Physics 1710.003
Fall 2006
Examination 1
Name:
Student ID #:
This test consists of 9 multiplechoice questions and 4 problems.
To receive credit for the 4
problems, you must show all of your work on the pages provided.
Don’t hand in any extra
sheets or other paper.
I strongly recommend that you also show your work for the
multiplechoice questions.
Suggested procedure for solving the problems:
1.
Read each problem carefully and make sure you know what is being asked before starting the
problem.
2.
Draw a figure for the problem.
3. List the parameters given.
4.
Write down the equations to be used.
5.
Solve for the answer algebraically
6.
Substitute numbers into you final equation and circle your answer.
WORK THE EASY PROBLEMS FIRST!!
Assume that all quantities are known to three significant figures.
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1. (6 points)
Gold has a density of 19.3 g/cm
3
.
What is the radius
r
of a solid sphere of gold
that has a mass of
m
= 30.0 kg?
a) 1.55 m
b) 11.1 cm
c) 7.19 cm
d) 1.55 cm
e) 0.719 cm
2. (6 points)
The graph shows
the velocity of an object
moving along a straight line as
a function of time.
Identify, in
this order, the labeled points at
which the object has the
largest acceleration, the
largest speed, and the largest
positive displacement from its
initial position.
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 Fall '08
 Weathers
 Magnetism, Acceleration, Force, Work, Velocity, #, vxf

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