Presentation on theme: "Temperature I. Definition- the quantity that tells united state how hot or cold something is (compared to something else) II. It is expressed by a number on a scale."— Presentation transcript:
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1 Temperature I. Definition- the amount that tells united state how hot or cold something is (compared to something else) II. It is express by a number top top a range
2 Temperature nearly all matter increases when its temperature increasesIV. The usual thermometer actions temperature by showing the expansion or contraction of a fluid
3 Temperature There are 3 common temp scalesFahrenheit- supplied in the United claims Celsius- most typically used (lab and the world) Kelvin- used in scientific study
4 A poem 30 is hot 20 is pretty 10 put a coat on Zero is ice cream
5 Temperature Conversions
6 Review What space absolute zero because that Kelvin? Celsius?What space the freezing points the water because that Fahrenheit?
7 Review What room the boiling point out of water because that Kelvin? Celsius?Fahrenheit? 4) What is common body temp in Celsius?
8 Review i m sorry temp is correct? a) 37°F b) -2°C c) 300 Ka) 40°C b) 98.6° F c) 37°C a) 40°F b) 275 K c) 30°C
9 Temperature and Kinetic Energy
10 States that Matter and also Kinetic Energy
11 Remember… the KE is the power of motionTemperature is concerned the force and the quantity of collisions the happen in between atoms…both boost
12 warm Definition- the energy that move from one thing to an additional b/c the a temperature distinction
13 Temperature and Heat room related…but being related doesn’t make you the exact same
14 Temperature and also Heat are related…Temperature and also Heat room related….but being connected doesn’t do you the very same
15 Temperature and also Heat are relatedTemperature is concerned the mean kinetic power of the corpuscle in a substance.
16 Heat If friend touch a warm stove…energy will go into your handIf you touch ice, power will pass the end of her hand when in contact with each other…Energy always passes indigenous the warmer come the cooler substance
17 Heat Why walk the energy move at all?It will shot to acquire thermal equilibrium once a thermometer is in contact with a substance, the power flows till the thermometer is the exact same temp Sooo, the thermometer is now showing it’s very own temp
18 Why aren’t the earth and sun in equilibrium with each other?
19 Unit of warmth In the metric system, warm is measure up in devices of calories, i beg your pardon are defined as the quantity of heat compelled to progressive the temperature of one gram that water indigenous 14.5oC come 15.5oC.
20 Calculating calorie in food…burn the food, measure the power that is released together heatThe reaction"s power is uncovered by individually the early temperature indigenous the final, then multiplying by the amount of water used, in this case, 100 mL.
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If the early temperature is 24 levels C and the final is 26 degrees C, we get ( ) x 100 = 200 calories. FYI - Btu (Bristish thermal systems ) space the amount of heat forced to change the temperature the 1 lb of water by 1° F, which is provided in heating and also a/c
21 Unit of warmth In the SI system, i beg your pardon is the modern metric device (1960)….the unit of warm is a Joule just as 1 day= 24 hours , 1 calorie = J us will usage both Joule and calorie in our next calculations