Conservação da Energia Mecânica: passo a passo algébrico e visual

Section role: supports the 'Codificando a Natureza' section while the teacher formalizes the mathematical language of energy based on the student's skate track data. Slides: (1) Title — 'Da Intuição ao Cálculo'; (2) Energia Cinética — bullets: formula Ec = mv²/2, units, physical meaning of squared velocity; (3) Energia Potencial Gravitacional — bullets: formula Epg = mgh, reference level choice; (4) Energia Mecânica Total — bullets: definition Em = Ec + Ep, scalar nature of energy; (5) O Princípio da Conservação — bullets: Em(inicial) = Em(final), condition of conservative systems; (6) Diagrama de Barras 1 — visual representation of energy transformation at the top of a ramp; (7) Diagrama de Barras 2 — energy distribution at the bottom of the ramp; (8) Exemplo Prático 1 — step-by-step calculation of velocity from a known drop height; (9) Exemplo Prático 2 — determining maximum height from initial velocity; (10) O Papel do Atrito — brief introduction to non-conservative forces setting up thermodynamics. Closing slide: 'Como a energia total do skatista mudaria se houvesse atrito na pista?' — hands control back to the teacher for discussion.

Lara da Teachy