Question 1 (1 point) Why does temperature change always move from regions of hot to regions of cold? because hotter particles can not slow down because this is the fastest, most efficient means of conducting thermal energy because colder particles have more potential energy because kinetic energy is transferred in the collisions of particles Question 2 (1 point) Suppose you place an ice cube into a cup of hot tea? What will happen to the temperature of the ice cube and the tea? The temperature of the tea will drop quickly, while the temperature of the ice will increase slowly. The liquids may or may not reach equilibrium. The temperature of the ice will rise slowly at first and the temperature of the tea will drop slowly; then the temperature change quicken until equilibrium is reached. The ice will melt and the temperature of the tea will drop quickly; then the change will slow until equilibrium is reached. The temperature of the ice will increase quickly, while the temperature of the tea will drop slowly. The liquids may or may not reach equilibrium. Question 3 (1 point) You have a small piece of iron at 25 .C and place it into a large container of water at 75 .C. Which of these could be the temperature of the water after 10 minutes? 80 . C MacBook Air 20 G F1 F2 F3 F4 F 5 F6 F7 @ $ % 2will drop slowly. The liquids may or may not reach equilibrium. Question 3 (1 point) You have a small piece of iron at 25 C and place it into a large container of water at 75 C. Which of these could be the temperature of the water after 10 minutes? 80 .C 75 .C 40 OC 25 . C Question 4 (1 point) 200 grams of water originally at 75 degrees is mixed with 100 grams of water originally at 25 degrees. What will be the temperature a few minutes after the water is mixed? 15 degrees 10 degrees O 100 degrees 62 degrees Question 5 (1 point) Scout feels ill one day before school. Her mother puts a thermometer in her mouth and the temperature begins to climb to 100 F. What is happening between the cooler thermometer and Scout's body? caut's body MacBook Air 20 Q G F1 F2 F3 F4 F5 F6 F7 @ # $ % & 2 3Question 5 (1 point) Scout feels ill one day before school. Her mother puts a thermometer in her mouth and the temperature begins to climb to 100 F. What is happening between the cooler thermometer and Scout's body? Potential energy is being lost by the thermometer and gained by Scout's body. The potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer. Kinetic energy is being transferred from her mouth to the thermometer. Scout's body is applying a force to the particles in the thermometer. Question 6 (5 points) Jim is investigating the idea that the transfer of thermal energy when two components of different temperature are combined within a . He uses a calorimeter to accurately measures the transfer of thermal energy by measuring changes in the of the system. The calorimeter allows him to study how the temperature changes when mixing liquids at different initial temperatures as well as how it changes when adding objects at different temperatures to water. In both cases the substance transfers thermal energy to the until the substances reach Place the terms below in order that they should appear in the paragraph above. warmer cooler temperature closed system MacBook Air :9.- 20 Q G DII F1 F2 F3 FA F5 F6 F7 F8 # $ % 3 4 5 6 8 W E R T Y Uthermometer. Scout's body is applying a force to the particles in the thermometer. Question 6 (5 points) Jim is investigating the idea that the transfer of thermal energy when two components of different temperature are combined within a He uses a calorimeter to accurately measures the transfer of thermal energy by measuring changes in the of the system. The calorimeter allows him to study how the temperature changes when mixing liquids at different initial temperatures as well as how it changes when adding objects at different temperatures to water. In both cases the substance transfers thermal energy to the until the substances reach Place the terms below in order that they should appear in the paragraph above. warmer cooler temperature closed system equilibrium