The gravitational force on a body

Slides:

Advertisements

Similar presentations

Forces – Chapter 4.

Advertisements

Applying Newton’s Laws

A Level Mechanics Bodies in Equilibrium. Since the method of resolving forces can be applied to any of these problems, we’ll use it in the following examples.

Dr. Steve Peterson Physics 1025F Mechanics NEWTON’S LAWS Dr. Steve Peterson

Applications of Newton’s Laws

Goal: To learn about Forces

Newton’s Laws.

T082 Q1. A uniform horizontal beam of length 6

Forces and The Laws of Motion

Chapter everyday forces.

FORCES. A force is an influence on a system or object which, acting alone, will cause the motion of the system or object to change. If a system or object.

Chapter 4 Preview Objectives Force Force Diagrams

Unit 2 1D Vectors & Newton’s Laws of Motion. A. Vectors and Scalars.

NEWTON’S SECOND LAW.

Types of forces. Forces acting on an object All forces are measured Newtons. Not all forces are present in every situation. Identify the forces that apply.

Forces and the Laws of Motion Chapter Changes in Motion Objectives  Describe how force affects the motion of an object  Interpret and construct.

What is the normal force for a 500 kg object resting on a horizontal surface if a massless rope with a tension of 150 N is acting at a 45 o angle to the.

AIM: What are Newton’s three laws, and how do they describe how an object behaves? Do Now: - Draw a Free Body Diagram for the block below if 1. it is at.

Chapter 4 Dynamics: Newton’s Laws of Motion

1© Manhattan Press (H.K.) Ltd. 1.7 Stability 2 © Manhattan Press (H.K.) Ltd. Stability 1.7 Stability (SB p. 75) What makes objects more stable than others?

Multiple choice Have a go at the two multiple choice questions at the top.

Forces Lesson Objective: Understand the types of Forces that exist and Newton’s third law.

Unit 2 1D Vectors & Newton’s Laws of Motion. A. Vectors and Scalars.

Chapter 5 Outline Applying Newton’s Laws Statics Dynamics Friction Kinetic friction Static friction Fluid resistance Circular Motion Fundamental forces.

Section 4–4: Everyday Forces Coach Kelsoe Physics Pages 135–143.

Scope of the presentation Scope of this presentation is to learn below engineering concepts : Gravity Weight Mass Force Note : All the above engineering.

March 24, 2014 Homework: Complete Calculating Net Force sheet and Section Assessment Question 1C on pg. 50 in textbook.- Complete question on the back.

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.

Lesson 4.4 Everyday Forces Essential Question: What are some of the everyday forces?

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.

AP Chapter 4. Force - a push or pull Contact Force – Noncontact Force – mass.

Physics Chapter 4 Forces and the Laws of Motion. §A force is defined as a push or pull exerted on an object. §Forces can cause objects to speed up, slow.

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.

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.

Forces. Push or pull between TWO masses Forces Push or pull between TWO masses Measured in Newtons (N) –What is a Newton?

Torque & Equilibrium AP Physics.

I. Newton’s Laws II. Forces III. Free-Body Diagrams Chapter 4: Newton’s Laws and Forces.

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

Friction Lecture 8 Friction: is defined as a force of resistance acting on a body which prevents or retards slipping of the body relative to a second.

Forces in Nature.

Applications of Newton’s Laws of Motion

What is a Force? the influence that produces a change in a physical quantity; "force equals mass times acceleration"

Friction The force which opposes the movement or the tendency of movement is called Frictional force or simply friction. It is due to the resistance to.

A Closer Look at Forces How do forces affect us?.

Objectives Distinguish between force and net force.

To continue our work on resolving forces

FORCES AND FREE BODY DIAGRAMS

Forces An Introduction.

Static Equilibrium and Torque

Normal Force and Friction Force

Force and Motion A force is something that is capable of changing an object’s state of motion, that is, changing its velocity.

An Introduction to Forces

Statics of rigid bodies

Objectives Chapter 4 Section 4 Everyday Forces

4-6 Weight – the Force of Gravity; and the Normal Force

Student misconceptions

Chapter 4 Newton’s Laws.

Dynamics: Newton’s Laws of Motion (Ch. 12)

Force Review and Universal Law of Gravitation

PHYS 1443 – Section 003 Lecture #17

Force Problems.

Warm-up What forces were acting on your rocket when it was moving up into the air? What forces were acting on your rocket when it was coming back down.

Free Body Diagrams and Types of Forces

Statics of Rigid Bodies

Classifying forces.

Forces & Newton’s Laws of Motion

Warm UP What is the difference between mass and weight?

Presentation transcript:

Force on an object due to a difference in pressure when immersed in a fluid The gravitational force on a body Force resisting the parallel movement of two surfaces in contact The pulling force exerted by a string, cable, chain or similar object. Tension Friction Upthrust Weight

The Four Fundamental Forces: Gravitational Electromagnetic Strong Weak

Slopes 30/07/2018 LO: To become confident in resolving vectors in respect to a slope To use this skill to solve slope problems

Forces in static systems: Friction has a static component which acts parallel to two surfaces and causes them to grip each other The normal reaction (or contact force) always acts at perpendicular (right angles) to the surface producing it Weight acts vertically downwards from the centre of gravity

Slopes! Weight of the book is 8N Desk is tilted at an angle of 15° Find the magnitudes of friction and normal reaction for the book at rest on the desk? Weight of the book is 8N Desk is tilted at an angle of 15°

Sidney is very disappointed when his sledge gets stuck half way down the hill! If the hill is sloped at an angle of 12° and the combined weight of Sidney and his sledge is 400N, calculate the magnitude of the normal reaction and frictional forces.

Complete the Slope Problems Sheet Then: Vectors ‘Worksheet’ Qu’s 1-6 & 9

Homework Due Mon 4th Oct Static stick men sheet

Normal reaction force always acts at 90° to a surface. A bit more on reaction… Normal reaction force always acts at 90° to a surface. If the surface is smooth this is easy! R If the surface is rough however, the direction of the reaction depends on where it is on the surface

Ladders For a ladder to stand against a wall , the lines of action of the forces must meet at a point This can’t happen when you have a smooth wall and a smooth floor When there is one smooth and one rough surface, there is one position in which the ladder will stand

Sidney decides to do some painting! He places his uniform ladder (10m long and weighing 200N against a smooth wall at an angle of 60°) Find the reactions of the wall and the ground