Consider a flat steel plate with a hole through its center. When the temperature of the plate is decreased, the hole will A) contract only if it takes up more than half the plate's surface area. B) contract as the plate contracts around it. C) expand as the plate contracts around it. remain the same size as the plate D) contracts around it.

9

2. An aluminum pot is left outdoors in the hot sun. As the pot’s temperature increases, which of the following statements about the inner and outer circumferences of the pot is true?  A.  Both the outer and the inner circumferences will increase.   B. The outer circumference will increase, but the inner circumference will not change.   C. The outer circumference will increase, but the inner circumference will decrease.   D. The outer circumference will not change, but the inner circumference will decrease.

When two objects are in thermal equilibrium with a third object, then: A.They are in contact with each other. B.They are in thermal equilibrium with each other. C.They are at odds with one another. D.They must be transferring heat between each other.