2 Biomechanical Principles

Question 1

Acceleration

Answer 1

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

Question 2

Air resistance

Answer 2

Is the frictional force acting against a moving object.

Question 3

Angle of release

Answer 3

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

Question 4

Angular acceleration

Answer 4

Is the rate of change of angular velocity over time.

Question 5

Angular displacement

Answer 5

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

Question 6

Angular distance

Answer 6

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

Question 7

Angular momentum

Answer 7

Is a product of moment of inertia and angular velocity.

Question 8

Angular motion

Answer 8

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

Question 9

Angular speed

Answer 9

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

Question 10

Angular velocity

Answer 10

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

Question 11

Balance

Answer 11

Is the ability to control the state of equilibrium.

Question 12

Biomechanics

Answer 12

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

Question 13

Curvilinear

Answer 13

Is movement over a curved path.

Question 14

Displacement

Answer 14

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

Question 15

Distance

Answer 15

Is how much ground an object covers throughout its motion.

Question 16

Dynamic balance

Answer 16

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

Question 17

Dynamic equilibrium

Answer 17

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

Question 18

Eccentric force

Answer 18

Is a force that results in angular motion or rotation.

Question 19

Equilibrium

Answer 19

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

Question 20

Force

Answer 20

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

Question 21

General motion

Answer 21

Is a combination of linear and angular motion.

Question 22

Gravity

Answer 22

Is the cause of acceleration towards the earths’ surface.

Question 23

Height of release

Answer 23

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

Question 24

Inertia

Answer 24

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

Question 25

Impulse

Answer 25

Is a change in momentum of an object.

Question 26

Kinematics

Answer 26

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

Question 27

Kinetics

Answer 27

Is the study of forces that cause motion.

Question 28

Lever

Answer 28

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

Question 29

Leverage

Answer 29

Describes the action or advantage of using a lever.

Question 30

Linear

Answer 30

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

Question 31

Linear motion

Answer 31

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

Question 32

Mass

Answer 32

Is the quantity of matter found within a particular body.

Question 33

Motion

Answer 33

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

Question 34

Moment of inertia

Answer 34

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

Question 35

Momentum

Answer 35

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

Question 36

Newton’s first law of motion

Answer 36

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.”

Question 37

Newton’s second law of motion

Answer 37

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.”

Question 38

Newton’s third law of motion

Answer 38

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

Question 39

Projectile motion

Answer 39

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

Question 40

Rectilinear

Answer 40

Is movement in a straight line.

Question 41

Sequential summation of momentum

Answer 41

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

Question 42

Simultaneous summation of momentum

Answer 42

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

Question 43

Speed

Answer 43

Is the rate of motion.

Question 44

Speed of release

Answer 44

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

Question 45

Stability

Answer 45

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

Question 46

Static balance

Answer 46

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

Question 47

Static equilibrium

Answer 47

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

Question 48

Summation of momentum

Answer 48

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

Question 49

Velocity

Answer 49

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