9. An iron ball at 40°C is dropped in a mug containing water at 40°C.
The heat will
(a) flow from iron ball to water.
(b) not flow from iron ball to water or from water to iron ball.
(c) flow from water to iron ball.
(d) increase the temperature of both.
0. A wooden spoon is dipped in a cup of ice cream. Its other end
(a) becomes cold by the process of conduction.
(b) becomes cold by the process of convection.
(c) becomes cold by the process of radiation.
(d) does not become cold.
Answers
Answer:
9 flow from water to iron ball ten becomes Cold by the process of conduction
Answer:
9. - (b) not flow from iron ball to water or from water to iron ball.
10. - (d) does not become cold.
Step-by-step explanation:
9.) b) When an iron ball at 40 degree celsius is dropped in a mug containing water at 40 degree celsius, the heat will not flow from iron ball to water or from water to iron ball.
It is because of the fact that both the substance the water and the iron have the same temperature. Therefore, no transfer of temperature will take place in any of the substance.
10.) d) When one end of a wooden spoon is dipped in a cup of ice cream, there will be no change in the temperature of its other end because wood is a bad conductor of heat so there will be no flow of heat from one end to other.