FORCES.

Slides:

Advertisements

Similar presentations

Mechanics: Forces and Newtons Laws Ch 4 and Ch 5 in the text…..

Advertisements

Free Body Diagrams Notes.

Chapter 4.1: Changes in Motion

Force Force is a push or pull on an object The object is called the System Force on a system in motion causes change in velocity = acceleration Force is.

You push a large crate with a force of 125 N. It accelerates at a rate of 5 m/s/s. What is the mass of the crate?

Projectile Motion A projectile is an object on which the only force acting is ______ and the direction of this force is always _____. (In real life, a.

Newton’s 2 nd Law. Force on Object Objects acted on by a net unbalanced force will accelerate in the direction of the force This means they will speed.

Forces are usually divided into two types. 1.Contact forces occur because of physical contact between objects. Examples: pushing open a door pulling.

Force Types of Forces Gravity, Mass and Weight Effects of Forces.

FORCES FORCES TYPES OF FORCES FREE BODY DIAGRAMS DETERMINING NET FORCE.

Force Diagrams And Types of Forces. Review Force = push or pull. Measured in Newtons. –1 lb = 4.45 N F net = ma a = F net / m Big force = big acceleration.

 Gravitational force – always present between two objects that have mass. Usually not felt unless one of the objects is very large. On earth 9.81 m/s.

An Introduction to Forces SPH4C. A Definition A force is a push or a pull. It is a vector quantity and is symbolized by: In the SI system, force is measured.

FORCES. What do we mean when we say force? A force = a push or pull upon an object resulting from the object’s interaction with another object. All forces.

Forces Force = a push or pull that results from an interaction between two objects Evidence of Interaction = change in: – Volume-- Sound-- Motion – Shape--

Free Body Diagrams. Weight Free Body Diagrams Net Force Present.

Forces. Log into my website, click the Introduction to Forces Notes On a note card, define the following terms: Force Newton Unbalanced force Contact.

Forces and the laws of motion. Force A bat strikes the ball with a force that causes the ball to stop and then move in the opposite direction.

“Law of Acceleration” Forces can be BALANCED or UNBALANCED Balanced forces are equal in size (magnitude) and opposite in direction UNbalanced.

Gravity is not just a good idea !

Free body diagrams.

Forces & Laws of Motion Ch 4 Physics.

Forces An Introduction.

Forces and Free Body Diagram Notes

Free Body diagrams and problem solving

Chapter 4: Forces & Newton’s Laws of Motion

Balanced and Unbalanced Forces

Free Body diagrams and problem solving

Free Body diagrams and problem solving

MOTION & ITS APPLICATIONS Everyday Forces (P )

An Introduction to Forces

Force and Motion.

What is a free-body force diagram?

Force Diagrams.

Forces and Free Body Diagrams

Fold in half longways 7 cuts to make 8 flaps

Warm Up 11/12: Friction Force

Do Now Susan’s displacement is 12 m left. First she walked 20 m left. How far right did she walk? Dan’s resultant velocity in a boat is 8 m/s right.

Or FORCE-BODY-DIAGRAMS

Or FORCE-BODY-DIAGRAMS

Newton’s Laws of Motion Chapters 2,3,6,7

Forces and Free Body Diagrams

FORCE – CAUSES CHANGES IN MOTION

Motion and Forces.

Newton’s Laws of Motion

Forces and Newton’s Laws of Motion

Forces Honors physics.

Unit 3 Forces Introduction.

Types of Forces Gravity, Mass and Weight Effects of Forces

Drawing Free Body Diagrams

Forces and Free Body Diagram Notes

Forces and Motion Review Macroscopic Forces

FORCES AND MOTION Intro #1.

Definition A force is a push or pull on an object.

Forces and Motion FINAL JEOPARDY Go To Score Card Forces Gravity

Forces and Motion FINAL JEOPARDY Go To Score Card Forces Gravity

Free Body Diagrams and Types of Forces

Forces in Equilibrium Name: _______________

(insert scary music here)

Newton’s 3rd Law and Free Body Diagrams

Types of forces And Free Body Diagrams.

The study of why objects move.

Force Diagrams.

Forces and Motion FINAL JEOPARDY Go To Score Card Forces Gravity

Forces Physics- Ms. Jeffrey.

Forces and Motion FINAL JEOPARDY Go To Score Card Forces Gravity

Presentation transcript:

FORCES

What do we mean when we say force? A force = a push or pull upon an object resulting from the object’s interaction with another object. All forces between objects can be placed into two catergories Contact forces Forces resulting from action “at a distance”

Kinds of forces Contact forces Action at a distance forces Applied force (push) Gravitational force Frictional force Electrical force Tension force (pull) Magnetic force Normal force (push) Air resistance Elastic force

Drawing Free Body Diagrams -Represent the object with a dot: -Arrows represent forces acting on the object. -The length of the arrow represents the amount of force: - The direction of the arrow shows the direction that the force is acting.

Drawing Free Body Diagrams Each force arrow in the diagram is labeled to indicate the exact type of force: Fpush ffriction FGravitational FNormal, FTension FElectrostatic Fmagnetic -Label each Force acts On object and By object

Sky Diver in free fall Ff Friction force on Diver by Air Fg Gravitational force on diver by earth

Sky Diver in parachute Ft tension force on diver by parachute harness Fg gravitational force on Diver by earth

Bull Dog pushing a skate board Bull Dog pushing a skate board. Diagram the forces acting on the skateboard.

Skateboard pushed by dog FN Normal force on skateboard by street Ff friction force on skateboard by street Fp Pushing force on skateboard by dog Fg Dog + Fg skateboard gravitational force on skate board by earth

Dog on Ramp At rest

FN Normal force on dog by ramp Dog on ramp FN Normal force on dog by ramp friction force on dog by ramp Ff Fg gravitational force on dog by earth

FT Tension force on climber by rope FN Normal force on climber by rock Forces on Rock Climber FT Tension force on climber by rope FN Normal force on climber by rock Fg Gravitational force on Climber by earth

FP Pushing force on ball by Michael Jordan Forces on Basket Ball FP Pushing force on ball by Michael Jordan Ff friction force on ball by hand Fg Gravitational force on Ball by earth

Ff friction force on ball by Forces on Foot Ball Ff friction force on ball by air resistance f Fg Gravitational force on Ball by earth

Graham needs to redo the image Graham needs to redo the image. A force diagram for a crate being dragged across the floor is shown. The sizes of each of the horizontal forces are shown in the diagram. 1. What is the size and direction of the NET force on the crate? 2. If the acceleration of the crate is 2.5 m/s/s, what is the mass of the crate?