| A | B |
|---|
| SPEED | ratio of distance/time an object moves at. |
| constant speed | also called as uniform rate which involves something travelling at fixed and steady pace |
| velocity | d/t in a specific direction |
| instantaneous speed | the speed of an object at any particular moment in time. |
| distance | how far an object moves |
| meters per second OR kilometers per hour | scientific units for speed |
| average speed | The total distance traveled divided by the time it takes to travel that distance. |
| reference point | landmarks/objects in a background that let you know motion has occurred |
| speed | how fast or slow an object moves |
| velocity | speed in a given direction |
| scientific units for speed | meters per second OR kilometers per hour |
| velocity | 55 m/s North |
| speed | The time rate of change of total distance traveled |
| velocity | Describes how quickly, and in what direction position changes |
| Velocity-Time Graph | Shows the relationship between the velocity of an object and the amount of time that has passed |
| position | describes the location of a place or an object |
| reference point | a location with which you compare other locations |
| direction | Using distance and ___________ can help you identify the position of something. |
| speed | When you describe how fast an object's position changes with time, you are describing its _________. |
| average | The _________ speed of a moving object is the total distance traveled divided by the total amount of time. |
| velocity | If you know both the speed of an object an the direction in which it is moving, than you know the object's ________, |
| motion | change in position |
| Newton's 1st Law | An object at rest will remain at rest and an object in motion will remain in motion unless acted upon by an unbalanced force. |
| inertia | Resistance of an object to a change in its motion |
| mass | Inertia is based on |
| friction | the force that acts between materials as they move past each other |
| Newton's 1st Law | If an object is moving at constant velocity it will keep moving. |
| unbalanced force | When the forces acting on an object are not equal and the motion of the object changes |
| force | required to change the motion of an object |
| inertia | The tendancy of an object to resist changes in motion |
