1) Which of the following represents Hookes Law? a) x = Fk b) k = Fx c) F = k / x d) F = k + x e) k = F/x f) x = F - k 2) What is an elastic material? a) stretches when a load is added b) bends when a load is added c) streches when a load is added, returns to original form once load is removed d) stretches when a load is added, then breaks e) compresses when a load is added f) is permanently deformed when a load is added 3) Does Hooke's Law always apply? a) Yes b) No c) Up to the Elastic Limit d) Up to the Limit of Proportionality 4) Which of the following points is the Elastic Limit? a) A b) B c) C 5) Which of the following does NOT occur at the Yield Point? a) Beyond the yield point permanent deformation occurs b) Bonds between molecules begin to break c) The material completely fractures d) Molecules are able to slide past each other e) 'Necking' occurs

Mechanical Properties of Materials

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