Physics maturita questions

Prof Kolzrtova today gave us Physics maturita questions from this year. However she told us she wouldn't change it next year.
So if I decide to do the maturita from Physics, I'll have to talk for 8 minutes about one of these questions (plus count one example, but that'll be rather easy):
1) Motion of bodies with constant acceleration, cinematics and dynamics
2) Steady circular motion of a mass point, cinematics and dynamics
3) Rigid body mechanics
4) Fluid mechanics
5) Gravitational and electric fields
6) Forms of energy and their conversions. Work. Laws of conservation
7) Structure and properties of gases
8) Structure and properties of liquids
9) Structure and properties of solids
10) Phase transitions
11) Direct current circuits
12) Electric current in metals and semiconductors
13) Electric current in liquids and gases
14) Alternate current circuits
15) Reciprocal influence between bodies and fields (electric, magnetic)
16) Electromagnetic induction
17) Vibratory motion, mechanic and electric oscillators
18) Mechanical waves
19) Acustics
20) Electromagnetic waves
21) Optical imaging by reflection
22) Optical imaging by refraction
23) Basics of quantum physics. Electron cloud of an atom
24) Properties of atomic nucleus and nuclear reactions
25) Detection and accelerating of elementary particles

Some of these seem really easy to me (6, 7, 8, 9, 10, 23), some seem impossibly hard or too vague to talk about (1, 2, 11, 21, 22).