Friction
occurs when one object rolls over a surface
rolling friction
motion in a straight line
Translational
Given an example of Translational motion
moving car
any change in velocity; speed or direction
acceleration
equal forces acting on an object in opposite directions
balanced
occurs when one object slides over a surface
sliding friction
back and forth motion
Vibrational
Give an example of Vibrational motion
guitar string
speed and direction
velocity
unequal forces acting on an object in opposite directions
unbalanced
occurs when two objects are touching but not moving in relation to each other
Static Friction
motion around a central point
Circular
Give an example of circular motion
merry go round
the rate at which an object’s position changes
speed
total length along a path
distance
Give an example of Static Friction
A textbook on a desk
a change in position of one object in relation to a fixed object
motion
the resistance to motion
friction
Give the formula for speed
s=d/t
gives both the distance and direction of an object’s path from starting point straight to the ending point.
displacement
Give an example of Rolling Friction
A ball rolling on a field
Given an example of Sliding Friction
A kid going down a slide
the objects an observer uses to detect motion
Ex: Anything that doesn’t move in the flip book
Frame of Reference
Give the formula for velocity
v=d/t
Give an example of distance
a student walking around a room