Introduction to Force Defining Force Force Any Push

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Introduction to Force

Introduction to Force

Defining Force • Force: Any Push or Pull - Any interaction between two objects

Defining Force • Force: Any Push or Pull - Any interaction between two objects • Force is a vector quantity

Inertia • Inertia: An object’s tendency to remain in motion at constant speed in

Inertia • Inertia: An object’s tendency to remain in motion at constant speed in a straight line or to remain in a state of rest. I mass

Newton’s First Law of Motion • Newton’s First Law of Motion: An object has

Newton’s First Law of Motion • Newton’s First Law of Motion: An object has a natural tendency to remain in motion at a constant speed in a straight line or to remain at rest unless acted upon by a net force.

Net Force • Net Force: The sum of all forces acting on an object.

Net Force • Net Force: The sum of all forces acting on an object. – FNet = F – FNet = zero, then the object must have zero acceleration (i. e. at rest, moving at constant velocity) – FNet zero, Object must be accelerating

Force Diagram • Force Diagram: A diagram that displays all the forces acting on

Force Diagram • Force Diagram: A diagram that displays all the forces acting on a single object. (also known as a free-body diagram) – Represent the object by a single point – Draw force vectors such that they originate from the point

Types of Forces – Gravitational Force: A force of attraction between any two masses.

Types of Forces – Gravitational Force: A force of attraction between any two masses. Fg • Even though this force acts between all objects with mass, it is commonly observed between planets and terrestrial objects.

Types of Forces • Normal Force: A contact force that acts at a right

Types of Forces • Normal Force: A contact force that acts at a right angle to the surfaces of two objects in contact. FN (Normal right angle) – Contact forces are attributed to the electromagnetic force between charged particles at the microscopic level.

Types of Force • Frictional Force: A contact force that acts parallel to the

Types of Force • Frictional Force: A contact force that acts parallel to the surfaces of two objects in contact, so as to oppose the relative motion of the two surfaces/objects. – Types of Friction • Static- Opposes the motion of two surfaces stationary relative to each other. Fs • Kinetic- Opposes the motion of two surfaces moving relative to each other. Fk

Types of Force • Tension Force: A contact force applied along the length of

Types of Force • Tension Force: A contact force applied along the length of a narrow object. (ex. string, rope, cable, rod, arm, etc. ) FT • The tension force is the same at any point along the continuous length of the object. – The tension force acts in both directions along its length.

Types of Forces • Air Resistance: The contact force between air molecules and objects

Types of Forces • Air Resistance: The contact force between air molecules and objects in motion relative to each other. FR – FR α v

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Force Force Any push or pull exerted onForce Force Any push or pull exerted on
Fluid Forces Force Force any push or pullFluid Forces Force Force any push or pull
Force Notes Force A force is a pushForce Notes Force A force is a push
Force and Net Force Force is a pushForce and Net Force Force is a push
Force and Gravity Force Force is a pushForce and Gravity Force Force is a push
Defining Zone Assignments Concept Defining Zone Assignments DefiningDefining Zone Assignments Concept Defining Zone Assignments Defining
Unit 6 DEFINING AND NON DEFINING DEFINING RELATIVEUnit 6 DEFINING AND NON DEFINING DEFINING RELATIVE
Defining Inventory Pairs Concept Defining Inventory Pairs DefiningDefining Inventory Pairs Concept Defining Inventory Pairs Defining
Defining Allocations Concept Defining Allocations Defining Allocations StepDefining Allocations Concept Defining Allocations Defining Allocations Step