This document provides an overview of basic biomechanics concepts including:
1) Definitions of scalar and vector quantities and methods for vector addition and subtraction.
2) Newton's laws of motion, including inertia, relationships between force, mass and acceleration, and action-reaction pairs.
3) Types of forces like normal, tensile, and frictional forces.
4) Concepts of torque, lever systems, and mechanical advantage, along with examples like microscopes and lifting.
5) Units and formulas for quantities like pressure, weight, and calculating simple torque.
Pedagogy of Physical Science (Part II) - Laws of motion, Laws of Motion, Science, X std Science Samacheerkalvi Science, II year B.Ed., Pedagogy, Physics, X chapter I
Pedagogy of Physical Science (Part II) - Laws of motion, Laws of Motion, Science, X std Science Samacheerkalvi Science, II year B.Ed., Pedagogy, Physics, X chapter I
First-year BPO - Biomechanics. here are the essential notes required to understand basic biomechanics regarding the human body and the forces acting on it.
IN BIOMECHANICS, LEVERS ARE THE MAINSTAY OF THE MOVEMENT. THE LEVERS ARE CLASSIFIED AS FIRST ORDER, SECOND ORDER AND THIRD ORDER LEVERS RESPECTIVELY. OF THESE SECOND ORDER LEVER IS OF MECHANICAL ADVANTAGE AND THIRD ORDER LEVER IS OF MECHANICAL DISADVANTAGE.
Mechanics is branch of physics that deals with the motion of objects. Motion of a system experiences some physical quantities like displacement/distance, acceleration, velocity and time. Physics tries to investigate how these quantities are experienced and how they are related one to the other.
The motion of an object/particle could be studied under two broad visions.
Kinematics : it is a science that deals with the geometry of a moving object. i.e It basically lays on how the object is moving ,and what trajectory does it follows.The final goal of kinematics is to formulate a equation relating the relation between all the physical quantities experienced by a moving object(s,t,a,and v).
Dynamics: it is a science which deals with the cause of the change in velocity of the object. A Force cause an object change direction ,magnitude of velocity. In both case the object changes its velocity and the object is said to be accelerating.So that force is the cause for acceleration of an object.
Why does objects accelerate by the action of force?
when you kick a ball at rest it begins to move ,you run pulling a block on the ground ,car accelerates at different rate ,rocket accelerate at different rate. A satellite rotating about the Earth accelerates....etc .All these demonstrates the effect of force. When force is acting on an object some kind of energy is transferred in to it. The transfered energy makes a change in state of mechanical energy of the object and so that it accelerates.
Have you gone above the speed limit or driven without a license and gotten away? Well, you can’t get away with breaking the laws of physics! This session will highlight:
• Why loads rotate, shift and swing
• Load Stability and how to understand and control mobility
• Predicting outcomes of load moving based on physical laws
• Internal and external forces and restraint
• Choosing the most economical and practical equipment for a job
Speaker: Don Mahnke, President, Hydra-Slide, Ltd.