Lesson 2.1 – Heat, Temperature, and Conduction

1. When the room temperature washers were placed in hot water, what did you notice about the temperature 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐚𝐭𝐞𝐫?

• the temperature of the water increased
• the temperature of the water decreased
• the temperature of the water stayed the same

2. What was the final temperature 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐚𝐭𝐞𝐫 in the cup? Re-watch the video if you do not recall the exact number.

• 31°C
• 41°C
• 51°C
• 61°C

3. Do you think that the temperature 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐚𝐬𝐡𝐞𝐫𝐬 increased, decreased, or stayed the same after they were placed in the hot water?

• the temperature of the washers increased
• the temperature of the washers decreased
• the temperature of the washers stayed the same

4. When the hot washers were placed in the room-temperature water, what did you notice about the temperature 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐚𝐭𝐞𝐫?

• the temperature of the water increased
• the temperature of the water decreased
• the temperature of the water stayed the same

5. Do you think the temperature 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐚𝐬𝐡𝐞𝐫𝐬 increased, decreased, or stayed the same after they were placed in the room-temperature water? Why?

6. You saw an animation of a metal spoon placed in hot soup. After the spoon was placed in the hot soup, the motion of the atoms in the metal spoon:

• increased
• decreased
• stayed the same

7. You saw an animation of a metal spoon placed in hot soup. After the spoon was placed in the hot soup, the motion of the molecules in the soup:

• increased
• decreased
• stayed the same

8. You saw an animation of a hot metal spoon placed in room-temperature water. After the spoon was placed in the water, describe how the speed of the atoms in the metal spoon changed and how the speed of the molecules of the water changed.

9. In the animation, you saw a finger touch metal and cardboard which were both at room-temperature. The metal felt cold, but the cardboard didn’t feel as cold. If metal is better at conducting heat than cardboard, explain why the metal feels colder than the cardboard when they are the same temperature?

10. In the animation, what did the color of a particles tell you?

• the size of the particle
• the type of particle
• the speed of the particle
• the mass of the particle