What branch or branches of physics is the following?

[saintrenz]

Prof said that it may be more than one branches that includes the following. and I'm having a hard time knowing the difference of branches to sub branches.

Please make sure i got the right answer/s.
1. Fusion: Nuclear physics
2. Ticking of the clock: Quantum Physics,
Classical Mechanics
3. Tsunami: Thermodynamics, Geophysics
4. Heavenly Bodies: Astrophysics, Cosmology
5. Refraction of Light: Optics
6. Flowing of Water: Fluid Mechanics
7. Collision of two Cars
8. Sub Atomic Particles - Particle physics, Quantum Mechanics
9. Use of Gadgets - Engineering Physics
10. Fireworks - Mechanics

 

[haruspex]

2. Ticking of the clock:

Ticking suggests to me a mechanical escapement, so not quantum physics.

Collision of two Cars

Have you ever been given a problem concerning car collisions? They're very common.

Use of Gadgets

A bit vague this one. It says Use of, not Design of, so maybe involving human factors. Can you think of any branches that are concerned with those?

Fireworks

"Mechanics" seems a bit broad. Most involve propulsion, using what principles?

 

[saintrenz]

Thank You for the response, I already made some changes. Please check :)

1. Fusion: Nuclear physics
2. Ticking of the clock: Classical Mechanics
3. Tsunami: Thermodynamics, Geophysics
4. Heavenly Bodies: Astrophysics, Cosmology
5. Refraction of Light: Optics
6. Flowing of Water: Fluid Mechanics
7. Collision of two Cars - Kinematics
8. Sub Atomic Particles - Particle physics, Quantum Mechanics
9. Use of Gadgets - Quantum Mechanics
10. Fireworks - Thermodynamics

 

[haruspex]

7. Collision of two Cars - Kinematics

Not really. Kinematics is like geometry, but moving. It is not concerned with forces, masses etc.

9. Use of Gadgets - Quantum Mechanics

how so?

 

[saintrenz]

it's mechanics then.

use of gadgets maybe electromagnetism?

 

[haruspex]

use of gadgets maybe electromagnetism?

Did you understand my comment on this in post #2?