Understanding Temperature and Its Impact on Daily Life
Unit 2 Heat: Chapter 4 focuses on temperature and how it affects our daily lives. It describes temperature as an indicator of how hot or cold something is and explores why we feel
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About Understanding Temperature and Its Impact on Daily Life
PowerPoint presentation about 'Understanding Temperature and Its Impact on Daily Life'. This presentation describes the topic on Unit 2 Heat: Chapter 4 focuses on temperature and how it affects our daily lives. It describes temperature as an indicator of how hot or cold something is and explores why we feel. The key topics included in this slideshow are . Download this presentation absolutely free.
Slide1Unit 2: HeatChapter 4: Temperature describes how hot or cold an object is.
Slide2How does temperature affect your daily life? Why do you feel warm playing outside on a cold winter’s day?
Slide3Place one hand incold water, one hand in “hot” water for 1 minute. Then at the same time put both hands in the luke warm water. Describe what each hand feels.
Slide4How hot or cold something is
Slide6The human body
Slide7Boiling point of water Freezing Point of water
Slide8Comfortable room temperature
Slide91. Galileo’s AirThermoscope : As the air heats, the liquids drops and rises when air is cooled. Early Thermoscopes...
Slide102. Early LiquidThermometer : Liquid rising up the tube shows the temperature is rising.
Slide11Activity 4-1A“Building a Thermoscope” Page 121
Slide12Scales are necessary for temperatures to be accurate and comparable.
Slide133 commonly used scalesare: 1. Fahrenheit 2. Celsius 3. Kelvin
Slide14Developed by Daniel Fahrenheit The first to be widely used
Slide15Developed by Anders Celsius. Based on the freezing and boiling points of water.
Slide16Developed by William Thomson (Lord Kelvin) Scale starts that the coldest temperature possible – absolute zero (-273 ˚ C)
Slide181. The Liquid-in-glassThermometer The lab thermometer contains colored alcohol rather than mercury for safety.
Slide192. The Thermocouple Made of two wires of different metals. A temperature difference causes a current to flow through the wires. This current is measured by a meter.
Slide20Can measure higher temperatures than typical thermometers.
Slide213. The ResistanceThermometer ( digital thermometers )
Slide224. Bimetallic Strip( thermostat ) Made of two different metals fused together. These metals expand and contract at different rates causing the strip to bend when heated.
Slide24Heating and Coolinga Bimetallic Strip
Slide255. Infrared Thermometer( thermogram ) Converts infrared radiation into colors that can interpret a temperature difference.
Slide26Can beused to measure heat loss in your home