# Biomechanics

22 cards

Biomechanics, Term 1.

Created Mar 8, 2011
by
stephychamp

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 Side A Side B 1 What is Mass? The amount of matter that makes up an object 2 What is Weight? The amount of force the earths gravity has on any object 3 What is Velocity? It is the measurement of the rate of positional change 4 The two variables of Velocity are? Speed and Direction 5 What is Momentum? It is the measure of the amount of motion 'posessed' by a moving object 6 How can momentum be expressed as a mathematical formula? momentum= mass x velocity 7 Newtowns Third Law of Motion is also known as? Conservation of Momentum 8 How can the velocity of an object be changed? Apply more of less force 9 Name the three classes of levers? 1st Class Lever 2nd Class Lever 3rd Class Lever 10 What is friction? Friction opposes movement 11 What is linear motion? Give two sporting examples. All parts of the body that move in the same direction at the same time. 1- Skier down a slope... 12 What is Angular motion? Give two sporting examples All parts of the body rotate in the same direction at the same time at a fixed point 1- Hammer... 13 What is General Motion? General motion occurs when linear and angular motion occur together 14 What is torque? Torque is the action that causes a change in a bodys rotation 15 What is velocity? Velocity measures the positional charge of an object 16 What is inertia? Inertia is the tendancy of an object to maintain its velocity 17 What is impulse? Impulse is the amount of change in momentum 18 What is elasticity? Elasticity refers to the abiltiy of objects to give and then return to their original shape... 19 What is force summation? It is the summation of momentum and allows a performer to maximise the speed of their body... 20 Difference between Accuracy and Force Summation? Accuracy requires a force to be applied in a certain direction whilst force summation... 21 What is moment of inertia? It is the tendancy an object has to maintain its angular momentum 22 What is angular momentum? It is a measure of the amount of rotation posessed by the body