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Saint Louis University

School of Engineering and Architecture

Physics Department

Preliminary Term Exam

Class Numer! """"""""""

Name! """"""""""""""""""""""""""""""

Test #$ %&D#'#ED T(UE &( 'ALSE$ )rite T(UE on the space provided if the statement

is correct* other+ise, underline the statement +hich ma-es the statement incorrect and

+rite the +ord or phrases to replace the incorrect statement$ ./0 points1

"""""""""""""""""2$ Periodic motion occurs +henever the ody has

a stale e3uilirium position and a restoring force that acts

+hen it is displaced from e3uilirium$

"""""""""""""""""/$ Period is the numer of cycles per unit time+hile fre3uency is the time for one cycle$

"""""""""""""""""4$ Simple harmonic motion is the type of periodic

motion +here the restoring force is directly proportional to the

mass of the virating ody$"""""""""""""""""5$ A simple pendulum consists of a point mass at

the end of a massive massless string$

"""""""""""""""""6$ The small angle approximation states that for

any angle in degree units, sin 7 is approximately e3ual to 7$

"""""""""""""""""8$ A +ave is any disturance from an e3uiliriumcondition that propagates or travels from one region to another$

"""""""""""""""""9$ %echanical +aves are disturance that can

travel through empty space or vacuum$

""""""""""""""""":$ #n a transverse +ave, the particles are

displaced in a direction parallel to the direction of energy

transport$""""""""""""""""";$ The velocity of a transverse +ave is e3ual to

the s3uare

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attaches a 2$ angular fre3uency of the oscillation$C$ fre3uency of the oscillation$D$ period of the oscillation$

< Page 2 of / </$ Continuing +ith her experiment, the student +anted the spring

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