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Unit2 Mod1 Lesson 1
Position and Motion
| Term | Definition |
|---|---|
| Motion | An act or process of changing place or position : movement. b. : an act or instance of moving the body or its parts : gesture. motionless. |
| Speed | Speed denotes only how fast an object is moving, distance divided by time. |
| Velocity | velocity describes both how fast and in which direction the object is moving. If a car is said to travel at 60 km/h, its speed has been specified. However, if the car is said to move at 60 km/h to the north, its velocity has now been specified. |
| Reference Point | bench mark, benchmark. a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point. landmark. |
| Vector | a quantity or phenomenon that has two independent properties: magnitude and direction. Such as magnitude and direction. |
| Relative | considered in relation or in proportion to something else. |
| Direction | the path that something takes, the path that must be taken to reach a specific place, the way in which something is starting to develop or the way you are facing. An example of direction is when you go right instead of left. |
| Distance | the total movement of an object without any regard to direction. |
| Distance Time Graphs | shows how far an object has travelled in a given time. It is a simple line graph that denotes distance versus time findings on the graph. Distance is plotted on the Y-axis. Time is plotted on the X-axis. |
| Magnitude | distance or quantity.” It depicts the absolute or relative direction or size in which an object moves in the sense of motion. It is used to express the size or scope of something. In physics, magnitude generally refers to distance or quantity. |
| constant velocity | means that the object in motion is moving in a straight line at a constant speed. |
| Changing Velocity | either a change in an object's speed or its direction. |
| Average Speed | total distance traveled by the object in a particular time interval. The average speed is a scalar quantity. It is represented by the magnitude and does not have direction. |
| Displacement | defined to be the change in position of an object. |
| Position | Te place where something or someone is, often in relation to other things |
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