Question
A student observed that the outside of a cup got warmer when it was filled with a hot beverage. The student then performed an investigation to observe the effect a hot object would have on room-temperature water.
• The student started by placing a thermometer and 30 milliliters (mL) of water inside a cup.
• The student also boiled 150 mL of water in a beaker and then removed the beaker from the heat source.
• The student then tied metal washers to a string and took their temperature to ensure they were at room temperature by placing a thermometer on the metal washers.
• The student then lowered the washers into the beaker of water as shown in Figure 1.
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The student left the washers in the beaker of water for 15 minutes and then carefully removed them. The student placed a thermometer on the metal to take the temperature before adding them to the cup of water. The student lowered the washers into the water in the cup.
(a)
The student used Table 1 to record the temperatures of the washers and of the water in the cup after the washers were placed in the cup. However, the student forgot to label the table.
Determine which temperatures represent each material in Table 1.
5a432774-33a6-40c9-88ba-e945216daa4a
Drag the top of each bar to the correct height.
temperature(°C)
Water inthe cup(30s)
Washers(30s)
Water inthe cup(60s)
Washers(60s)
Water inthe cup(90s)
Washers(90s)
100
92
84
76
68
60
52
44
36
28
20
Time Elapsed(seconds)
(b)
Describe the data.
Complete the sentence by choosing the correct answers from the drop-down menus.
As the experiment goes longer than 90 seconds, the temperature of the water in the cup will
, and the temperature of the washers will
.This will continue
.
• The student started by placing a thermometer and 30 milliliters (mL) of water inside a cup.
• The student also boiled 150 mL of water in a beaker and then removed the beaker from the heat source.
• The student then tied metal washers to a string and took their temperature to ensure they were at room temperature by placing a thermometer on the metal washers.
• The student then lowered the washers into the beaker of water as shown in Figure 1.
f6541ce0-4ed3-42e4-9ef7-cc7932b98b46
The student left the washers in the beaker of water for 15 minutes and then carefully removed them. The student placed a thermometer on the metal to take the temperature before adding them to the cup of water. The student lowered the washers into the water in the cup.
(a)
The student used Table 1 to record the temperatures of the washers and of the water in the cup after the washers were placed in the cup. However, the student forgot to label the table.
Determine which temperatures represent each material in Table 1.
5a432774-33a6-40c9-88ba-e945216daa4a
Drag the top of each bar to the correct height.
temperature(°C)
Water inthe cup(30s)
Washers(30s)
Water inthe cup(60s)
Washers(60s)
Water inthe cup(90s)
Washers(90s)
100
92
84
76
68
60
52
44
36
28
20
Time Elapsed(seconds)
(b)
Describe the data.
Complete the sentence by choosing the correct answers from the drop-down menus.
As the experiment goes longer than 90 seconds, the temperature of the water in the cup will
, and the temperature of the washers will
.This will continue
.
Answers
GPT-4o mini
(a) To determine which temperatures represent each material in Table 1, we analyze the expected behavior of both the washers and the water in the cup over time.
- **Washers (initially added to hot water):** The washers, being metal and at room temperature, will initially absorb heat from the hot water (150 mL) they were in. As they are introduced into cooler water (30 mL in the cup), we expect the temperature of the washers to decrease, as they will transfer heat to the cooler water.
- **Water in the cup:** The temperature of the water in the cup (30 mL) will initially be lower (room temperature) and will gradually rise as it absorbs heat from the washers.
Based on the above analysis, we would expect the temperatures for Table 1 to look something like this:
- **Washers (30 seconds):** The temperature of the washers would be decreasing after they were removed from the beaker of hot water, so it would likely be higher than the cup water.
- **Water in the cup (30 seconds):** Initially lower than the washers.
- **Washers (60 seconds):** The temperature would likely continue to decrease as they lose heat to the cup water but would still be warmer than the water in the cup.
- **Water in the cup (60 seconds):** The temperature would be higher than at 30 seconds as it gains heat from the washers.
- **Washers (90 seconds):** Continuing to cool down, their temperature would be lower than at previous times.
- **Water in the cup (90 seconds):** This should be at its highest temperature yet, as it has absorbed heat from the washers.
To set the approximate temperatures in Table 1 based on logical reasoning, it might look like this:
- Washers (30s): 84°C
- Water in the cup (30s): 28°C
- Washers (60s): 76°C
- Water in the cup (60s): 36°C
- Washers (90s): 68°C
- Water in the cup (90s): 44°C
(b) For the descriptive sentence, it would be completed as follows:
As the experiment goes longer than 90 seconds, the temperature of the water in the cup will **continue to rise**, and the temperature of the washers will **continue to decrease**. This will continue **until thermal equilibrium is reached** (or until both temperatures stabilize).
### Note:
Please modify according to the specific heights from your Table 1, which are not visible in this context. The provided temperatures are illustrative and based on the implied scenario mentioned.
- **Washers (initially added to hot water):** The washers, being metal and at room temperature, will initially absorb heat from the hot water (150 mL) they were in. As they are introduced into cooler water (30 mL in the cup), we expect the temperature of the washers to decrease, as they will transfer heat to the cooler water.
- **Water in the cup:** The temperature of the water in the cup (30 mL) will initially be lower (room temperature) and will gradually rise as it absorbs heat from the washers.
Based on the above analysis, we would expect the temperatures for Table 1 to look something like this:
- **Washers (30 seconds):** The temperature of the washers would be decreasing after they were removed from the beaker of hot water, so it would likely be higher than the cup water.
- **Water in the cup (30 seconds):** Initially lower than the washers.
- **Washers (60 seconds):** The temperature would likely continue to decrease as they lose heat to the cup water but would still be warmer than the water in the cup.
- **Water in the cup (60 seconds):** The temperature would be higher than at 30 seconds as it gains heat from the washers.
- **Washers (90 seconds):** Continuing to cool down, their temperature would be lower than at previous times.
- **Water in the cup (90 seconds):** This should be at its highest temperature yet, as it has absorbed heat from the washers.
To set the approximate temperatures in Table 1 based on logical reasoning, it might look like this:
- Washers (30s): 84°C
- Water in the cup (30s): 28°C
- Washers (60s): 76°C
- Water in the cup (60s): 36°C
- Washers (90s): 68°C
- Water in the cup (90s): 44°C
(b) For the descriptive sentence, it would be completed as follows:
As the experiment goes longer than 90 seconds, the temperature of the water in the cup will **continue to rise**, and the temperature of the washers will **continue to decrease**. This will continue **until thermal equilibrium is reached** (or until both temperatures stabilize).
### Note:
Please modify according to the specific heights from your Table 1, which are not visible in this context. The provided temperatures are illustrative and based on the implied scenario mentioned.