S. Coghlan Physics 12. S. Coghlan This concept map is designed to help you; Understand how the various different parts of forces and equilibrium link.

Slides:



Advertisements
Similar presentations
Torque, Equilibrium, and Stability
Advertisements

30 April 2015 Unit 5: Turning Effect of Forces Background: Walking the tightrope pg 82 Discover PHYSICS for GCE ‘O’ Level.
Equilibrium.
PHYS 218 sec Review Chap. 11 Equilibrium and Elasticity.
Torque Again.
(W= weight!) W = m  g The main force acting on the body is the gravitational force! Gravitational force W applies at the center of gravity CG of the.
Centre of Gravity and Stability. CENTRE OF GRAVITY  The centre of gravity of a body is the point about which its weight can be considered to act.  In.
3) Calculate the spanner’s turning effect in newton metres. (2 marks)
Prepared By: Shakil Raiman.  The turning effect of a force about a certain point is called moment (or torque)  The moment can be calculate using the.
Torque and Equilibrium Lecture 8 Pre-reading : KJF §8.1 and 8.2.
Chapter 8 Rotational Equilibrium and Rotational Dynamics.
8-4 Torque The cause of circular motion is often torque. Torque is the product of the component of force perpendicular to the lever arm or moment arm.
 Point at which all other points on the object rotate around  During motion the CM will move in the same path that a simple particle would move if subjected.
Objectives  Know the definition of torque  Know that torque is directly proportional to the magnitude of the force and the perpendicular distance.
Chapter 11 Equilibrium and Elasticity. Equilibrium.
S. Coghlan Physics 12 S. Coghlan This concept map is designed to help you; Understand how the various different parts of sound link together. Study the.
S. Coghlan Physics 12 S. Coghlan This concept map is designed to help you; Understand how the various different parts of electric power link together.
Physics Notes Ch 9 Statics Statics – The study of forces in equilibrium. The net force and the net torque on an object (or on a system) are zero. The.
Learning Objectives : 1.To know the names of some special case moments.... (Couple/Torque) 2.To understand stable/unstable equilibrium, tilting, & toppling.
5.1.4 Force and moments You should be able to: (a) understand that the weight of a body may be taken as acting at a single point known as its centre of.
Rotational Motion. Deg, Rad, Grad There are 360 degrees in one rotation of a circe. There are 2π radians in one rotation of a circle. There are 400 gradians.
Centre of Gravity & Moments Stability Two factors determine the stability of an object – Centre of Gravity – Base If the Centre of Gravity of an object.
Kinesiology Unit 8 1. Definition of Balance: An individual’s ability to control stability 2.
KEY KNOWLEDGEKEY SKILLS  The different parts that make up levers including the axis, force and resistance arms and how they relate to movements  How.
Copyright © 2007 Pearson Education, Inc., publishing as Pearson Addison-Wesley PowerPoint ® Lecture prepared by Richard Wolfson 12 Static Equilibrium Richard.
Chapter 5: Turning effect of forces
Motion and Forces in 2 and 3 Dimensions Torque and Rotation.
S. Coghlan Physics 12 S. Coghlan This concept map is designed to help you; Understand how the various different parts of movement link together. Study.
Center of Mass, Moment of Inertia, & Rotational Equilibrium Rotation Physics Mr. McCallister.
What forces act upon the meter stick? Where should the force of gravity be considered to act? Center of Gravity – the single point on a body where the.
Turning forces and Centre of Gravity
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?
Chapter 12 Equilibrium and elasticity. Equilibrium We already introduced the concept of equilibrium in Chapter 8: dU(x)/dx = 0 More general definition.
Torque DO NOW: Serway Read Pages 306 – 308 Do Example page 309 Define and Utilize : Moment.
Hjj Ship Stability RONALD M H Ronald M H.
Describe moment of force or torque as moment = force × perpendicular distance from pivot to the line of action of force;
The Ball is in Equilibrium.... What do we always know about forces in Equilibrium?
Chapter 10 Center of Gravity Center of Gravity Center of Gravity – (CG) the point at the center of its weight distribution.
Lots of fun! Win valuable prizes!. 1. Two people sit on a balanced seesaw. When one person leans toward the center of the seesaw, that person's end of.
Physics 11 S.Coghlan This concept map is designed to help you; Understand how the various different parts of nuclear technology link together. Study.
Where is the center or mass of a wrench?  Center-of-Mass A mechanical system moves as if all of its mass were concentrated at this point A very special.
1 Physics 11 S. Coghlan 2 This concept map is designed to help you; Understand how the various different parts of movement link together. Study the whole.
Center of Mass Definition “The center of mass (or mass center) is the mean location of all the mass in a system” Marked with:
Chapter 12 Equilibrium and elasticity. Equilibrium We already introduced the concept of equilibrium in Chapter 8: dU(x)/dx = 0 More general definition.
What have you learnt?  moment of a force = F x d  The Principle of Moments states that when a body is in equilibrium, the sum of clockwise moments about.
Equilibrium of Floating Bodies
Chapter 12 Static Equilibrium. Equilibrium We already introduced the concept of equilibrium in Chapter 7: dU(x)/dx = 0 More general definition of equilibrium:
Torque 10.3 (pages 490 – 502). Friday Fun… Unravelled What did you learn? What does it mean to balance? –For an object to balance, you must use the centre.
CHAPTER 9 DAY SOLVING PROBLEMS WITH STATICS *See Conceptual Example 9-5 p245. See Problem Solving Steps p245. See Example 9-6 Balancing a see-saw.
Torque & Rotational Motion. Center of Mass Average location of an object’s mass.
Principle of moments. Turning forces Students need to be introduced to the idea of turning forces, by giving examples of levers and leverage. The idea.
Physics 12.
Forces Glossary The centre of gravity of an object is the point at which the weight of the object can be said to act. © Mike Benn, Graham George 2016.
Chapter 6 Equilibrium.
Ch 8 : Rotational Motion .
Rotational Kinetic Energy
Rotational Equilibrium
11.1 Torque To make an object turn or rotate, apply a torque.
PHY131H1F - Class 19 Today, Chapter 12:
Center of Gravity.

