Biomechanical movement (5) 0.0 / 5 ? Sports Sciencebiomechanical principles and levers ASAQA Created by: emilyxdouglasCreated on: 26-03-18 19:17 linear motion motion in a straight or curved line, with all the body parts moving the same distance at the same speed in the same direction 1 of 20 inertia the resistance an object has to a change in its state of motion 2 of 20 Newtons first law of inertia a force is required to change the state of motion 3 of 20 Newtons second law of acceleration the size and direction of the force determines the size and direction of acceleration 4 of 20 Newtons third law of motion for every action force there is an equal and opposite reaction force 5 of 20 ground reaction force the equal and opposite force exerted on a performer who applies a muscular force on the group 6 of 20 scalar quantity when measurements are described in terms of just their size or magnitude 7 of 20 centre of mass this is the point of balance 8 of 20 line of gravity this is the line extending vertically downwards from the centre of mass 9 of 20 area of support base the larger the area, the greater the stability 10 of 20 fulcrum the point about which the lever rotates 11 of 20 resistance the weight to be moved by the lever system 12 of 20 effort the force applied by the users muscle of the level system 13 of 20 first class lever the fulcrum lies between the effort and resistance 14 of 20 second class lever the resistance is between the fulcrum and effort 15 of 20 third class lever the effort is between the fulcrum and the resistance 16 of 20 force arm the length of the line between where the fulcrum and the effort are labelled 17 of 20 resistance arm the length of the line between where the fulcrum and the resistance are labelled 18 of 20 mechanical advantage where the force arm is longer than the resistance arm 19 of 20 mechanical disadvantage where the resistance arm is longer than the force arm 20 of 20
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