Vocabulary: Physics, Energy & Motion

Vocabulary B1/B2

Physics, Energy & Motion

The exhaustive guide to the physical world! Discover the vocabulary of forces, waves, states of matter, and powerful science idioms.

Physics in Daily Life 🎬

Watch Teacher Sopheak explain how we use complex physics terms like "Momentum" and "Friction" to describe everyday situations and arguments. Pay attention to the pronunciation!

Vocab Check ⚡

ត្រួតពិនិត្យពាក្យ ⚡

Definition Match

What do we call an empty space with absolutely no matter inside it?

(តើយើងហៅលំហដែលគ្មានរូបធាតុទាល់តែសោះថាជាអ្វី?)

Vocab Check ⚡

ត្រួតពិនិត្យពាក្យ ⚡

Concept Match

What is the difference between Speed and Velocity?

(តើភាពខុសគ្នារវាង Speed និង Velocity គឺជាអ្វី?)

PRONUNCIATION TRAP ❌

Where is the stress in the word "Momentum"?

(តើសំឡេងសង្កត់សម្រាប់ពាក្យ Momentum នៅកន្លែងណា?)

Vocab Check ⚡

ត្រួតពិនិត្យពាក្យ ⚡

Idiom Meaning

If someone says a task is "Not rocket science", they mean...

(ប្រសិនបើគេនិយាយថា "Not rocket science" វាមានន័យថា...)

Vocab Check ⚡

ត្រួតពិនិត្យពាក្យ ⚡

Matter States

Which state of matter expands freely to fill any available space?

(តើទម្រង់រូបធាតុមួយណាដែលរីកសាយភាយពេញលំហ?)

Physics Mission 🎯

អនុវត្តជាក់ស្តែង!

Gravity Test 🍎 Hold a small, safe object (like a pen) and drop it. Say out loud in English: "Gravity pulls the object down to the earth."

Idiom Mission 🎯

អនុវត្តជាក់ស្តែង!

Write it down ✍️ Write a message to a friend using the phrase "Not rocket science" to explain something simple.

Teaching Mission 🎯

អនុវត្តជាក់ស្តែង!

Teach a friend 🙋‍♂️ Explain to a friend the difference between "Mass" (the amount of matter) and "Weight" (the pull of gravity).

Speaking Mission 🎯

អនុវត្តជាក់ស្តែង!

Voice Note 🎤 Record yourself saying these complex words clearly: "Trajectory", "Quantum leap", and "Refraction".

Ask a Question 🙋‍♂️

តើអ្នកមានចម្ងល់មែនទេ? សួរគ្រូនៅទីនេះ!

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Recent Questions

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Sokha 3 hours ago

Teacher, what is the difference between Mass and Weight?

Reply 👍 12

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Sopheak Pich Teacher 1 hour ago

Hi Sokha! Mass is the actual amount of matter inside an object (it never changes). Weight is how strong gravity pulls on that mass. If you go to the moon, your mass is the same, but your weight is much less! 🌕

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Vireak 5 hours ago

Why do we say "Light years" for distance instead of time?

Reply 👍 8

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Sopheak Pich Teacher 4 hours ago

Good question! Space is so incredibly big that regular miles or kilometers are useless. A "Light year" is the massive distance that light can travel in one earth year. 🌌

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Nita 8 hours ago

Is "Plasma" related to blood or physics?

Reply 👍 15

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Sopheak Pich Teacher 7 hours ago

It is both! In biology, plasma is the liquid part of blood. But in physics, Plasma is the fourth state of matter (a superheated, electrified gas like lightning or the sun). ⚡