Questions about Thermometer,heat,internal energy

2008-08-09 11:35 pm
1.Water is not used as the liquid in a liquid-in-glass thermometer. Which of the following is not the reason?(And why?)
A. Water freezes at 0 degree Celsius.
B. Water boils at 100 degree Celsius.
C. Water is colourless.
D. Water does not expand uniformly between 0 and 100 degrees Celsius.

2.By considering properties that change with temperature, determine which of the following thermometers is different from the others(and why?).
A. Clinical thermometers. B. Rotary thermometers. C. Alcohol-in-glass thermometers. D. Thermistor thermometers.

3.A light bulb is connected to a joulemeter. When the light bulb is switched on, the reading of the joulemeter changes. Which of the following is measured by the joulemeter?(and why?)
A. Heat given off by the light bulb.
B. Internal energy of the light bulb.
C. Temperature of the light bulb.
D. Energy used by the light bulb.

4.Which of the following cannot increase the internal energy of a metal block?(and why?)
A. Heat a metal block. B. Hammer a metal block. C. Melt a metal block. D. Lift a metal block from the ground.

5.Which of the following is not a consequence of heating a gas of fixed volume?(give reason(s))
A. Temperature of the gas increases. B. Internal energy of the gas increases. C. Kinetic energy of the gas particles increases. D. Potential energy of the gas particles increases.

回答 (1)

2008-08-10 12:44 am
✔ 最佳答案
1. D
2. D
3. D
4. D
5. D

Given the answers, the reasons are obvious. You could be able to think them out.


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