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9 - Mod 10 Lesson 1
Term | Definition |
---|---|
Displacement | the change in position of an object |
Distance | the length of a path between two point |
instantaneous speed | the speed at a certain given moment |
Magnitude | the size of a quantity |
meters (m) | distance is measured in |
meters per second (m/s) | velocity and speed are measured in |
meters per second squared (m/s^2) | acceleration is measured in |
Motion | is an object's change in position relative to a reference point |
Reference Point | A place or object used for comparison to determine if an object is in motion |
scalar quantity | Speed is a ___________. |
Scalars | quantities that are fully described by a magnitude (or numerical value) alone |
second (s) | time is measured in |
Speed | the distance something travels in a certain amount of time |
vector quantity | Velocity is a ___________. |
vector | a quantity that has magnitude and direction |
Velocity | the speed of an object in a particular direction |