Science Chapter 3
Terms
undefined, object
copy deck
- terminal velocity
- forces on a falling object that are balanced an the object falls with a constant speed
- gravitational force between two objects depends on
- mass, distance
- momentum depends on
- mass and velocity
- when force increases the acceleration
- increases
- momentun equation
- P = m x v
- acceleration
- rate of change in the position of an object
- mass-gravity
- gravity dpends on mass
- centripetal accleration
- acceleration of a curved path or circle
- action force/reaction force
- work in different pairs, forces are equal/ not balanced
- rolling friction
- friction between a rolling object and the surface it rolls on
- weight
- amount of gravitaional force exerted on an object
- 3N reaction force =
- 3N action force
- p =
- momentum
- friction
- force opposing motion between surfaces touching each other
- free fall
- unrestrained motion in place where gravity is acting
- Newton's law 2
- mass x acceleration
- the closer to earth's core
- weight increases
- air ressitance
- causes some objects to fall slower than others
- when an object is in free fall
- it is weightless
- Newton's law 3
- For every action, there is an equal and opposite reaction
- centripetal force
- toward the center of the circle
- transfer of momentum
- from one object
- gravity is a
- long distance force (never 0)
- sliding friction
- friction that opposes the motion of 2 surfaces sliding past each other
- objects in orbit appear to be
- weightless
- momentum's unit
- kg x m/s
- action and reaction pairs always work in
- diff/pairs
- static friction
- occurs when 2 objects are not past each other
- microwelds
- areas where the surface bumps stick together and are the source of friction
- projectile (pathway)
- curved pathway
- Newton's law 1
- Every object remains still or continues moving unless another force acts apon it