Dynamics and Statistics

Content and key concepts

This chapter links observed phenomena, physical models, and mathematical laws, first form a qualitative picture, then explore the relationships in interactive models.
GEF · 10 grade
PIF · Baseline
theory + model
19
Pages in this chapter
Three meaningful routes: concepts, laws, and model research.
19.1
Force and traffic equations
Building a physical model
19.2
Balance of the solid body
Balance of power and moments
19.3
Rounding and rotation
Angular characteristics
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Study route
19.1 Force and traffic equations
The problem of dynamics begins with the selection of the body and the system of counting, then represents only the forces attached to the body, and records Newton's second law in projections.
19.2 Steady body balance
- For the balance of steady and rotating motion, the sum of the forces and moments relative to any axis shall be equal to zero.
19.3 Rounding and rotation
- Rotation is convenient to describe angle, angle speed and angular acceleration. The linear characteristics of the point depend on its distance to the axis.
Basis of contents:
The federal work programme on physics, the GEF OSL/GS and the thematic sequence of popular school lines are written specifically for Alterna and does not reproduce textbooks.