By Levels

Library

EXP: 08888
HITS: {{lyricTraining.hits}}888
STREAKS: {{lyricTraining.streaks}}888
TIME: {{lyricTraining.timeout / 1000}}88
{{word.word}}

{{cue.translated_text}}

{{lyricTraining.hint}}

x{{playblackSpeed.toFixed(2)}}

Loading ..

Not Found

{{annotation.word}} ({{annotation.pos_simplify}})

/{{annotation.phonetic}}/

{{annotation.translation}}

{{annotation.name}}

{{annotation.sub_type}}

{{annotation.definition}}
Back

Games & Quizzes

Training Mode - Typing
Fill the gaps to the Lyric - Best method
Training Mode - Picking
Pick the correct word to fill in the gap
{{game.name}}
{{game.description}} Requires {{game.required_annotions}} vocabulary annotations

Congratulations! You gained {{totalPoint}} XP

You may need to watch a part of the video to unlock quizzes

Don't forget to Sign In to save your points

Repeat Skip ({{game.question_index}}/{{game.questions.length}})
{{part}}
Repeat Skip ({{game.question_index + 1}}/{{game.questions.length}})
{{choice.text}}
{{choice.text}}

Make correct pairs from two columns

{{lyricTraining.finished && lyricTraining.timed_out ? 'Timed Out' : 'Challenge Accomplished'}}

PERFECT HITS {{lyricTraining.stats.PERFECT_HITS}} +{{lyricTraining.stats.PERFECT_HITS * 20}}
HITS {{lyricTraining.stats.HITS}} +{{lyricTraining.stats.HITS * 10}}
LONGEST STREAK {{lyricTraining.stats.LONGEST_STREAKS}} +{{lyricTraining.stats.LONGEST_STREAKS * 10}}
REMAINING TIME {{lyricTraining.timeout / 1000}}s +{{lyricTraining.timeout / 1000}}
TOTAL +{{lyricTraining.exp}}
{{word.word}} - {{dictionary.definition[0].phonetic || ("/" + dictionary.phonetics +"/")}} - {{word.translation}}

We couldn't find definitions for the word you were looking for.
Or maybe the current language is not supported

{{simpleDefinition.pos}}

{{simpleDefinition.def}}

{{word.word}}

Sentences & parts of speech:

  • {{tag.normal}} {{tag.pos_name}}

  • {{c.startTime | duration}}


    {{c.translated_text}}

All {{pos.pos_simplify}}
{{a.word || a.name}}
/{{a.phonetic}}/
{{a.type || a.sub_type}}
{{a.translation}} 		{{a.definition}}

Intuition on static and kinetic friction comparisons | Physics | Khan Academy

312,678 views

Khan Academy

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

95%
  • 7:01 / 7:20

Speech Rate:

  • 179 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

question

/ˈkwesCH(ə)n/

noun verb

What you ask about; issue. ask someone questions.

surface

/ˈsərfəs/

adjective noun verb

relating to or found on surface of something. Nature or emotions that show, but may not be true. rise or come up to surface of water or ground.

constant

/ˈkänstənt/

adjective noun

Happening frequently or without pause. unchanging situation.

coefficient

/ˌkōəˈfiSHənt/

adjective noun

Number by which another number is multiplied. numerical or constant quantity placed before and multiplying variable in algebraic expression.

reading

/ˈrēdiNG/

adjective noun verb

Things you read (book, magazines and web pages). Meaning or interpretation of something. To predict your future from cards, a crystal ball.

stationary

/ˈstāSHəˌnerē/

adjective

not moving or not intended to be moved.

sometimes

/ˈsəmˌtīmz/

adverb

occasionally, rather than all of time.

regular

/ˈreɡyələr/

adjective noun

arranged in constant pattern. Soldier who has a permanent job in the army.

kinetic

/kəˈnedik/

adjective

Of or relating to movement.

current

/ˈkərənt/

adjective noun

Happening or being in the present time. Movement of water in a river, or air in the sky.

different

/ˈdif(ə)rənt/

adjective

not same as another or each other.

roughly

/ˈrəflē/

adverb

In a manner that is violent or not careful.

friction

/ˈfrikSH(ə)n/

noun

Force preventing motion between bodies in contact.

several

/ˈsev(ə)rəl/

adjective determiner pronoun

separate or respective. more than two but not many. More than two but not a large amount.

velocity

/vəˈläsədē/

noun

Speed in a given direction.

Q
W
E
R
T
Y
U
I
O
P
A
S
D
F
G
H
J
K
L
Z
X
C
V
B
N
M