Question
I have a test coming up. Can anyone help with these so I at least know a basic format/idea I can use to solve any
I have a test coming up. Can anyone help with these so I at least know a basic format/idea I can use to solve any question(s)? Thank you!!
-When given quantitative answers, how would you list any physical quantity with their corresponding units?
-When working with vector quantities, how would you clearly define the (Cartesian) coordinate system (reference frame) that is used (this choice defines the directions that are considered positive), and then how would you assign appropriate + or - signs to the vector components consistent with the choice of positive axis in the coordinate system used? -In addition, how would you then determine (by comparison with your positive direction) if a (scalar) vector component of (displacement, velocity, acceleration, or force) is positive or negative?
-How do you add or subtract vectors by using the graphical method (while clearly indicating the direction of the resultant vector)?
-How do you resolve a vector into its x- and y-components when given the magnitude and direction of the vector?
-How do you add or subtract vectors by using the component method?
-How do you calculate the magnitude or direction of a vector from its components?
-When given a description of a situation, how would you determine which forces are acting (and in which direction) and how to draw a free-body diagram for the object(s) of interest or interpret a given free-body diagram?
-How would you then figure out the characteristics (under which circumstance, in which direction) of forces like weight, tension, spring force, normal force, and friction?
-How do you rank the relative magnitude of forces acting?
-Lastly, how do you find the magnitude and direction of the net force or determine the acceleration (vector), and then predict the effect on the motion of an object depending on its velocity?
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