Reflection 1
–
florin
–
(56950)
1
This printout should have 11 questions.
Multiplechoice questions may continue
on the next column or page
–
find all
choices before answering.
001 (part 1 of 9) 10.0 points
What is the di
ff
erence between a mathe
matical vector and a VPython Arrow object?
1. The arrow object, when displayed,
has a di
ff
erent length but the same
direction as the mathematical vector.
2. The arrow object, when displayed,
has a di
ff
erent length and a di
ff
erent
direction than the mathematical vector.
3. A mathematical vector always has its
tail at the origin. An arrow object can
have its tail anywhere.
4. The arrow object, when displayed,
has a di
ff
erent direction but the same
length as the mathematical vector.
5. A mathematical vector can have its
tail located at any point. An arrow object
must choose a particular point for the
tail in order to display the vector. correct
Explanation:
002 (part 2 of 9) 10.0 points
For a VPython Arrow object, what is
the di
ff
erence between the attributes
’pos’ and ’axis’?
1. pos tells VPython where to locate the tail
of the vector; axis is the same as the mathe
matical vector to be displayed. correct
2. pos is the unit vector with the same
direction as the mathematical vector to
be displayed; axis is the same as the
mathematical vector to be displayed.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '08
 Turner
 Linear Algebra, Force, vpython, Standard basis

Click to edit the document details