PHYSICS~thermometers

2010-02-11 8:05 am
Plz fill in the blank:
1.Rotary thermometer
~As the temperature ises, the uneven _________ of the bimetallic strip moves a point around a temperature scale

2.Freezer thermometer
~Range:___℃to___℃

3.Infra-red thermometer
~Range:___℃to___℃
~As the temperature rises, more _______ is emitted by the body and is detected by the termometer

thx very much~!!!

回答 (1)

2010-02-12 4:33 am
✔ 最佳答案
1. expansion
2. -30'C to +20'C (this is a typical value, it may vary on different brands)

3. -50'C to 500'C (again, it may vary depending on different brands)
infrared radiation



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