1. TEMPERATURE Fahrenheit ( o F) Celsius ( o C) Kelvin (K)

2. TEMPERATURE IS…  Is a measure of average energy of motion of the particles of a substance.  The higher the temperature = the faster the particles are moving  The lower the temperature = the slower the particles are moving  Tool for measuring = thermometer

3. UNITS OF MEASURE  Fahrenheit or o F  Celsius or o C  Kelvin or K  All positive numbers  Easier to work with  0 K= absolute zero  The point when all motion stops

4. CONVERSION FORMULAS:  Fahrenheit  Celsius  o F= (1.8 x o C) + 32  Celsius  Fahrenheit  o C=.556 x ( o F – 32)  Kelvin  Celsius  K= o C + 273  Celsius  Kelvin  o C = K - 273

5. EXAMPLES  What is 45 o F in o C?  Formula= o F = (1.8 o C X o C) + 32  What is 42 o C in o F?  Formula= o C=.556 x ( o F -32)  What is 60 o C in K?  Formula= o C = K – 273  What is 50 K in o C?  Formula= K = o C + 273

6. YOU TRY (SHOW YOU WORK!)  Work with your partner, then check with your table  35 o F = _____ o C  72 o C = _____ o F  345 K = _____ o C  67 o C = _____ K  56 o F= ______K  491K= ________ o F

7. HOMEWORK  1.) 72 o F  o C and K  2.)

8.  3.) Advantages of KelvinAdvantages of Kelvin