It is a change of 25 units.
In a normal clinical thermometer, the mercury moves up and down the capillary tube as the temperature changes and thus if you removed it from contact with the patient the reading would steadily fall as it cooed. As you need a clinical thermometer to give you a reading of the patients temperature even after it has been removed from the patient, you need to stop the mercury shrinking back into the reservoir. The 'kink' breaks the connection between the mercury in the capillary tube and the reservoir so the reading given is accurate. On the other hand before it can be used again the mercury in the capillary tube has to be vigorously shaken back into the reservoir.On a point of interest, clinical thermometers are getting very rare because they have been phased out due to concerns regarding mercury poisoning should they break in use.
The narrower the bore the less liquid (mercury or alcohol) is required so the bulb containing the fluid will adjust more quickly to the temperature being measured. o.k well the narrower bore makes the liquid move slower up the thermometer so the accuracy is better ?????
use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.
Most dial thermometers use a bimetal spring to drive the pointer on the the thermometer face. Two metals are laminated together and wound to form the spring. One metal expands (or contracts) more rapidly than the other due to temperature changes. As the spring's shape changes the pointer moves accordingly. Another type of dial thermometer uses temperature-sensitive gas in a sealed tube to drive the point.
heat energy
because the more an object moves the higher the energy is making the temperature increase as well
no
In a normal clinical thermometer, the mercury moves up and down the capillary tube as the temperature changes and thus if you removed it from contact with the patient the reading would steadily fall as it cooed. As you need a clinical thermometer to give you a reading of the patients temperature even after it has been removed from the patient, you need to stop the mercury shrinking back into the reservoir. The 'kink' breaks the connection between the mercury in the capillary tube and the reservoir so the reading given is accurate. On the other hand before it can be used again the mercury in the capillary tube has to be vigorously shaken back into the reservoir.On a point of interest, clinical thermometers are getting very rare because they have been phased out due to concerns regarding mercury poisoning should they break in use.
The vibration of particles increase with the temperature.
The narrower the bore the less liquid (mercury or alcohol) is required so the bulb containing the fluid will adjust more quickly to the temperature being measured. o.k well the narrower bore makes the liquid move slower up the thermometer so the accuracy is better ?????
there could be a temperature change, or a physical change.
use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.
In a normal Mercury thermometer, the mercury moves up and down the capillary as the temperature changes and thus if you removed it form contact with the patient the reading would steadily fall as it cooed. As you need a medical thermometer to give you a reading of the patients temperature even after it has been removed form the patient, you need to stop the mercury shrinking back into the reservoir. The 'kink' does this, it breaks the connection between the mercury in the capillary and the reservoir so the reading given is accurate. On the other hand before it can be used again the mercury in the capillary has to be vigorously shaken back into the reservoir. On a point of interest, clinical mercury thermometers (with the 'kink') are getting very rare because they have been phased out due to concerns regarding mercury poisoning should hey break in use.
Yes, it can. When a cold front moves in, the temperature can drop suddenly and dramatically. This is the sort of temperature change that can precipitate storms and tornadoes.
Most dial thermometers use a bimetal spring to drive the pointer on the the thermometer face. Two metals are laminated together and wound to form the spring. One metal expands (or contracts) more rapidly than the other due to temperature changes. As the spring's shape changes the pointer moves accordingly. Another type of dial thermometer uses temperature-sensitive gas in a sealed tube to drive the point.
It is because the Earth moves in relation to the sun and because of the movement of air.
The answer is 7