bio-mechanical principles

Question 1

name the 6 bio-mechanical principles?

Answer 1

1. centre of gravity
2. base of support
3. balance
4. transfer of weight
5. motion
6. force production

Question 2

explain what the centre of gravity is?

Answer 2

the point where an objects weight is evenly distributed

Question 2

explain what the base of support is?

Answer 2

area within the boundary of the body, the areas in contact with the floor

Question 2

where is the line of gravity theoretically drawn?

Answer 2

drawn from the centre of gravity to the floor

Question 3

explain what balance is?

Answer 3

balance is achieved when the body is at a state of equilibrium

Question 4

how is balance achieved?

Answer 4

if your line of gravity is within your base of support.

Question 5

name 2 ways that make it easier to balance?

Answer 5

1. base of support is larger
2. line of gravity is shorter

Question 6

explain transfer of weight?

Answer 6

transfer of weight occurs when a dancer moves their weight from one body part to another

Question 7

what are the 2 types of weight transfer?

Answer 7

1. full weight transfer
2. partial weight transfer

Question 8

explain a full weight transfer?

Answer 8

when the weight is transferred to the other body part, the og body part can be lifted off the floor
e.g a handstand (feet lifted off the floor)

Question 9

explain a partial weight transfer?

Answer 9

original body part maintains on the floor
e.g a bend back (both hands and feet remain on the floor)

Question 10

explain motion?

Answer 10

the continual change in position of the body relative to a particular point

Question 11

what are the 4 types of motion?

Answer 11

1.linear
2. angular motion
3. general motion
4. projectile motion

Question 11

explain linear motion?

Answer 11

when the whole body travels the same distance in the same direction
e.g a hop

Question 12

explain angular motion?

Answer 12

rotates around a fixed point called the axis of rotation
e.g pirouette

Question 13

explain general motion?

Answer 13

is both linear and angular motion at the same time
e.g chaines turns

Question 14

explain projectile motion?

Answer 14

involves the body moving through the air
e.g a leap

Question 15

in projectile motion what is velocity of release?

Answer 15

the speed reached at the moment of elevation

Question 16

in projectile motion what is the angle of projection?

Answer 16

trying to find the highest point

Question 17

what is newtons first law?

Answer 17

law of inhertia, body will remain at rest until external force acts upon it

Question 18

what is newtons second law?

Answer 18

law 2: force = mass times acceleration

Question 19

newton 3 law