Biomechanics

Question 1

What is Biomechanics?

Answer 1

Biomechanics is the study of how and

why the human body moves.

Question 2

What is simultaneous summation of forces

give two examples for each.

Answer 2

Simultaneous summation of forces is an
explosive action of all body parts at the same
time. eg. sprint start and jumping/highjump

Question 3

What is sequential summation of forces

Answer 3

Sequential summation of forces is when body
parts are moved in sequence to generate great
force. golf hit, basketball shot

Question 4

why timing is important to gain the maximum force in sequential force summation.

Answer 4

It is critical to bring in the next body part when

the previous body part reaches max acceleration to achieve the maximum force

Question 5

What is impulse?

Answer 5

Impulse is the force applied to an object and the

length of time this force is applied. for example pitching in softball

Question 6

what is the equation for momentum

Answer 6

Momentum = mass x velocity

Question 7

what is fattening the arc

Answer 7

flattening the arc is when you get a more accurate throw when the release or impact is made along any point on a
straight or direct line to the target.

Question 8

What two factors have the greatest influence on a projectiles path?

Answer 8

Velocity of release

Angle of release

Question 9

what is Velocity of release?

Answer 9

The greater the velocity of release, the greater

the greater the distance achieved.

Question 10

what is Angle of release

Answer 10

Angle of release is The theoretical optimum angle of
release to achieve maximum
distance around 45 degrees

Question 11

What is another name for velocity?

Answer 11

speed

Question 12

What is the optimal angle of release of a projectile to achieve maximum distance?

Answer 12

around 45 degrees however normally between 35 and 45

degrees.

Question 13

what are the two types of stability.

Answer 13

Static stability

Dynamic stability

Question 14

What three factors affect an objects stability?

Answer 14

Base of Support-The area bounded by the body parts in
contact with a surface
Centre of gravity-the point where an object balances
Line of gravity-A theoretical vertical line that can
be drawn from the centre of gravity to the base of support

Question 15

what is Inertia

Answer 15

Inertia is the body resistance to change in its state of motion eg. pushing a table