1. Waves

7. Polarization

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

9. Reflection 𝛼 𝛽
𝛼=𝛽

10. diffuse reflection
specular reflection

11. 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

14. Huygens–principle

15. Soundwaves

16. Problems: 8/4 and 8/10

17. Termodynamics

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

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

20. 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)

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

22. Problems: 9/7 és 9/12