Science Unit 2 Flashcards
Acceleration
The change in velocity during a particular time period.
Distance
The total length of the path between two points.
Frame of Reference
The object an observer uses to detect motion.
Motion
The change in the position of an object over time.
Speed
The distance an object moves in a certain period of time.
Vector
A measure such as velocity that includes both size and direction. It maybe represented by an arrow.
Velocity
A measure of both the speed and direction of a moving object.
What is speed and how is it measured?
The distance an object move in a certain period of time. Speed is measured in meters per second.
How does a graph represent an object’s motion?
The y axis is for the distance and the x axis is for time.
How does a vector represent velocity?
When using an arrow to represent velocity, the length of the arrow stands fro speed, and the way the arrow points indicates the direction.
