AP PHYSICS B 13 14
FORCES FROM UNIT 3
Forces from Unit 3: Weight (W=mg), Normal Force (N), Tension (T)
Pulleys: One Rope = ONE Tension
Friction
Ff = Fn (where = coefficient of friction and Fn = normal force)
Kinetic/Static Friction
fs: not movi
AP PHYSICS B 13 14
Simple Harmonic Motion:
 X vs T graph is a sine or cosine graph
 Restoring force is proportional to its displacement from equilibrium
!"
= ! where A = radius
!"#
Period of a Mass on a Spring: = 2
!
!
where k = prop
AP PHYSICS B 13 14
UNIT 15 REVIEW (NOT COMPREHENSIVE)
Momentum: p = mv
Impulse: J = p = Ft
Conservation of Momentum: m1v1 = m2v2
Elastic Collision: KE is conserved
Inelastic Collision: KE is not conserved
Perfectly Inelastic Collision

AP PHYSICS B 13 14
Uniform Circular Motion: is tangent to circle, while points toward the center of the
circle
Centripetal Force
Fc = ma
Centripetal Acceleration
!
= ! =
Velocity
!"
= !
! !
!
where T = period
where T = period
AP PHYSICS B 13 14
PRESSURE
Gauge Pressure: Pgauge = gh
Absolute Pressure (only works w/still liquids): P2 = P1 + gh
Pressure only depends on height/depth of liquid (see PR p159)
Archimedes Principle: !"#$ = ()
Buoyant force is equal to t
AP PHYSICS B 13 14
UNIT 1 REVIEW
Position vs Time (X vs T) Graphs
 Location: Xvalue
 Velocity: Slope
 Acceleration: Absolute value of slope increases
 Deceleration: Absolute value of slope decreases
Velocity vs Time (V vs T) Graphs
 Location: Area

AP PHYSICS B 13 14
UNIT 2 REVIEW (NOT COMPREHENSIVE)
1st Law: Natural motion
2nd Law: F = ma
Only NET force (not individual force) can equal ma
ALWAYS: Force in Direction of Motion  Opposing Force
Constant Velocity: Acceleration = 0: Net
AP PHYSICS B 13 14
HEAT TRANSFER
Types of Heat Transfer
Convection: hot to cold, simple, liquids and gasses, currents
Radiation: electromagnetic waves, from the sun through space
Conduction: moves through material like a wave, (eg) heating of a pot
!