FORCES AND MACHINES
by María Victoria
1. FORCES AND ITS BALANCED
1.1. Force F, is all action capable of changing the state of rest or of the movement of bodies or to produce any deformation in them.
1.2. Elements of a force
1.2.1. Unit
1.2.2. Direction
1.2.3. Sense
1.2.4. Point of application
1.2.5. Composition of forces
1.2.6. Resultant force, Fneta
1.2.6.1. Fneta = 0
1.2.6.1.1. body of balanced
2. EFFECTS OF FORCES
2.1. Deformation
2.1.1. Law's Hooke's
2.1.2. F = K · Al = K · (l - l0)
2.1.3. Diametre: instrument to measure intensity of forces
2.2. Change of state of movement
2.2.1. Dynamics
2.2.2. Law of Newton
2.2.3. First Law of Newton: inertia's law
2.2.4. Second Law of Newton: fundamental law of dynamics / F = m · a
2.2.5. Third Law of Newton: Law of action and reaction
3. SIMPLE MACHINES AND ITS FUNCTIONING
3.1. Liver
3.1.1. Law of liver: F · d = R · r
3.1.2. Classes
3.1.2.1. First grade
3.1.2.2. Second grade
3.1.2.3. Third grade
3.1.3. Pulley
3.1.3.1. Fixed
3.1.3.2. Mobile
3.1.3.3. Block