"Temperature and Thermometer" Temperature and changes in physical state PPT courseware 3

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"Temperature and Thermometer" Temperature and changes in physical state PPT courseware 3

1. Wonderful water

The shape of water is different and ever-changing. It can not only turn into ______, _____, _____, but also turn into _____, _____, _____, etc.

2. Water Journey

1. The three states of water are ______, ______ and ______. Under certain conditions, the three states can be ______.

2. Water journey: The sun's irradiation causes the surface water temperature to rise, and the hot air containing ______ rises rapidly. The air gradually ______, and the water vapor condenses into ______ or ______ to form clouds. When small water droplets in clouds merge into larger water droplets, ______ occurs.

3. Temperature and thermometer

1. Temperature: represents the ________ of an object. The commonly used temperature unit in life and production is ________, with the symbol "________". The normal body temperature of a human being is approximately ________℃.

2. Thermometer

(1) People use ________ to measure the temperature of objects.

(2) Principle of temperature measurement: Commonly used thermometers are made by utilizing the ________ properties of liquids.

3. Thermodynamic temperature scale: The temperature scale used in the International System of Units is the thermodynamic temperature scale. Its unit is ________, referred to as ________, and its symbol is "_______". The conversion relationship between thermodynamic temperature and Celsius temperature is ________.

thermometer

(1) Working principle: The nature of liquid expansion with heat and contraction with cold.

(2) Classification: According to the types of temperature-measuring substances in thermometers, they can be divided into mercury thermometers, kerosene thermometers and alcohol thermometers; according to their uses, they can be divided into experimental thermometers, thermometers, thermometers (temperature measurement, etc.).

(3) Correct usage:

① The glass bulb of the thermometer should be completely immersed in the liquid being measured, and do not touch the bottom or wall of the container.

② Wait for a while after the glass bulb of the thermometer is immersed in the liquid to be measured, and then take a reading after the thermometer's indication is stable.

③When reading, the glass bubble should remain in the liquid being measured, and the line of sight should be level with the liquid level of the liquid column in the thermometer.

Knowledge point 1 Temperature

1. In the "Decision of the State Council on Energy Saving Work", there are clear requirements for the temperature setting of air conditioners in public buildings. In order to achieve the purpose of energy conservation and emission reduction, do you think the indoor temperature setting requirements of the "Decision" are ()

A. Not lower than 26 ℃ in summer and not higher than 20 ℃ in winter

B. Not higher than 26 ℃ in summer and not higher than 20 ℃ in winter

C. Not lower than 26 ℃ in summer and not lower than 20 ℃ in winter

D. No higher than 26 ℃ in summer and no lower than 20 ℃ in winter

2.0 ℃ ice compared to 0 ℃ water ()

A. Ice at 0 ℃ is cooler than water at 0 ℃

B. Water at 0 ℃ is colder than water at 0 ℃

C. Ice at 0°C and water at 0°C are equally hot and cold.

D.Cannot be compared

3. Doctors often diagnose illnesses by checking a person’s body temperature. The normal body temperature of ordinary people is about _______. There is a suspected case of cold. His body temperature is 38 ℃, pronounced as _______.

Knowledge Point 2 Thermometer

4. Intern reporter Yuan Jun made secret visits to some small clinics in the community. The thermometers in the small clinics were used in turn without being disinfected. Medical staff remind: Thermometers must be disinfected before use. To disinfect a thermometer, which of the following methods is feasible ()

A. Boil in boiling water

B. Soak in warm water

C. Scrub with alcohol cotton ball

D. Rinse with clean tap water

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For more information about the PPT courseware "Temperature and Changes in State of Matter Temperature and Thermometer", please click on the Temperature and Changes in State of Matter ppt Temperature and Thermometer ppt tag.

"Temperature and Thermometer" Temperature and changes in physical state PPT courseware 2:

"Temperature and Thermometer" Temperature and Physical State Changes PPT Courseware 2 1. Water Journey 1. How does water change? Put ice into a kettle, then heat it and observe the changes in the ice. Keep heating until the water boils, hold a spoon close to the spout. Through observation, it can be seen that during heating...

"Temperature and Thermometer" Temperature and changes in physical state PPT courseware:

"Temperature and Thermometer" Temperature and Changes in Physical State PPT Courseware 1. Talking about the Journey of Water Clouds have different shapes. Do you know where the cloud comes from? Rain, where does it come from? Where is it drifting to? Legend has it that the flying snowflakes come from the feather pillow of Mother-in-law in the sky. Do you believe it? ..

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Update Time: 2024-07-26

This template belongs to Physics courseware Shanghai Science Edition Ninth Grade Physics industry PPT template

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