"On successful completion of this module, students should be able to: ? describe how unsafe workplace practices can lead to injury ? identify risks to human eyesight from unsafe work practices ? describe the nature of light and the key components and operation of the human eye ? identify risks to human hearing from unsafe work practices ? describe how sound is transmitted and measured, as well as the components and operation of the human ear ? identify risks to the human skeleto-muscular system from unsafe work practices ? describe the components and operation of the human skeleto-muscular system; the concepts of work, force, moments and levers; and how the concept of a force and moment can be used to determine safe work practices ? identify risks to the human respiratory system from unsafe work practices ? describe the components and operation of the human respiratory system and the operation of an air-filtration system."
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