it! And looks like you have a stowaway!

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Click here to play with another waves simulation by PhET!

If requested by your teacher...

You did it Earthling! Thanks for letting me hitch a ride! I'm so excited to explore my new home! I hear Earth is amazing!

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