Coordinates.
Am a bit confused by what is meant by a suppressed zero. does that mean that the 0 isn't written and must be assumed at the origin.
Why is the use of a spatial coordinate system important to mark places when in today's time a map can be used to do so?
Is a spatial coordinate system only restricted to 3D space?
It is theorized that the universe is continuously expanding as time passes by. This means the universe does not have a defined shape or size because it grows infinitely. If NASA made a coordinate system for space, how can a coordinate system be constructed when the universe is constantly becoming bigger and bigger?
Can the axes of a spatial coordinate system have different units?
How do you compress something that is 3D into a 2D representation? Isn't it not a very accurate representation anymore if you are losing an entire dimension to it?
Do the same 3 steps for creating a coordinate system apply to the Z dimension? Or are there more rules/steps that govern this dimension? In essence, do all 3 dimensions behave the same way?
coordinates need to be in a fixed position, as our origin point. But in real world any spot or point we pick on earth would it be fixed since the earth spins and moves ?
Will we encounter "suppressed zeros" in this class? Or is this just a concept we should be aware of when reading advertisements, studies, etc.?
I see that the arrowhead indicates a positive direction and the graph shown in the example is only one quadrant but will there ever be a four quadrant graph(vector problem) like in math?
As mentioned in the reading, there is what is called a "suppressed zero" coordinate system, where the origin is not shown in the graph. If this is the case, how we will know if it is in a positive location or negative location of the graph, or will the arrowheads still be able to tell us that information?
If we are using coordinates to represent a position in physical space, why are we not using the z axis? How can a 2 coordinate axis represent physical space? I understand that it is more complex, but the third axis truly represents real world "space".
I dont understand the purpose of a suppressed zero. Could you give me an example?
What kind of research requires measuring data on spatial coordinate systems?
Are we going to be using three axes in order to graph 3D coordinates?
In the reading, it was stated that curves in this class can go back and forth, cross themselves, etc. and that this doesn't happen in math classes - I thought that in math classes the same could also happen?
When creating a coordinate system tied to a physical space, do the two axis have to be perpendicular to one another like in the x,y graph example given? In addition, can arrows not be drawn on all direction of the axis, only the positive direction?
Why is it that we restrict motions to one or two dimensions when we live in a three dimensional space and so much of our class seems to be focused on real world application?
In non-spatial coordinate systems, they are used to make someone think that the effect is greater than it actually is. Why would would you wanna do that?
What is an example in biology where a spatial coordinate system is used?
How can suppressed zero graphs lack an origin? Don't all graphs representing movement of an object in space have to have a starting point in which it specifies the initial position of an object (since initial positions/velocities/etc. are often used in calculations)?
How are coordinates used in the medical profession?
What is an example of a non-spatial coordinate system? Why would a suppressed zero need to be used to mislead the viewer into thinking an effect is more important than it is? What kind of effect?
Is there a way to combine separate but concordant coordinate systems in order to mediate between the two systems?
Do units for both axis always have to be the same in a spatial coordinate system?
How would you map a 3D space?
Is there difference between "position" and "location?
Does each axis have to measure a distance/length? And can they be different units?
For the idea of a "suppressed zero", is that something that is used as a respected method in mathematics or something that businesses, advertising agencies, etc. use to skew data and represent something that is not in fact true in order to make money? If it only causes misconceptions, I don't understand why it would be used by scientists.
Why would the creator of a graph intentionally mislead the viewers like in a suppressed zero?
Do you only pick two variables to graph when there is an equation with more than two variables?
Do spatial coordinates have to have a scale since they represent real positions?
What is the difference between a regular x-y plot used in ordinary mathematics and a spatial coordinate system using 2 dimensions? If a spatial coordinate system functions to represent position in real space, can't a 2-axis graph used in normal math perform the same function as well, although more abstractly?
Can the the line in a spatial coordinate graph be measured as the distance traveled, for example, of a boat travels in the ocean? Sort of like killing two birds with one stone by getting both the position and distance traveled?
In the graph shown, is it a 'suppressed zero'? As the 2 axis seem to cross at the origin. a
In the reading it said: in a spatial coordinate system, a curve might represent a path an object follows. Since an object can go anywhere, the curve can go back and forth, cross itself, and do lots of other things that graphs in a math class don't usually. Does this mean we will also graph moving objects and how is this possible?
For a spatial coordinate system if the object of interest has more than 2 dimensions (ie. a 'z' axis) are we responsible for mapping that?
The coordinate graph depicted in this reading looks the same as those used in math classes. What then is the biggest difference between coordinate systems in physics and those in math? Should I expect to see them as similar or should I be seeing some type of distinction between the two?
Are these the kinds of graphs that we should use for any object in motion, such as a the parabola from shooting off a toy rocket?
Is it possible to have multiple dimensions on a single coordinate system?
Because physics applies to the real world applications, why is it that most of the models are presented in 2D dimensions?
What is the purpose of using a plane to describe our motions in two dimensions when we can't pinpoint the position in physical space
Which direction is considered positive and negative direction?
Is adding a "suppressed zero" to a graph only done to mislead the viewer? Can it be used to highlight a different relationship between the values that is only clear when the zero is suppressed?
