Science 10 Textbook Alberta Jun 2026

Energy can be converted from one form to another, but some is always lost as low-grade heat (second law of thermodynamics).

A 50 kg student climbs 2 meters up a rope in 5 seconds. a) How much work did they do? (Assume gravity = 9.8 N/kg) b) What is their power output? science 10 textbook alberta

Energy flows through ecosystems (one way), but matter cycles (reused). Energy can be converted from one form to