Forces, Mechanic, Biomechanics

Question 1

Newtons First Law

Answer 1

Every object in a state of uniform motion tends to remain in that state of motion unless and external force is applied to it

Question 2

Newtons Second Law

Answer 2

Force = Mass x Acceleration

Question 3

Newtons Third Law

Answer 3

For every action there is an equal and opposite reaction

Question 4

Friction

Answer 4

When two objects that are in contact are moving over each other, friction is the force that resists that movement
Fricton = Force x Coefficent of Friction

Question 5

Centre of Gravity

Answer 5

The equivalent point within the body at which the whole body weight acts

Question 6

Base of Support

Answer 6

Area beneath an object/person that includes every point of contact that the object/person makes within the supporting surface

Question 7

First Order Lever

Answer 7

Fulcrum is in the middle
Force on both ends pushing down

Question 8

Second Order Lever

Answer 8

Fulcrum on one end
Middle force pushing down
Side force pushing up

Question 9

Third Order Lever

Answer 9

Fulcrum on one end
Middle force pushing up
Side force pushing down

Question 10

Velocity

Answer 10

Speed in a constant direction (vector)

Question 11

What are the Ambulations?

Answer 11

Ability to walk without the need for assistance
Household
Limited Community
Full Community

Question 12

Weight

Answer 12

Combined effect of mass and the effect of gravity (vector)

Question 13

What did hip protecters do?

Answer 13

Reduce force transmitted through the femoral neck