Rotational Inertia 8.2.
Moment of a Force.
Turning Forces and Centre of Gravity
Moment of a Force.
Centre of Gravity Definition Finding the centre of gravity Stability
To start A metre rule of mass 0.25 kg rests horizontally on two ping pong balls at the 5cm and 75 cm marks. Sketch the arrangement Calculate the support.
Presentation transcript:

S. Coghlan Physics 12

S. Coghlan This concept map is designed to help you; Understand how the various different parts of forces and equilibrium link together. Study the whole section of work. Main Concepts Linking words Printer friendly version available from my web site

Forces and Equilibrium Principal of moments  CM =  ACMTorque F x d Centre of massCentre of gravity Equilibrium may producehave involves show

Forces and Equilibrium Principal of moments involves Equilibrium show Torque F x d may produce Centre of mass Centre of gravity have

Centre of gravity rotational equilibrium typesconditions Forces and Equilibrium Principal of moments involves Equilibrium show Torque F x d may produce Centre of mass have  CM =  ACM  F V = 0  F H = 0  M = 0 StableNeutralUnstable

Centre of gravity Forces and Equilibrium Principal of moments involves Equilibrium show Torque F x d may produce Centre of mass have  CM =  ACM rotational equilibrium Stable Neutral Unstable types  F H = 0  F V = 0  M = 0 conditions

S. Coghlan Your own concept map Single page concept map

Principal of moments  CM =  ACMTorque F x d Centre of massCentre of gravity Equilibrium  CM =  ACM  F V = 0  F H = 0  M = 0 StableNeutralUnstable may produce involveshave show rotational equilibrium typesconditions strain You can use these Main Concepts and Linking Words to complete your own concept map. You can print out the next page and use it as a framework. Main Concepts Linking Words Printer friendly version available from my web site

Equilibrium Printer friendly version available from my web site

Centre of gravity Structures & Materials Principal of moments involves Equilibrium show Torque F x d may produce Centre of mass have  CM =  ACM rotational equilibrium Stable Neutral Unstable types  F H = 0  F V = 0  M = 0 conditions

Uniform object - geometrical centre. Gravitational field strength, g, is the same everywhere for the body. Centre of Mass = Centre of gravity Centre of Mass  Centre of gravity Object is so large that the gravitational field strength may not be the same everywhere over the body. 1 m

Force d d Lever d is always at right angles to the line of action of the force Torque Pivot Point Torque = F x d

If slightly pushed, and released; returns to its original position remains displaced continues to move and c of m lowers Stable equilibrium Neutral equilibrium Unstable equilibrium

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.