Biomechanics Flashcards
What is linear motion? Examples
Motion in a straight line
100m sprint
Drag race
What is angular motion? Examples
Rotation around a central axis
Spinning figure skater
Spinning ball on finger
What is torque?
A force that causes or will tend to cause rotation
General motion?
Examples
Combination of both linear and angular motion
Running
Swimming
Inertia
An object won’t move or will continue to move unless acted upon by an external force
Action-reaction
For every action there is an equal and opposite reaction
What is force? Equation?
Force caused an object to accelerate
Force=mass x acceleration
What is momentum? Equation?
A measure of the amount of motion an object has
Momentum=mass x velocity
3 factors that affect projectile motion
Height
Angle
Speed
3 types of spin? What do each do?
Top- ball spins back
Back- increases balls flight time and distance
Side- balls curves
3 factors affecting coefficient of restitution (rebound)
Surface
Impact
Temperature
How do you increase stability ?
- increase mass
- increase friction between yourself and surface
- widen stance
- lower centre of gravity
Where is the cog of an adult?
Belly button
3 class levers? Examples?
1st class lever See saw 2nd class lever Wheelbarrow 3rd class lever Elbow
