Types of Forces. Four Main Forces in Universe Gravity F g. Electromagnetic EM Strong Nuclear Strong or Nuclear Weak Nuclear Weak All Forces fall into.

Slides:

Advertisements

Similar presentations

Forces – Chapter 4.

Advertisements

FORCES and Newton’s 1 st Law. A force is a push or pull on an object which can cause the motion of the object to change. Forces cause accelerations! If.

Force Defined as a push or pull that one body exerts on another

Forces and Newton’s 3 Laws of Motion Robert Strawn Compiled 10/16/11.

Forces and Freebody Diagram Notes

Forces Acting on an Object Unit 4 Force and Motion.

Chapter 4.1: Changes in Motion

GRAVITY (also known as Weight) F grav The force of gravity is the force with which the earth, moon, or other massively large object attracts another object.

Forces Force is the cause of acceleration. It is defined as a push or a pull.

Forces and Free Body Diagrams 11/6/13. Bellwork What book did Newton write in 1687? What book did Newton write in 1687? The Principia (Mathematical Principles.

Conceptual Physics Chapter Six Notes:

FORCES. Force is a vector quantity and is measured in newtons (1N) There are different type of forces: – weight – friction force – normal reaction force.

Forces and Free Body Diagrams 12/3/14. Contact Forces Applied Force Applied Force Surface Force Surface Force Friction Force Friction Force Air Resistance.

Forces and The Laws of Motion

Free Body Diagram. Used to show all net forces acting on an object What can an object with a net force of zero be doing?

Types of Forces Contact Forces Forces at a distance.

1. What is a Force?  A force is a push or pull on an object by another object and measured in newton (N).  Forces are vectors 2 Force is a push Force.

Force and Its Representation

Forces and Free Body Diagrams

Force A push or pull exerted on an object..

Review Motion and Forces Test. Starter Q 12-5Forces Two different forces interact on a cart, one is 8 N and the other is 6 N. What is the minimum and.

Newton’s Laws of Motion 1-Courses/current-courses/08sr-newton.htm system.org/~history/PictDisplay/Galileo.html.

Chapter 4 Forces and the Laws of Motion. Newton’s First Law An object at rest remains at rest, and an object in motion continues in motion with constant.

Newton’s Laws of Motion What are forces? How can diagrams be used to depict and analyze the forces acting on an object? What are the effects of net force.

In order to change the motion Of an object, you must apply A force to it.

Chapter 4 Forces and Newton’s Laws of Motion Why things move the way the do.

CHAPTER 4 FORCES IN 1-D FORCE Force is anything which causes a body to start moving when it is at rest, or stop when it is moving, or deflect once it.

Forces and Free Body Diagrams. Common Forces Gravity- attractive force between two objects that have mass. AKA Weight To calculate Weight: –Force of Gravity.

Types of Forces.

Forces & Motion “Trust the Force Luke” Forces Forces.

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

Chapter 4 Force and Net Force. Warm-Up/Journal  Warm-up : Define in your own words, balanced and unbalanced  Journal : This weekend I…

 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.

Part 2 - Forces.

Instructions for using this template. Remember this is Jeopardy, so where I have written “Answer” this is the prompt the students will see, and where.

Forces and the Laws of Motion Chapter 4. Forces and the Laws of Motion 4.1 Changes in Motion –Forces are pushes or pullss can cause acceleration. are.

Physics Section 4.4 Describe various types of forces Weight is a measure of the gravitational force exerted on an object. It depends upon the objects.

FORCES AND FREE BODY DIAGRAMS  011/mar/04/brian-cox-forces-nature-video

FORCES Chapter 5. Mechanics The study of Motion Isaac Newton, 1600’s The father of mechanics.

FORCES. FORCE A push or pull acting on an object typically measured in Newtons (kgm/s 2 ) is a vector (Has a magnitude And direction)vector can be combined.

1 st Law Law of Inertia.  An object at rest tends to stay at rest and an object in motion tends to stay in motion with a constant velocity and unless.

Forces and the Laws of MotionSection 1 Preview Section 1 Changes in MotionChanges in Motion Section 2 Newton's First LawNewton's First Law Section 3 Newton's.

Forces. What is a Force? A force is a push or pull acting on an object that changes the motion of the object.

Physics Section 4.4 Describe various types of forces Weight is a measure of the gravitational force exerted on an object. It depends upon the objects.

Lesson 2 Force, Its Representation, and Mass vs. Weight Newton’s Laws.

Concept of a Force. What is a Force? Usually think of a force as a push or pull. A force can deform, stretch, rotate, or compress a body. It makes an.

Air Resistance and Free Body Diagrams

Today: (Ch. 2 & 3) HDevelop the equations to describe motion  Look at some situations where we can apply them.

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

Or Trust in the Force Luke/Ani

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

A force is a push or a pull.

Forces An Introduction.

Sign in Handouts Phones up

CHAPTER 4 FORCES IN 1-D.

Ch 4 Forces in One Dimension

Chapter Menu Lesson 1: Combining Forces Lesson 2: Types of Force

Describing Motion Newton’s Laws.

WHAT IS FORCE. A force is a push or a pull

Force A push or pull exerted on an object..

Bell Ringer Socrative Quiz- Newton’s Laws Room: LEE346

Free Body Diagrams and Types of Forces

Classifying forces.

Newton’s 3rd Law and Free Body Diagrams

Presentation transcript:

Types of Forces

Four Main Forces in Universe Gravity F g. Electromagnetic EM Strong Nuclear Strong or Nuclear Weak Nuclear Weak All Forces fall into one of the above categories.

Common Forces Weight F g = mg gravity interaction with mass. Weight depends on gravity, Mass does not. What is mass? Amount of matter in object.

Normal Force (reaction force) – perpendicular to the surfaces in contact. Opposite to weight on horizontal surface. F n = -W

What if you’re leaning on a wall. Where is the normal force?

Where is it now?

Sliding Friction – force acts at contact between surfaces. Direction of friction opposes velocity or attempted velocity. F f =  F n  is constant Which way is friction?

Which way is the book moving? Right Left The box is not moving.

Tension – transmitted through string, rope, or wire by forces at each end.

Air Resistance – air friction. Big reason for bad fuel economy in cars.

Spring or Elastic Force – Force applied by stretched or compressed spring described by Hooke’s Law.

Magnetic Force

Electrical

Force is a vector quantity. It has direction. Acceleration –  v – is always in the same direction as the net force!!

Free Body Diagrams Diagrams to show relative magnitude & direction of all vector forces acting on a body. Sizes of arrows show magnitude of force. Arrowhead shows direction of forces.

What can you say for sure about the object in the free body diagram below? 1. It is at rest. 2. It is in motion to the left. 3. It is in motion to the right 4. Not enough information to know.

Balanced & Unbalanced Forces

An unbalanced force is a resultant or net force. What is the F net ? What can you say about the motion? 12 N 4 N F net = - 8 N or 8 N left The object shows Acceleration left.

A bird flies with a constant velocity to the left at a constant altitude. What is the free body diagram?

F bird up F grav F bird left F air fric V = 0 up so no F net up. F bird cancels Fgrav. Const v horiz. So no F net left. Friction balanced by force of bird left.

Assignment Handout “Free Body Diagrams”

Number One

Number Two

Number Three

Number Four