Unit 2: Force & Motion In Our World Flashcards
Overview
Motion can be described by these three (3) things…
- Postition
- Direction of Motion
- Speed
Overview
All motion is relative to…
…the reference point the observer chooses
MW1
Science
Systematic knowledge of the universe gained through predictions, observation and experimentation
MW1
Technology
Design, development, and application of applying scientific or technical knowledge
MW2
Frame of Reference
The point or object of comparison when deciding if an object is in motion
MW2
Uniform Motion
Motion at a CONSTANT speed in a straight line
MW3
Rate of Change
A measure of how fast a quantity changes per unit of time
MW3
Position
An object’s location relative to a reference point
MW3
Distance = d
Length of path traveled between two points
MW3
Speed = velocity = v
Rate of change of distance of an object; distance compared to time
MW3
Instantaneous Speed
The actual speed of an object at a particular instant in time
MW3
Instantaneous Speed Equation
v = d / t
MW3
Average Speed = vav
Rate of change in distance over a time interval for a moving object; CHANGE in distance compared to CHANGE in time
MW3
Average Speed Equation
v = ∆d / ∆t
MW4
Acceleration = a
Rate of change of an object’s speed; CHANGE in speed compared to CHANGE in time
