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FORCE Mr. Skirbst Physical Science Topic 04
What is force?
- a push or a pull on an object
What is force? Forces can enhance/cancel each other - a push or a pull on an object
What is force? Forces can enhance/cancel each other Unbalanced forces = movement - a push or a pull on an object
What is friction?
- A force acting in the opposite direction of a moving object
NEWTON’s 3 LAWS of MOTION
1.INERTIA (Latin for “lazy”)
NEWTON’s 3 LAWS of MOTION 1.INERTIA (Latin for “lazy”) - objects at rest (or in motion) remain that way until acted upon by a force
NEWTON’s 3 LAWS of MOTION 2.F = (m) (a)
NEWTON’s 3 LAWS of MOTION 2.F = (m) (a) - force = mass x acceleration - “The harder you push, the faster you go” - “The bigger they are, the harder they fall.”
NEWTON’s 3 LAWS of MOTION 3.Action - Reaction
NEWTON’s 3 LAWS of MOTION 3.Action - Reaction - for every action, there is an equal and opposite reaction
NEWTON’s LAW of UNIVERSAL GRAVITATION
- ALL objects attract each other by the force of gravity
NEWTON’s LAW of UNIVERSAL GRAVITATION - ALL objects attract each other by the force of gravity - GRAVITY – force of attraction between objects with mass
NEWTON’s LAW of UNIVERSAL GRAVITATION - WEIGHT – measures force of gravity on an object equation: w = (m)(g) Where g = acceleration due to gravity
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Today's objective I can explain what a force is, how forces are measured, and how to calculate net force.
Newton’s First Law of Motion. First we need to define the word FORCE: The cause of motion (what causes objects to move) Two types of forces –Pushes –Pulls.
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