Sonic Boom
Why do we hear a loud boom when a jet breaks the sound barrier?
Doppler Effect Basics
Why does an ambulance siren sound higher-pitched when coming toward you?
Beats in Music
How do “beats” occur when tuning musical instruments?
Standing Waves
How are standing waves formed on a guitar string?
Thermodynamics Basics
What is the “zeroth law” of thermodynamics?
Heat vs Temperature
Are heat and temperature the same thing?
Expansion of Solids
Why do bridges have expansion gaps?
Specific Heat Intuition
Why does water take longer to heat up than sand?
First Law of Thermodynamics
How does the first law apply to boiling water in a kettle?
Second Law of Thermodynamics
Why can’t heat flow from a cold object to a hot one naturally?
Heat Engines
Why can’t any heat engine be 100% efficient?
Refrigerator Working
How does a refrigerator keep things cold?
Thermal Equilibrium
Why does an ice cube eventually melt in a warm room?
Absolute Zero
What happens at absolute zero temperature?
Greenhouse Effect
Why do cars heat up when parked in sunlight?
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