0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How far an object is from a reference point?
the answer to that is motion
What information do you needs to describe an objects location?
To identify and objects location you need three pieces of information. These are a reference point, a distance from the reference point, and a direction from the reference point.
Does the displacement arrow depend on the choice of reference point?
Yes and no.Some use "displacement" only to describe a change in the position of an object from some initial starting point to some ending point. That is, there is a distinction between "position" and "displacement." The position would be defined relative to a reference point. In that case the arrow depends only on where the particle was and where it ended up and the reference point does not matter.Others use a definition for displacement which describes the difference between an object's position and a fixed reference point. That is, how far an object is displaced from a certain point even if the object had never been at that point. A distinction between position and displacement is not made. For this latter definition, the choice of reference point will make a difference in the direction of the arrow.In physics problems one usually only cares about the changes in position (and velocity, etc) and the choice of reference point will not affect these.
Gives a pictorial indication of how far and fast an object has moved?
frame of reference gives a pictorial indication of how far and object has moved
What location does the image approach as the object gets arbitrarily far away from the mirror?
Half the radius of the mirror, also known as the focal point.
How far an object is from a reference point?
the answer to that is motion
What information do you needs to describe an objects location?
To identify and objects location you need three pieces of information. These are a reference point, a distance from the reference point, and a direction from the reference point.
Why is reference point needed?
in order to find any location, or how far it is from one point to another, you first must know where you started
Does the displacement arrow depend on the choice of reference point?
Yes and no.Some use "displacement" only to describe a change in the position of an object from some initial starting point to some ending point. That is, there is a distinction between "position" and "displacement." The position would be defined relative to a reference point. In that case the arrow depends only on where the particle was and where it ended up and the reference point does not matter.Others use a definition for displacement which describes the difference between an object's position and a fixed reference point. That is, how far an object is displaced from a certain point even if the object had never been at that point. A distinction between position and displacement is not made. For this latter definition, the choice of reference point will make a difference in the direction of the arrow.In physics problems one usually only cares about the changes in position (and velocity, etc) and the choice of reference point will not affect these.
Gives a pictorial indication of how far and fast an object has moved?
frame of reference gives a pictorial indication of how far and object has moved
What location does the image approach as the object gets arbitrarily far away from the mirror?
Half the radius of the mirror, also known as the focal point.
What gives indication of how far and fast an object has moved?
The answer is frame of reference
The total distance an object moves from its starting point is what?
When an object moves, it travels some distance. Distance depends on speed and time traveled.How far you get while traveling is the displacement. Displacement and distance are different.Displacement is the difference from the starting point to the ending point. It is a vector, the vector with direction towards the end point from the starting point and magnitude, the separation.Distance is a scalar, magnitude only, and that is what most people mean by how far they travel.
Which best describes the anatomical location of the head with respect to the left arm?
Superior (towards head) Medial (towards the middle saggital plane) distal (far away from the point of reference).
A measure of how far an object has moved from the starting point?
Distance
Can you tell from a displacement - time graph whether an object is stationary?
No you cannot.A displacement-time graph is concerned only with radial motion: displacement from a fixed point of reference. Any transverse motion is completely ignored. Thus, if you had a body going around in a circle about the point of reference, its speed would be recorded zero even though it is far from stationary.
How does the distance moved by an object between its starting point and its ending point compare with the displacement vector between the same point?
Displacement is how far the object is from the starting point, while distance traveled is the how far the object traveled all together. -Eric P
