Physics 2425 (Coats) - Exam 3 - Fall 2004
> Print
your name on the back along the upper right-hand edge of the paper. Do not write
your name anywhere on the front of the exam.
> Use dark lead pencil only: no pens, no colored inks.
> Use the backs of the exam sheets for scratch paper. Do not use any other paper for this
exam. Do not mark the formula sheet unless told to do so.
> Strong Suggestion -- Read the entire exam. Do the problems you
know
you can do first. Next
do the problems you
think
you can do.
Anything else is last.
1. Matching:
4 Acceleration
4 Average Speed
4 Average Velocity
4 Displacement
4 Distance
4 Frame Of Reference
4 Instantaneous Speed
4 Position
4 Scalar
4 Speed
4 Vector
4 Velocity
(A) Change in position
(B) Change in position over change in time.
(C) Change in velocity over change in time.
(D) Direction only
(E) Distance and direction from a reference point.
(F) Distance per time
(G) Length without direction
(H) Magnitude and direction
(I) Magnitude only
(J) Required to describe position, displacement, speed, and
acceleration. Often indicated by coordinate axis.
(K) Speed at an instant. (Speedometer speed)
(L) Total displacement divided by total time.
(M) Total distance divided by total time.
2. Graphic Vector Addition & Subtraction: For the following, sketch the sum or
difference as indicated. (Note: Both sum and difference vectors must start from the
origin for full credit.)
!
v
A +
v
B
!
v
A "
v
B
!
v
B +
v
A
!
v
B "
v
A
!
v
A +
v
B
A
A
B
A
B
A
B
A
B
B
