Shadowing Practice: Kinematic viscosity - Learn English Speaking with Video

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9 sentences
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1
This is dynamic viscosity.
2
This is kinematic viscosity.
3
What's the difference?
4
Dynamic viscosity measures a fluid's resistance to shear or flow, and its SI unit is pascal second.
5
Kinematic viscosity is dynamic viscosity divided by fluid density, and its SI unit is square meter per second.
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Dynamic viscosity tells us how strongly a fluid resists deformation, while kinematic viscosity also considers the fluid's density.
7
Easy trick.
8
Dynamic is resistance to shear.
9
Kinematic is dynamic viscosity divided by density.

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Vocabulary and speaking notes for this lesson

This speaking lesson is built on the video “Kinematic viscosity”. This video has 9 sentences and 78 words to shadow. The speech runs for 0:32.

Key vocabulary in this video

13 words from the video worth learning, with pronunciation and meaning:

WordPronunciationMeaning
dynamic adjective/daɪˈnæm.ɪk/Changing; active; in motion.
density noun/ˈdɛn.sə.ti/A measure of the mass of matter contained by a unit volume.
fluid noun/ˈflu.ɪd/Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma.
divide verb/dɪˈvaɪd/To split or separate (something) into two or more parts.
trick noun/ˈtɹɪk/Something designed to fool, dupe, outsmart, mislead or swindle.
strongly adverb/ˈstɹɔŋli/In a strong or powerful manner.
resist verb/ɹɪˈzɪst/To attempt to counter the actions or effects of.
metre noun/ˈmiːtəɹ/The basic unit of length in the International System of Units (SI: Système International d'Unités), equal to the distance travelled by light in a vacuum in…
viscosity noun/vɪsˈkɑsɪti/The state of being viscous.
kinematic adjective/kɪn.əˈmæt.ɪk/Of or relating to motion or to kinematics.
shear verb/ʃɪɚ/To remove the fleece from (a sheep, llama, etc.) by clipping.
deformation noun/ˌdɛfəˈmeɪʃən/Physically so.
pascal noun/pæˈskæl/In the International System of Units, the derived unit of pressure and stress; one newton per square metre. Symbol: Pa.

Pronunciation to watch

  • The “sh” and “zh” sounds: shear /ʃɪɚ/, deformation /ˌdɛfəˈmeɪʃən/
  • Long words — get the stress right: viscosity /vɪsˈkɑsɪti/, kinematic /kɪn.əˈmæt.ɪk/, deformation /ˌdɛfəˈmeɪʃən/

How to practise with this video

  1. Listen to the whole video once without speaking and note the words you do not know.
  2. Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
  3. Record yourself and compare with the original, paying attention to words like dynamic, density, fluid.

What is the Shadowing Technique?

Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.

Shadowing technique: read the full step-by-step guide →