jueves, 20 de febrero de 2014

Homework

Physics of body mechanics

The human body is an amazing and intricate example of how physics manifests itself in our everyday lives.  Our skeletal muscles and joints are a complicated system of levers which allow us to move our bodies. 

Subtipics

Basic Muscle Physiology

There are three types of muscle in the human body:  Skeletal muscle, cardiac muscle and smooth muscle.  The physics of movement in the body only concerns skeletal muscle.  A skeletal muscle consists of many muscle fibers, each of which are muscles in their own right.  Muscle cells are long and cylindrical cells that can contract when stimulated by nerve signals.  

Newton's Laws of Motion

In physics, the most basic rules when it comes to movement are Newton’s laws of motion.  Newton’s first law is also called the law of inertia. 

Torque

Torque is a measure of how much a force acting on an object causes that object to rotate.  Since muscles and joints act in a hinge or lever.

Joints & Levers

A lever is a type of machine.  A machine is any device that helps us to do work.  We use machines to transform energy, or to transfer it from one place to another.  Machines can be used to multiply force, multiply speed and change direction of force.  






1 comentario:

  1. Good topic introduction. Please tell me where you are getting your information. What questions will you answer about this topic in future blog posts? Suggestions:

    What makes the human body so amazing?
    How can we make our bodies more efficient?
    Will robots ever be able to emulate the human body?

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