force : push or pull newton: unit to measure force net force: combination of force unbalance force:...

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NATURE OF FORCES Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move

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Page 1: Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move

NATURE OF FORCES

Force : Push or pullNewton: unit to measure forceNet force: combination of force Unbalance force: object start movingBalance force: object doesn`t move

Page 2: Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move

FRICTION AND GRAVITY

Friction : They rub against each otherGravity: force that pulls objects downMass: amount of matter in an objectWeight: force according to gravityAir resistance: opposite force against gravity

Page 3: Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move

NEWTON`S LAW

First Newton`s law: Any object at rest remain at rest and any object that moves will keep moving until a force act over itSecond Newton`s law: acceleration depends on the mass and the applied forceInertia : resist to a motion`s changeThird Newton`s law: If one force exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.

Page 4: Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move

PRESSURE

Pressure: relationship between force over an specific area.Pascal: unit to measure pressure

Page 5: Force : Push or pull Newton: unit to measure force Net force: combination of force Unbalance force: object start moving Balance force: object doesn`t move

BERNOULLI`S LAWBernoulli`s: states that the faster a fluid moves , the less pressure the fluid exerts.