Waves

Polarization

Δ𝐸 Δ𝐴 Δ𝐸 Δ𝐴 stays the same with increasing distance from source decreases with increasing distance from source

Reflection 𝛼 𝛽 𝛼=𝛽

diffuse reflection specular reflection

Refraction > < sin 𝛼∙ 𝑛 1 = sin 𝛽∙ 𝑛 2 sin 𝛼 sin 𝛽 = 𝑐 1 𝑐 2 n1 c1 n2 c2 < > Refraction sin 𝛼∙ 𝑛 1 = sin 𝛽∙ 𝑛 2 sin 𝛼 sin 𝛽 = 𝑐 1 𝑐 2

Huygens–principle

Soundwaves

Problems: 8/4 and 8/10

Termodynamics

Heat capacity (C) and specific heat capacity(c) 𝐶= 𝑄 Δ𝑇 = 𝐽 𝐾 𝑐= 𝐶 𝑚 = 𝐽 𝑘𝑔∙𝐾 𝑄=𝑐∙𝑚∙Δ𝑇

Phase transitions Specific latent heat 𝐿= 𝑄 𝑚 = 𝐽 𝑘𝑔

Gas Laws 𝑝𝑉=𝜈𝑅𝑇 Boyle’s Law 𝑝𝑉= 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡 𝐼 𝑉 𝑇 = 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡 𝐼𝐼 Charle’s Law. 𝑝 𝑇 = 𝑐𝑜𝑛𝑎𝑡𝑠𝑛𝑡 𝐼𝐼𝐼 Gay-Lussac’s Law 𝑉 𝑁 = 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡 𝐼𝑉 Avogadro’s Law 𝑝 𝑇 ∙ 𝑉 𝑁 = 𝑘 𝐼𝐼𝐼 ∙ 𝑘 𝐼𝑉 𝑘 𝐼𝐼𝐼 ∙ 𝑘 𝐼𝑉 = 𝑘 𝐵 =1,38∙ 10 −23 𝐽/𝐾 𝑝𝑉=𝜈𝑅𝑇 𝜈= 𝑁 𝑁 𝐴 𝑝𝑉=𝑁 𝑘 𝐵 𝑇 (𝑘 𝐵 ∙ 𝑁 𝐴 =𝑅)

isobaric process – pressure stays constant isothermal process – temperature stays constant isochoric process – volume stays constant

Problems: 9/7 és 9/12