State whether the following statements are TRUE or FALSE.
1. Silver is good absorber of heat.
2. Temperature is the measure of degree of hotness and coldness.
3. Digital thermometers are used in laboratories to perform experiments.
4. Heat energy can pass through vacuum.
5. A kink is present in the clinical thermometer just above the bulb.
6. The melting point of pure water is taken as 32° in Fahrenheit scale.
7. Matter contracts on heating and expands on cooling
Answers
Answer:
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Explanation:
*true-As silver is a metal,it is usually a good conductor of heat and electricity. The Brainliest Answer! because it has free election and low intermolecular space which help it to absorb heat so it is a good conductor.
*True; The degree of hotness or coldness of any substance is called Temperature. Temperature is a physical quantity expressing hot and cold. The degree or intensity of heat present in a substance or object; especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
*false;A digital thermometer is used to take an oral temperature. It is a small hand-held device with a "window" showing your temperature in numbers. There are many kinds of digital thermometers. Most digital thermometers are easy to use and measure body temperature within seconds.
*false;Heat *does* pass through a vacuum in the form of radiation. ... This is generally conduction or convection (which both require physical contact between the hotter and cooler object) or radiation, which simply requires a path for radiation from one to the other.
*true;A kink in the tube stops the mercury level from falling on its own.
*true;On the Fahrenheit scale, the freezing point of water is 32 degrees Fahrenheit (℉) and the boiling point is 212 ℉ (at standard atmospheric pressure).
*false;matter expands while heating whereas it contracts while cooling
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Answer:
True; The degree of hotness or coldness of any substance is called Temperature. Temperature is a physical quantity expressing hot and cold. ... Most digital thermometers are easy to use and measure body temperature within secon