S. Coghlan
13
S. Coghlan Physics 12
description
Physics 12. Forces and Equilibrium. Concept Map. 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. Printer friendly version available from my web site. - PowerPoint PPT Presentation
Transcript of S. Coghlan
S. Coghlan
Physics 12
S. Coghlan
This concept map is designed to help you;
Understand how the various different Understand how the various different parts of forces and equilibrium link parts of forces and equilibrium link together.together.Study the whole section of workStudy the whole section of work..
Main Concepts Linking
words
Printer friendly version available from my web site
Forces and Equilibrium
Principal of moments
CM = ACM Torque F x d
Centre of mass Centre of gravity
Equilibrium
may produce have
involves
show
Forces and Equilibrium
Principal of moments
involves
Equilibriumshow
Torque F x d
may produce
Centre of massCentre of gravity
have
Centre of gravity
rotational equilibrium
types conditions
Forces and Equilibrium
Principal of moments
involves
Equilibriumshow
Torque F x d
may produce
Centre of mass
have
CM = ACM
FV = 0 FH = 0
M = 0
Stable Neutral Unstable
Centre of gravity
Forces and Equilibrium
Principal of moments
involves
Equilibriumshow
Torque F x d
may produce
Centre of masshave
CM = ACM
rotational equilibrium
Stable
Neutral
Unstable
types
FH = 0 FV = 0
M = 0
conditions
S. Coghlan
Your own concept map
Single page concept map
Principal of moments
CM = ACM Torque F x d
Centre of mass Centre of gravity
Equilibrium
CM = ACM
FV = 0 FH = 0
M = 0
Stable Neutral Unstable
may produce
involves have
show
rotational equilibrium
types conditions
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 WordsPrinter friendly version available from my web site
EquilibriumPrinter friendly version available from my web site
Centre of gravity
Structures & Materials
Principal of moments
involves
Equilibriumshow
Torque F x d
may produce
Centre of masshave
CM = ACM
rotational equilibrium
Stable
Neutral
Unstable
types
FH = 0 FV = 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 thegravitational field strengthmay not be the same everywhere over the body.
1 m
Force
d
d
Force
Lever Lever
d is always at right angles to the line of action of the force
Torque
Pivot Point Pivot Point
Torque
= F x d
If slightly pushed, and released;
returns to itsoriginal position
remainsdisplaced
continues to move and c of mlowers
Stableequilibrium
Neutralequilibrium
Unstableequilibrium
