Motion and Forces

Motion

Forces

Gravity, Friction, and Pressure

Work and Energy

Machines

Speed= Distance/time (S=d/t)

Tme=Distamce/Speed (t=d/S

acceleration=final velocity-initial velovity/ time (a=^V final-^V initial/ t

Force=mass*acceleration (f=ma)

Acceleration=force/mass (a=fm)

Momentum=mass * velocity (p=mv)

Pressure= Force/Area (P=F/A)

Work=Force * Distance (W=Fd)

Gravitational Potential Energy= mass gravitational acceleration height (GPE= mgh)

Mechanical Advantage= Output force/ Input force (MA=^F out/ ^F in)

Effiency (%) =)Output work/input work) *100

Effiency= )540 J/ 600 J) *100=90%

Ideal Mechanical Advantage= length of incline/ height of incline ( IMA=l/h)

Ideal Mechanical Energy= Radius of input/ Radius of output (IMA= ^R in/ ^R out)

distance from input force to fulcrum/ distance from output force to fulcrum (IMA= ^d in/ ^d out)

Mechanical Energy= Potential Energy + KInetic Energy (ME= PE+KE)

Kineric energy= mass* velocity ^2 /2 (KE= 1/2 mv ^2

Power= Work/ time (P=W/t)

Power= Energy/time (P=E/t)