Question

Metal bridges can be affected by very hot temperatures on a summer day. Which of these statements describes how a metal bridge is affected by temperature? Select two answers.
Responses
A The metal contracts and becomes less stable. The metal contracts and becomes less stable.
B The molecules of the bridge move more slowly. The molecules of the bridge move more slowly.
C The molecules of the bridge move more quickly. The molecules of the bridge move more quickly.
D The metal of the bridge expands. The metal of the bridge expands.
E The metal bridge is unaffected by the temperature. The metal bridge is unaffected by the temperature.
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Answer 1

C and D

Explanation: Higher temperature increases the kinetic energy of the metal’s atoms so they move more quickly (C), causing the metal to expand (D).