A STRING TELEOPHONE
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Transcript of A STRING TELEOPHONE
TITLE
A STRING TELEOPHONEAMBER HUTCHINSONMS.FENTRESS
TABLE OF CONTENTSTITLETABLE OF CONTENTS QUESTIONHYPOTHESISVARIABLESMATERIALPROCEDURESGRAPHCONCLUSIONQUESTION?Bibilography
QUESTIONDo different types of string or string lengths affect the efficiency of a tin can or paper cup telephone?
HYPOTHESISI think the different types of string will affect the efficiency of a tin can or paper cup because the shorter length the shorter time.
4VariablesIndependent sound string and string lengthsDependent volumeControlled cups and holes
MATERIALSPaper cups largeTin cans mediumSting 10 ft and 5ftTwine 10ft and 5ftThread 10ft and 5ftAwl
PROCEDURESThread string through cups and cans. Stretch apart string twine and thread. Finally talked into cup while some one listened.
7graph
CONCLUSIONThe paper cup material is what makes the difference in sound not the string material.
QUESTION?How come you could not hear the tin cans echo but you could hear the paper cups?
BIBLIOGRAPHYENCYCLOPEDIA
BOOKS Last,First Field eneterprises educational corporation book
INTERNETString Phones ONLINE: www2.edc.org/sciencequest/2001/SQ0110141/index.htm