2 Biomechanical Principles Flashcards Preview

Physical Education Units 3+4 > 2 Biomechanical Principles > Flashcards

Flashcards in 2 Biomechanical Principles Deck (49):
1

Acceleration

Is the rate of velocity change experienced by an object over time.

2

Air resistance

Is the frictional force acting against a moving object.

3

Angle of release

Is the angle in respect to the horizontal plane, that an object is projected into the air.

4

Angular acceleration

Is the rate of change of angular velocity over time.

5

Angular displacement

Is the difference in degrees between the object or body parts initial and final positions.

6

Angular distance

Is the total of all angular changes that result from an object or body part angle between the starting and finishing position.

7

Angular momentum

Is a product of moment of inertia and angular velocity.

8

Angular motion

Is motion that takes place when a body moves along a circular path.

9

Angular speed

Is the angular distance covered by divided by the time taken.

10

Angular velocity

Is measured by dividing the angular displacement by the time taken, with mention of a clockwise or anticlockwise direction.

11

Balance

Is the ability to control the state of equilibrium.

12

Biomechanics

Is the study of the mechanical principles that govern human movement.

13

Curvilinear

Is movement over a curved path.

14

Displacement

Is the difference between the initial position and final position of an object.

15

Distance

Is how much ground an object covers throughout its motion.

16

Dynamic balance

Occurs when an object is at rest and is not moving.

17

Dynamic equilibrium

Is the state in which a body is in motion with a constant velocity.

18

Eccentric force

Is a force that results in angular motion or rotation.

19

Equilibrium

Refers to a state in which there is a balance of forces or influences in opposition to each other.

20

Force

Is an effect on one body that results from the interaction of a second body.

21

General motion

Is a combination of linear and angular motion.

22

Gravity

Is the cause of acceleration towards the earths’ surface.

23

Height of release

Is the height at which an object/ body is released from.

24

Inertia

Is the resistance of a body to a change in its state of motion.

25

Impulse

Is a change in momentum of an object.

26

Kinematics

Is the description of motion with reference to time, distance, and displacement.

27

Kinetics

Is the study of forces that cause motion.

28

Lever

Is a rigid structure that rotates around an axis and to which forces are applied at two other points.

29

Leverage

Describes the action or advantage of using a lever.

30

Linear

Is motion that occurs either in a straight line or a curved path.

31

Linear motion

Is motion that occurs either in a straight or linear path.

32

Mass

Is the quantity of matter found within a particular body.

33

Motion

Refers to the change in position of a body in relation to time.

34

Moment of inertia

Is the measure of a rotating objects resistance to change, particularly its resistance to beginning angular motion or rotation.

35

Momentum

Describes the quantity of motion a particular body of mass has.

36

Newton's first law of motion

States that “An object will stay at rest or continue to travel in the same direction at a constant velocity unless acted on by an unbalanced force.”

37

Newton's second law of motion

States that “Any change in the motion of a body is directly proportional to the amount of force applied and takes place in the direction in which the force is applied.”

38

Newton's third law of motion

States that “For every action, there is an equal and opposite reaction.”

39

Projectile motion

Is an object or body that is launched into the air and affected only by the forces of gravity and air resistance.

40

Rectilinear

Is movement in a straight line.

41

Sequential summation of momentum

Is the activation of body parts that are used in sequence to produce force.

42

Simultaneous summation of momentum

Is the use of multiple body parts at the same time to produce force.

43

Speed

Is the rate of motion.

44

Speed of release

Is the speed at which an object is thrown, kicked, or propelled into the air.

45

Stability

Refers to the degree to which a body resists changing its equilibrium.

46

Static balance

Occurs when an object is at rest and is not moving.

47

Static equilibrium

Is the state in which a body has zero velocity and zero acceleration.

48

Summation of momentum

Is the correct timing and sequencing of body segments and muscles through a range of motion.

49

Velocity

Is the rate of the speed an object moves its position.