Chapter 7 Flashcards
Reference point
A place or object used for comparison to determine if something is in motion
Distance
The length of a pathetic between two points
Speed
the distance the object moves per unit of time
What is the equation for speed
Distance over Time
What is motion
An object is in motion if its position changes relative to another object or reference point
Average speed
The total distance over total time
Instantaneous speed
The speed at which an object is moving at a given instant in time
Velocity
Speed in a given direction
How do you know an object’s velocity
When you know both the speed and direction
Slope
Steepness of a line on a slope
How do you show the motion of an object
You plot the distance versus time
Slope formula
Rise over run
Acceleration
The rate at which velocity changes
What does acceleration refer to
Increasing speed, decreasing speed (deceleration), changing direction
Acceleration formula
Final speed minus initial speed over time
