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Winter

2015

-

Physics

161

-

Exam

1

Instructions: AIi

work must be shown on

this

exam

packet.

No work on

scrap

paper

will

be

accepted.

No

books

or calculators.

No

notes except

for

a 3x5

notecard.

(2

points

each)

For

problems

1-10, circle

the

best

answer.

1. If a

flower is

6.5 cm

wide, its width expressed

in

millimeters is

x mm,

where

x

is

Iess

than 6.5.

greater

than

6.5.

2.

When

adding

two

numbers,

the

number of significant

figures in

the

sum

is

equal

to

the

number

of

significant

figures in

the

least accurate of the

numbers being added.

(a)

Tlue

hput."

v

3,

0.0001776

can also be expressed

as

(a\

1.776

x

10-3

.F