PhysicsChapter 1: Heat Capacity and Modes of Heat Transfer
Body, Cooking, Engines
Definition
Overview
The human body, cooking systems, and engines all involve multiple forms of thermal-energy transfer.
Human Body
The body exchanges energy using: * conduction; * convection; * radiation; * evaporation. Sweating cools the body because evaporation requires energy taken from the skin.
Cooking
Cooking can involve: **Conduction through metal pans. Convection through hot liquids or air. Radiation** from grills or heating elements.
Engines
Engines convert energy into useful work, but some supplied energy becomes unwanted thermal energy. Cooling systems remove excess heat and protect components.
Quick revision
Revision Zone
Review the key facts, formulas and checks before you move on.Body, Cooking, Engines
Sticky Notes · Quick Revision
SWEAT
- Evaporation
PAN
- Conduction
HOT FLUID
- Convection
GRILL
- Radiation
60-second revision
- Body → several heat-transfer modes
- Cooking → conduction + convection + radiation
- Engine → useful energy + waste heat
Did you understand this topic?
Your answer is saved with your learning record. It does not mark the topic as mastered.