Summary of the key concepts on the topic Materials including Hook's law and Young's Modulus. The notes were based on specification and have thorough descriptions with images and definitions as well as past paper questions with model answers.
Unit 2 PHYA2 - Mechanics, Materials and Waves
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Hooke's Law
-
-
inratee limit F kx =
-
·Force is
proportional to extension.
Applies up
to the limitof
proportionalit
Extension m
Elastic limit -
maximum stress that a material can withstand before the deformat
permanent
plastic
limitof the linear.
proportionality a
pointbeyond
which
graph is no
longer
-
-
Rubber cord-
"
- III
Ill -
work
done
Thermal energy
stretch
Extension Why does exhibit
not
plastic behavi
deform the material No
-energy
to
-
permanentextension
-work done
stretching
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