How can the dimensions of the axes in a spatial coordinate system be different, since the example you gave in the reading had length as the dimension in both directions?
Often when we think about movement we think of the distance an object moves over time from its origin to another position. Can a spatial coordinate system be used to track the change in an objects position over time in a given physical space? If not, what would be a good method to graphically show this change?
How can a graph indicate where something is in physical space if you do not know where it started? In other words, since the origin is not labeled, how do you know where the object is "moving" to?
Can we think of this "spatial coordinate systems" simply as maps? From math class, or other sciences, we have gotten used to using systems in observing a change over time with different x and y axis. For example "speed over time" or "absorbance over time", in the provided example, we are given the units of meters for both axis, is this the similar to longitude and latitude on a map?
Is a line or curve on a coordinate plane, the kind defined by an equation such as y=mx+b, considered a vector, or just a series of related coordinates? I know a vector has a direction by definition, but is a y=mx+b line considered to have a direction?
On a coordinate graph, will it ever be appropriate to use symbols other than x or y in order to identify the specific dimension that we are referring to?
Which direction is considered the positive direction? Is up considered positive and down considered negative? If not, what determines this?
How and when will we be using spatial coordinate diagrams?
How does the 2d figure accurately depict real life situations for 3d situations?
In the reading it states "points on the graph are meant to correspond to the points in real space -- like a map" in a spatial coordinate system. While the different points in a system like this indicate different positions of an object, will the different points be used to represent the change in the position of an object over time, and if so how will the change in time be represented within the system, or will they be used to indicate the position of multiple objects within the single system?
What things do non-spatial coordinate systems represent?
How would someone make a graph on paper that includes 3 numbers?
How can we interpret a 2D graph and relate it to a 3D physical space?
Can a spatial coordinate system have axes that are different units?
I don't quite understand the concept of "suppressed zero"
While making spatial coordinate systems, do we create equations that go along with them or do we just focus on the graph?
Since the title is length vs. position, are spacial coordinate systems ineffective for determining length?
most physics equations are comparing multiple variables (sometimes 4 or 5) how would we go about comparing these complex equations on a graph?
Why do we need to have a fixed reference in a spatial coordinate system? Is that the same as a regular x,y graph and the fixed reference point is (0,0)?
How do we determine where the origin of our spatial coordinate system will be? If we can choose any point, won't answers vary from student to student?
If we were asked to use a spatial coordinate diagram, would we need to label the origin, or is it fine to use a suppressed zero?
is the only reason we use the spatial coordinate system to represent a position in the physical world? or are there other purposes?
What would be the point in misleading the viewer into thinking an effect is more important than it really is by using a suppressed zero?
Because a "suppressed zero" can be used to magnify variation in a curve, is the information obtained from a suppressed zero accurate and trustworthy?
How does a non-spatial coordinate graph increase the visibility/magnification of a curve? Would it really mislead someone since virtually it would still have the normal dimensions if the curve was present in a spatial coordinate graph?
Do we graph 3D structures the same as 2D ones?
When we are graphing, is it possible that x can have a different dimension than y or do they have to be the same?
How does one decide where the reference point (origin) is - Is there a way to determine the most efficiently located point, or can it be anywhere?
Do the units represented on the x-axis have to correspond proportionally to those on the y-axis?
If a suppressed zero is used to magnify some sort of difference, usually to mislead individuals, in what scenarios (in both physics and realms outside of physics) would it be useful to create such a graph?
It is said that there are a number of conventions that we will apply in this class for creating spatial coordinate systems. Other than the few and elemental applications given in the text, what are some other and more in-depth conventions for creating spatial coordinate systems that we will have to look out for this class?
What is the closest equivalency to the real world when represented by a spatial coordinate system. Is it a 3D model with the incorporation of time?
Spatial coordinate systems are used to physically map out a direction, and in the reading it is mentioned that there is a positive and negative direction. In reality we have 4 types of directions being ( North, South, East, West) so can this not be indicated in the system?
A spatial coordinate system shows positions in certain locations, and can show direction an object follows. Does this mean that you can predict an objects pathway and its future position using a formula that was created from the points on the graph/spatial coordinate graph?
Are spacial coordinate graphs drawn and created just like normal graphs, but interpreted differently, where you could use a formula (f(x)) for an objects movement pattern, then plug in a number that represents a time in that formula and then predict where that object would be located?
After reading the descriptions about both the spatial and regular coordinate, it perplexes me that although they are both considered to be coordinate systems, these separate graphs measure two completely different things. Spatial coordinate systems resemble more of a map or tracking mechanism while another coordinate system plots an exact point in a large area. how is this possible?
What would be an example of a "non-spatial" coordinate system? And if the origin is not shown in this system, how it is considered a system of coordination?
I am curious about the concept of a "suppressed zero." What specific graphs use suppressed zeros? I am wondering if we could see an example in class?
If we're using a coordinate system to represent physical space, can there exist a negative axis/direction?
Are spatial coordinate systems similar to vectors? If so, how and do we need to be familiar with vectors like we learned in math classes?