Bio mech

What is biomechanics
Biomechanics is the study of the structure and function of biological systems
What is linear motion
All parts of a body move the same distance over the same time
What is displacement
Overall change in position
What is distance
How much ground is covered
What is the formula for displacement
Pythagorus theorum
Velocity is
Time rate of change of displacement
Speed is...
How fast an object is moving
Velocity is...
The rate at which an object changes position
Acceleration is...
- Rate of change in velocity with respect to time ( m.s-2)
Does negative acceleration mean slowing down
No
What is angular displacement
Angle through which a body part has been rotated about a fixed axis
Angular displacement is measured in what
Radians
Degree
Revolutions
Meters
Counterclockwise movement is a positive movement
True
False
Angular velocity is
Time rate of change of angular displacement
Angular acceleration
Time rate of change of angular velocities
You must work in radians when converting from angular to linear
True
False
Projectile motion
Is a branch of linear kinematics.
 
Projectile motion only acting on two forces. What are they
Gravity
Air resistance
Airflow
Water
Does gravity effect horizontal velocity
Yes
No
John kicks a ball with an initial velocity of 23m.s-1 at an angle of 35 degrees. How far does it fly
50.5
23.7
25.25
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