Question

Two identical metal spheres at 8 °C are put in equal amount of water in two beakers, as shown below.

Two beakers are side by side; one is labeled Beaker A and the other is labeled Beaker B. Both beakers are the same shape, size, and are about two-thirds full with water. Both beakers have a metal sphere with a temperature of eight degrees Celsius submerged in the water.



Heat flows from the metal sphere to the water in Beaker A and from the water to the metal sphere in Beaker B. Which statement is correct?



The temperature of the water is greater than 8 °C in Beaker A.


The temperature of the water is lower than 8 °C in Beaker B.


The temperature of the water in Beaker A will increase.


The temperature of the water in Beaker B will increase.

Answer 1

c

Explanation:

Answer 2

`\boxed{ \text{The temperature of the water in Beaker A will increase.}}`

Explanation:

Heat always flows from a hotter object to a colder one. If heat flows from the sphere to the water,
`\boxed{\textbf {the temperature of the water will increase.}}`

A is wrong. If the temperature of the water is greater than 8 °C, heat will flow from the water to the sphere.

B is wrong. If the temperature of the water is lower than 8 °C, heat will flow from the sphere to the water..

D is wrong. If heat flows from the water to the sphere, the temperature of the water will decrease.