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Rank the following in order of temperature
North pole in December Surface of the Sun Pluto Liquid Nitrogen Melting point of iron Earth’s core Freezing point for blood Brazil in August Melting point for oxygen Light bulb filament Mercury Sun’s core
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Filament of light bulb = 2550 ˚C Melting point of iron = 1538 ˚C
Sun’s core = ˚C Earth’s core = 7200 ˚C Sun’s surface = 6000 ˚C Filament of light bulb = 2550 ˚C Melting point of iron = 1538 ˚C Mercury = -184˚C to 427˚C Brazil in August = 24 ˚C Freezing point for blood = 0.8 ˚C North Pole in December = - 34 ˚C Liquid nitrogen = -196 ˚C Melting point of oxygen = ˚C Pluto = ˚C
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Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works
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Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works Which unit?
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He then put 180 evenly spaced marks between those two points!
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works Fahrenheit scale - Daniel Fahrenheit decided that the freezing and boiling points of water would be separated by 180 degrees. He chose the freezing water to be 32 degrees and made a thermometer, stuck it in freezing water and marked the level of the mercury on the glass as 32 degrees. Then he stuck the same thermometer in boiling water and marked the level of the mercury as 212 degrees. He then put 180 evenly spaced marks between those two points!
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He decided the freezing point of water should be 100 degrees.
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works Celsius scale - Anders Celsius decided that the freezing and boiling points of water would be separated by 100 degrees He decided the freezing point of water should be 100 degrees. (His scale was later inverted, so the boiling point of water became 100 degrees and the freezing point became 0 degrees.)
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Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works The Kelvin Scale This scale starts at absolute zero, below which is theoretically impossible. 0˚C on this scale is 273 K
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True or false? Sort out the particle ideas
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works True or false? Sort out the particle ideas
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What happens to the gas as the temperature increases
What happens to the gas as the temperature increases? Would this be the same for solids and liquids? The piston can be dragged however the gas particles will not move the piston if the temperature is increased.
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How does a bulb thermometer work?
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works How does a bulb thermometer work?
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A Bimetallic Strip as a Temperature Sensor
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works A Bimetallic Strip as a Temperature Sensor
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Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works A Lovely Cuppa! Mrs Smith often makes herself a cup of tea and then gets distracted. Would you advise Mrs Smith to put in her milk as soon as she pours the tea or wait until she is about to drink it? Carry out an appropriate experiment to support your answer.
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What else may affect how quickly Mrs Smith’s tea cools down?
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works What else may affect how quickly Mrs Smith’s tea cools down?
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Why do elephants have big ears?
Learning Objectives By the end of this lesson you should… Be able to describe what happens to the particles as the temperature of a substance increases Appreciate that thermal energy flows from warm regions to cooler ones Be able to describe how a thermometer works Why do elephants have big ears?
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