THE HUMAN BODY IS AN ENERGY TRANSFORMATION MACHINE Identify the Energy Transformations Involved in the Human Body Input: Food (Chemical) Light (Radiant)

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Presentation transcript:

THE HUMAN BODY IS AN ENERGY TRANSFORMATION MACHINE Identify the Energy Transformations Involved in the Human Body Input: Food (Chemical) Light (Radiant) Sound (Sound) In-Between: Electrical Signals (Electrical) Chemicals (Chemical) Output: Motion (Kinetic) Waste (Chemical) Sound (Sound) Heat (Thermal)

What is energy? Energy – the capacity to do work or to accomplish a task Energy Transformation - the change of energy from one form to another

Types of Energy Define the different types of energy Use Pg to read about and produce a definition Include chemical potential energy, sound energy, radiant energy, nuclear energy, electrical energy, thermal energy, gravitational potential energy, kinetic energy and elastic potential energy Complete Page 129 Q # 1,2

Examples of Energy Transformation Machines! Car – From: fuel (chemical) – To: motion (kinetic), heat (thermal), noise (sound) Generator – From: fuel (chemical) or falling water (gravitational potential/kinetic) – To: electricity (electrical) Can you think of one?

Energy Transformation Equations Use an arrow ( → ) to indicate an energy transformation has taken place Example: A Car’s heater Takes in Gas → Moves engine → Produces Heat Chemical → Kinetic → Thermal

Practice Questions Pg 131 # 1-3