# Physics-Mechanics

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• Mechanics
• Forces in Action
• Car Safety
• Kinetic Energy= Braking Force x Braking Distance
• Seat Belts,Air Bags, Crumple Zones
• GPS
• Stopping Distance= Thinking Distance + Braking Distance
• Turning  Forces
• Moment
• Moment=F x Perpendicular Distance From The Pivot
• Principle of Moments
• Torque
• Torque=One of the forces x the perpendicular distance between the two forces
• Couple
• Resultant Force
• F=MA
• Newton Definition
• Balanced Forces
• Triangle of Forces
• Terminal Velocity
• Drag
• Pressure
• P=F/A
• Liquids
• P=hpg
• Floating and Sinking
• Density
• Mass per unit area
• p=M/V
• Motion
• Motion Graphs
• Velocity-Time Graphs
• Acceleration-Time Graph
• Describe Motion
• Displacement -Time Graphs
• Constant Acceleration Equations
• SUVAT
• V=U+AT
• S=U+V/2XT
• S=UT+0.5AT^2
• S=VT-0.5AT^2
• V^2=U^2+2AS
• Free Fall
• Trap Door Method
• g=9.81ms^2
• Scalars
• Potential Difference, Distance, Speed, Pressure ...
• S=D/T
• Vectors
• Triganometry
• Pythagoras
• A^2+B^2=C^2
• Horizontal and Vertical Componants
• SI Units
• kg,m,s,K,A,mol
• Prefixes
• Energy
• Power
• Watt
• 1 W = 1Js^1
• P=W/T
• Work
• Joule
• W = Fx Cos angle
• W = 0.5Fx
• W = F X Distance moved in the direction of the force
• Work
• Joule
• W = Fx Cos angle
• W = 0.5Fx
• W = F X Distance moved in the direction of the force
• Forms of Energy
• Chemical
• Electrical
• Electromagnet
• GPE
• gph
• =
• 0.5MV^2
• internal
• Nuclear
• Sound
• K.E
• 0.5MV^2
• Materials
• Plastic
• Elastic
• Hooke's Law
• Elastic Limit
• F=kx
• Young Modulus
• Stress/Strain
• Stress =  F/A
• Strain = E/L
• Efficiency
• Efficiency = Useful output energy / Total input energy x 100
• Sankey  Diagrams
• Conservation of Energy
• Create and Destroy
• Transfer and Transform
• Conservation of Energy
• Create and Destroy
• Transfer and Transform
• Forces in Action
• Car Safety
• Kinetic Energy= Braking Force x Braking Distance
• Seat Belts,Air Bags, Crumple Zones
• GPS
• Stopping Distance= Thinking Distance + Braking Distance
• Turning  Forces
• Moment
• Moment=F x Perpendicular Distance From The Pivot
• Principle of Moments
• Torque
• Torque=One of the forces x the perpendicular distance between the two forces
• Couple
• Resultant Force
• F=MA
• Newton Definition
• Balanced Forces
• Triangle of Forces
• Terminal Velocity
• Drag
• Pressure
• P=F/A
• Liquids
• P=hpg
• Floating and Sinking
• Density
• Mass per unit area
• p=M/V