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}}

23.4 Potential Energy of a Spring

9,637 views

MIT OpenCourseWare

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

97%
  • 5:12 / 5:20

Speech Rate:

  • 130 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

direction

/dəˈrekSH(ə)n/

noun

Describes the way you are going, e.g. North.

potential

/pəˈten(t)SHəl/

adjective noun

having capacity to develop. latent qualities that may be developed.

restoring

/rəˈstôr/

verb

bring back or re-establish.

positive

/ˈpäzədiv/

adjective noun

Showing agreement or support for something. positive quality.

conservative

/kənˈsərvədiv/

adjective noun

Resistant to change. Person with traditional ideas; doesn't like change.

example

/iɡˈzampəl/

noun verb

Thing, person which represents a category. be illustrated or exemplified.

calculate

/ˈkalkyəˌlāt/

verb

determine mathematically.

negative

/ˈneɡədiv/

adjective exclamation noun verb

characterized by absence of distinguishing features. no. The opposite to a positive electrical charge. refuse to accept.

suppose

/səˈpōz/

verb

think or assume that something is true or probable but lack proof.

stretch

/streCH/

noun verb

Making arm, leg muscles longer to ease them. be made or be capable of being made longer or wider without tearing or breaking.

introduce

/ˌintrəˈd(y)o͞os/

verb

To make someone known to another by name.

gravitational

/ˌɡravəˈtāSH(ə)nəl/

adjective

relating to movement towards centre of gravity.

coordinate
adjective noun verb

equal in rank. Point on a map defining a location e.g. 135N, 34W. bring elements into harmony.

compress
noun verb

pad pressed on to body to relieve inflammation or stop bleeding. To press tightly together.

reference

/ˈref(ə)rəns/

noun verb

action of mentioning or alluding to something. To cite a piece of research in speech or writing.

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