Paper 2: Biomechanical Movements Flashcards
What is acceleration?
The positive change in velocity of an object
What is air resistance?
An opposing force that exerts itself upon an object moving through the air
What is angular momentum?
The amount of angular motion of an object
What is angular motion?
The motion of an object around a fixed axis
Also known as ‘rotational motion’
Follows a circular path, with centre of mass remaining constant
What is angular velocity?
The rate of angular displacement of an object
What is angular displacement?
The difference between the start and final position of a rotating object
What is angular acceleration?
The change in angular velocity over time
What is Bernoulli’s principle?
The effect that the surrounding flow and pressure of air have on a projectile
What is displacement?
The total change in an object’s position, in respect to its start position
What is distance?
The total length of the space between a start and end point.
What is gravity?
The force that attracts any object with mass towards the Earth
What is linear motion?
The centre of mass of an object moving along a straight line
What is mass?
The amount of matter of an object
What is the moment of inertia?
The resistance of an object to change its current state of rotational motion
What is momentum?
The amount of motion of an object
What is a non-parabolic flight path?
An asymmetrical flight path
What is a parabolic flight path?
A symmetrical flight path
What is a projectile?
An object which is propelled forward through air by an external force
What is are scalar quantities?
Measurements that are only concerned with size or amount of something
What is speed?
The rate at which an object travels a specified distance
What are vector quantities?
Measurements that attribute a direction and a magnitude
What is velocity?
The rate at which an object undergoes displacement
What is weight?
The force that gravity applies to an object
What is net force?
The sum of all forces acting on an object
What is the calculation of distance?
distance = speed x time
What is the calculation of mass?
Mass = force/acceleration due to gravity
What is the calculation of weight?
Weight = mass x 9.81 m.s-2
(acceleration due to gravity)
What is the calculation of momentum?
Momentum = mass x velocity
What is the calculation for displacement?
Displacement = velocity x time
What is the calculation for speed?
Speed = distance/time
What is the calculation for velocity?
Velocity = displacement/time
What is the calculation for acceleration or deceleration?
Acceleration or deceleration = change in velocity/time
What is the calculation for net force?
Force A + Force B + Force C…