1. Newton’s Laws of Motion
Conceptual Physics
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2. Beginning Terms
Force(F) – a push or a pull, measured in Newtons (N), forces are vectors
Friction(f) – the force between two objects that are in contact
Coefficient of friction(μ) – a number that shows how big the force of friction will be between two objects
Inertia – the property of matter that tends to resist a change in its motion
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3. More Terms
Mass(m) – the amount of matter in an object, measured in kilograms(kg)
Weight(w) – the amount of force gravity exerts on an object’s mass, measured in Newton’s [w=mg]
Net Force – the total force acting on an object, it is an object’s net force that causes a change in its motion
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4. Even More Terms
Equilibrium – when an object’s net force is zero, it’ll be sitting still or have constant velocity
Normal Force(FN) – the force perpendicular to the surface an object sits on , also called the “support force”
Pressure(P) – the amount of force per unit area, measured in Pascals (Pa), formula is P=F/A where A is area
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5. Yes, Even More Terms
Terminal Velocity – the maximum velocity a free falling object reaches when its weight finally equals its air resistance
Action/Reaction Pair – a pair of equal and opposite forces acting on the same object
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6. Newton’s First Law of Motion
Objects at rest tend to remain at rest and objects in motion tend to remain in motion unless acted upon by an outside force.
This is also called the Law of Inertia since it is an object’s inertia that causes this law to happen.
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7. Newton’s Second Law of Motion
The acceleration of an object is directly proportional to the force acting upon the object, or F=ma.
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8. Newton’s Third Law of Motion
For every action there is an equal and opposite reaction.
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