The Electromagnetic Spectrum Year 1 Science

Study James: Light Absorption, Reflection, and RefractionLight Absorption, Reflection, and Refraction Review: Video

-notes must be written neatly -letters should not be too BIG! -write on each line, unless instructed to skip a line for another section -have a puke page on standby: if you run out of room on the first page, then continue writing on the puke page (glue after the presentation!) Note- Taking Expectations

Your notes should contain the following at the top of page 21: -The essential question -The date (international style) and page # -The title (Electromagnetic Spectrum) Top of the Page

Skip 1 line underneath the title Here we go!

Electromagnetic Waves: waves of light

Electromagnetic Waves: waves of light; some are visible or invisible

Electromagnetic Waves: waves of light; some are visible or invisible; they are made by vibrating electric charges and can travel through a medium or open space

With your group, answer the following question: Electromagnetic Waves are an example of what type of wave? You have 20 seconds! BRAIN BREAK!

With your group, answer the following question: Electromagnetic Waves are an example of what type of wave? You have 20 seconds! Transverse Waves *write this to the right of the definition of electromagnetic waves* BRAIN BREAK!

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Frequency: frequency of electromagnetic waves is the # of waves per second (Hz)

With your group, come up with a good mathematical formula that represents frequency. You have 30 seconds! BRAIN BREAK!

With your group, come up with a good mathematical formula that represents frequency. You have 30 seconds! F = # of waves time *write the formula to the right of the definition of frequency* BRAIN BREAK!

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The Electromagnetic Spectrum: all the different frequencies of light

Skip 2 lines and write The Electromagnetic Spectrum Includes: on the 3rd line

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→ Radio Waves: low frequency waves with wavelengths of 1-10 cm

→ Radio Waves: low frequency waves with wavelengths of 1-10 cm; have the longest wavelengths

(ex: radio stations, microwaves, radar)

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→ Infrared Waves: slightly higher frequency waves than radio waves

(ex: remote controls, warmth of fire, satellites)

See Like a Snake Infrared Video

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→ Visible Light Waves: range of waves that humans can see

→ Visible Light Waves: range of waves that humans can see; each different wavelength is seen as a different color

With your group, come up with a good example of visible light. You have 20 seconds! BRAIN BREAK!

With your group, come up with a good example of visible light. You have 20 seconds! ROY G BIV BRAIN BREAK!

→ Visible Light Waves: range of waves that humans can see; each different wavelength is seen as a different color (ex: ROY G BIV)

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→ Ultraviolet (UV) Waves: frequencies slightly higher than visible light;

→ Ultraviolet (UV) Waves: frequencies slightly higher than visible light; wavelengths are too short for humans to see

→ Ultraviolet (UV) Waves: frequencies slightly higher than visible light; wavelengths are too short for humans to see (ex: sunburns, vitamin D production, kills bacteria, cataracts, cancer)

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→ X-Ray Waves: even higher frequencies that can get into your body

→ X-Ray Waves: even higher frequencies that can get into your body; they are absorbed by bone

(ex: medical x-rays)

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→ Gamma Ray Waves: highest frequency waves with the shortest wavelengths;

→ Gamma Ray Waves: highest frequency waves with the shortest wavelengths; can travel through matter; will damage cells

(ex: medical bone imaging, causes cancer, used to kill cancer cells)

-highlight in yellow electromagnetic waves, frequency, electromagnetic spectrum -underline in red the different parts of the EMS and their examples -circle in blue the 1) the type of wave that the EMS is 2) the formula for frequency Note Review

-draw a green box around the different parts of the Electromagnetic Spectrum Note Review

The Electromagnetic Spectrum: Review EMS Diagram

-Follow the instructions list on the diagram instructions -*Number the terms in order from lowest frequency to highest frequency* Diagram:EMS Review

Review The Electromagnetic Spectrum 8 October 2014

Our EQ was What are the different parts of the Electromagnetic Spectrum? Across from your notes at the top of page 20, answer the question putting the parts in order from lowest to highest frequency. Review EQ