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Voc.-Graphing Motion
Term | Definition |
---|---|
position | the location of an object You must have a reference point and a direction to describe the position of an object Ex: The filing cabinet is four floor tiles behind the classroom door. |
reference point | the point used to find or describe the location of an object. Ex: The car is parked behind the tree. The tree is the reference point. |
direction | the path an object moves toward or faces Ex: North, South, East, West, on top of, behind, under, beside etc. |
motion | a change of position Ex: The person was to the left of the lamp post. Now the person to the right of the lamp post. There was a change of position, so motion has occurred. |
force | a push or pull Ex: gravity, friction, magnetism, electricity, water, wind etc. |
balanced force | equal forces on an object that does not change the motion of the object. Ex: If 1 person pushing on a car does not move the car, it means no motion has occurred. The forces are equal or balanced. |
unbalanced force | forces on an object that causes change in the motion of the object. Ex: If 4 people push on a car, and it moves, motion has occurred because the four people have a greater force than the car. |
resting position | when an object remains in the same place (spot) or position Ex: an ant stops moving on a rock for a period of time. This is its resting position. |
speed | the rate of change of position (or distance traveled) with respect to time. Distance divided by time. |
distance-time graph | Illustrates changes in motion. The time in on the x axis and the the distance in on the y axis. |
speed-time graph | a graph that shows the speed of an object on the y axis and the time on the x axis. |
x-axis | the horizontal line with labels on a coordinate grid. Time is represented on the x axis. You always walk over to the elevator number first. (Read the horizontal first) |
y-axis | the vertical line with labels on a coordinate grid. Distance and speed are represented on the y-axis. (after you go to the elevator number you push the button for the floor you want to go up to) Read the vertical line last. |