Biomechanical movement

Question 1

Acceleration

Answer 1

The positive change in velocity of an object

Question 2

Air resistance

Answer 2

An opposing force that exerts itself upon a body moving through the air

Question 3

Centre of mass

Answer 3

The point at which the total body mass is concentrated

Question 4

Effort arm

Answer 4

The distance from the effort to the fulcrum

Question 5

Effort

Answer 5

The force that is needed to move the load

Question 6

Fulcrum

Answer 6

Where the rotation or movement of the lever takes place

Question 7

Inertia

Answer 7

The resistance of an object to change its current state of motion

Question 8

Load arm

Answer 8

The distance from the load to the fulcrum

Question 9

Load

Answer 9

Any weight that needs to be moved in a lever system

Question 10

Momentum

Answer 10

The quantity of motion that is taking place in a moving object

Question 11

Newton’s first law

Answer 11

An object stays in a constant state of motion unless acted upon by an external force

Question 12

Newton’s second law

Answer 12

An object will accelerate in the same direction as the force applied upon it, and the amount of acceleration is directly proportional to this force

Question 13

Newton’s third law

Answer 13

For every action there is an equal and opposite reaction

Question 14

Reaction

Answer 14

The equal and opposite force acting in the opposite direction to the force being exerted

Question 15

Stability

Answer 15

An object’s resistance to changing position

Question 16

Weight

Answer 16

The force of gravity acting on an object

Question 17

Angular momentum

Answer 17

The amount of angular motion of an object.

Question 18

Angular motion

Answer 18

The motion of an object around a fixed axis.

Question 19

Angular velocity

Answer 19

The rate of angular displacement of an object.

Question 20

Angular displacement

Answer 20

The difference between the start and final position of a rotating object.

Question 21

Angular acceleration

Answer 21

The change in angular velocity over time.

Question 22

Bernoulli’s principle

Answer 22

The effect that the surrounding flow and pressure of air have on a projectile.

Question 23

Displacement

Answer 23

The total change in an object’s position, in respect to its start position.

Question 24

Distance

Answer 24

The total length of the space between a start and end point.

Question 25

Gravity

Answer 25

The force that attracts any object with mass towards the Earth.

Question 26

Linear motion

Answer 26

The centre of mass of an object moving along a straight line.

Question 27

Mass

Answer 27

The amount of matter of an object.

Question 28

Moment of inertia

Answer 28

The resistance of an object to change its current state of rotational motion.

Question 29

Non-parabolic flight path

Answer 29

An asymmetrical flight path.

Question 30

Parabolic flight path

Answer 30

A symmetrical flight path.

Question 31

Projectile

Answer 31

An object which is propelled forward through the air by an external force.

Question 32

Scalar quantities

Answer 32

Measurements that are only concerned with size or amount of something.

Question 33

Speed

Answer 33

The rate at which an object travels a specific distance.

Question 34

Vector quantities

Answer 34

Measurements that attribute a direction and a magnitude.

Question 35

Velocity

Answer 35

The rate at which an object undergoes displacement

Question 36

Weight

Answer 36

The force that gravity applies to an object.