Item NG022003: When water that is 40ºF is poured into a cup that is 70ºF, thermal energy is transferred from the cup to the water until they reach the same temperature.
The temperature of a plastic cup is 70ºF. It is filled with water that is 40ºF. Which of the following describes how thermal energy is transferred?
- Thermal energy is transferred from the water to the cup until they are both at 45ºF.
- Thermal energy is transferred from the cup to the water until they are both at 45ºF.
- Thermal energy is transferred from the cup to the water until the cup is at 60ºF and the water is at 50ºF.
- No thermal energy is transferred between the cup and the water, so the cup will stay at 70ºF and the water will stay at 40ºF.
- Distribution of Responses
![Chart showing distrubtion of responses for Item CL022003](http://chart.apis.google.com/chart?chs=265x180&cht=bvg&chf=bg,s,00000000&chco=76A4FB|339933|76A4FB|76A4FB&chds=0,100&chd=t:23,35,30,12&chxl=0:|A|B|C|D&chxt=x,y&chbh=a&chbw=a&chm=N*f0*%,000000,0,-1,11,,e::5&filename=CL022003-dist.png)
- Students Responding Correctly
Group | Correct | Total | Percent |
---|---|---|---|
Overall | 1044 | 3015 | 35% |
Grades | |||
6–8 | 564 | 1843 | 31% |
9–12 | 478 | 1162 | 41% |
Gender | |||
Male | 496 | 1447 | 34% |
Female | 531 | 1509 | 35% |
Primary Language | |||
English | 944 | 2709 | 35% |
Other | 73 | 222 | 33% |