describing motion

• motion is the change in position over an interval of time
• points of reference is something that seems steady that is used to compare the position of an object
• displacement as measurement of the length plus direction it refers to the shortest distance between the object's two position.
• displacement measures the length of straight line that connects the object's point of origin and its point of destination
• distance refers to the length of the entire path that the object travelled.
• 60km per hr is the minimum speed limit in philippines
• speed is the distance travelled divided by the time of travel
• the maximum speed limit is 100km per hr
• the units of speed can be miles per hr, km per hr, m per sec
• speed with direction is referred as velocity.
• speedometer is a device used to measure the instantaneous speed of a vehicle
• acceleration is change in velocity over a time interval
• 4 main types of motion are rotary, oscillating, linear, reciprocating
• speedometer is