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Why does light slow down in water?

1,034,338 views

Fermilab

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English

Speech Time:

98%
  • 10:12 / 10:24

Speech Rate:

  • 173 wpm - Fast

Category:

  • Science & Technology

Tags :

Intro:

Video Vocabulary

because

/bēˈkəz/

conjunction

For a reason.

totally

/ˈtōdlē/

adverb

completely.

thought

/THôt/

noun verb

idea or opinion produced by thinking, or occurring suddenly in mind. To have an idea, opinion or belief about something.

certainly

/ˈsərtnlē/

adverb

used to emphasize speaker's belief that what is said is true.

utterly

/ˈədərlē/

adverb

Completely.

suppose

/səˈpōz/

verb

To imagine or guess what might happen.

internet

/ˈin(t)ərˌnet/

noun

global computer network providing information and communication facilities.

divided

/diˈvīdəd/

adjective verb

Being split in two or more pieces. To separate something into equal pieces.

pictures

/ˈpik(t)SHər/

noun other verb

painting or drawing. Movies; films. To show someone or something in an image.

material

/məˈtirēəl/

adjective noun

Relevant; (of evidence) important or significant. Cloth; fabric.

physics

/ˈfiziks/

noun other

branch of science concerned with nature and properties of matter and energy. The study of heat, light, and energy on objects.

written

/rīt/

adjective other verb

Expressed using writing. To invent or create a computer program. To create a song or piece of music.

learned

/ˈlərnəd/

adjective verb

having acquired much knowledge through study. To get knowledge or skills by study or experience.

refraction

/rəˈfrakSH(ə)n/

noun

Light changing direction through glass or water.

objects
noun other verb

material thing. The things that the action of a verb acts upon. express disagreement.

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