physics unit. objects that produce light are luminous ex. light bulbs non-luminous objects do not...

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OPTICS PHYSICS UNIT

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Page 1: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

OPTICSPHYSICS UNIT

Page 2: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

Page 3: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

Objects that PRODUCE light are LUMINOUS

EX. light bulbs

NON-LUMINOUS objects DO NOT produce their own light

EX. moon

Page 4: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

1. Incandescence:

heating a substance to a very high temperature

Ex. Light bulb has metal wire (tungsten) that gets heated to 2200oC

HowStuffWorks "How Light Bulbs Work“

Nelson Science

Page 5: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

2. Fluorescencehigh UV radiation gets absorbedex. highlighter markersFluorescent and Compact Fluorescent Lights (CFLs):mixture of mercury and argon gasesreleases less heat

Page 6: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

Optical Illusions Who Do You See? 20 Incredible Optical Illusions |

DailyCognition.com

Page 7: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

3. LED (light-emitting diode) pass electrical current through them don’t heat up so stay cool most energy efficient ex. ‘new’ Christmas lights, digital

clocks…HowStuffWorks

"How Light Emitting Diodes Work"

Page 8: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

4. Phosphorescence like fluorescence, energy gets absorbed however, gets released slowly over time ex. glow in the dark materials

YouTube - IAI Presentations Famous People Players

Steve Spangler Science - Tools and tips that make learning science fun!

Page 9: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

5. Chemiluminescence chemical reaction that produces light ex. glow stick

6. Bioluminescence chemiluminescence in livng organisms ex. fireflies, jellyfish… HowStuffWorks

Videos "Cool Underwater Creatures"

Page 10: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

7. Triboluminescence light produced when certain crystals

rubbed together or crused ex. eating Wintogreen Lifesavers in the

dark!

Page 11: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

8. Electrical Discharge Produced by electrical current passing

through a gas causing gas to glow ex. neon lights, lightning

Page 12: PHYSICS UNIT. Objects that PRODUCE light are LUMINOUS EX. light bulbs NON-LUMINOUS objects DO NOT produce their own light EX. moon

Optical Illusions Who Do You See? 20 Incredible Optical Illusions |

DailyCognition.com

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Growth and light emission of luminous basidiomycetes ...mycosphere.org/pdfs/Mycosphere_5_4_9.pdf1952, 1957). Luminous higher fungi emit greenish light with a maximum emission in the

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Where do we get light?. A luminous object is one that produces light. An illuminated object is one that reflects light. Luminous Objects Illuminated Objects

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E Media details Light Perspectives reference book · Radiance and illumination Luminous architectural elements and objects are very popular, yet the appeal of such features presents

Luminous object: something that produces its own light The Moon is bright only because it reflects the Suns light. Therefore, the Moon is NOT luminous

Light Pollution- Luminous Restrictive Measures · Light Pollution- Luminous Restrictive Measures D.T. Nikolaou, F.V. Topalis National Technical University Of Athens School Of Electrical

41 - Light - Light.pdf41 Light Mr C JCS 2 January 09, 2014 Some objects are luminous they give out light. e.g. the sun, a fire, a light bulb. The sun is our main source of light. Light

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Objects can either be: Luminous (produce their own light) ex: Sun Non-luminous can be seen because it is able to reflect light Q: So what are the

Luminous Source produces its own light eg. the sun, a light bulb, a camp fire, a firefly Non-Luminous Source: does not produce its own light

Plane Mirrors. Most objects that you can see are non- luminous (you can see them because they reflect light to your eyes). Most non-luminous objects have

LFC-050-LE Light Flux Color and Luminous Efficacy

TEACHING POINT 1.Review the echo method.[ 10 min] 2.Identify luminous and non- luminous objects.[5 min] 3. Properties of light.[20min]

luminous object: something that produces its own light

By Mr. Reece. Objects that can make their own light are ________________. luminous

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© Boardworks Ltd 2003 Reflected light How do light rays from a book and other such (non-luminous) objects reach our eye? Light from the lamp or another

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Sources of light What sources of light can you think of? Can you distinguish between “luminous” and “non- luminous” objects? Which is the Sun? The Moon?

Chapter 7 Light. Some definitions Luminous: Something that produces light. The sun is a luminous object that provides almost all the natural light on

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warwick.ac.uk · Web view: We use the word luminous to describe objects that emit visible light. Some astronomical objects emit infrared radiation (black-body radiation) but not visible

Luminous 4 | Passion Towards Light in Architecture

Light. What causes light? Objects that give off their own light are called luminous. They are light sources. The sun is luminous. The moon is not. ALL

Spectroscopy – the study of the colors of light (the spectrum) given off by luminous objects. Stars have absorption lines at different wavelengths where