Indigo
F.4Hong Kong • Physical Sciences & Earth
⚡ Connecting physical laws, chemical reactions, and global landscapes.
A 2 kg block moving at 6 m s⁻¹ collides & sticks to a stationary 4 kg block. Find their common final speed.
✓ 2 m s⁻¹ (p = m₁u₁ = (m₁+m₂)v → 12 = 6v)
Physics
物理
Why does HF have a much higher boiling point than HCl despite having a smaller molecular mass?
✓ Strong intermolecular hydrogen bonds between HF molecules
Chemistry
化學
How does urbanization affect a storm hydrograph's lag time and peak discharge?
✓ Shorter lag time & higher peak discharge due to impermeable surfaces
Geography
地理
Japanese Ramen
Rich Broth • ラーメン
Mint Ice Cream
Chocomint • チョコミント
Stage Acting & Theatre
Spotlight scenes & expressive roles