Temperature

TEMPERATURE• Fahrenheit (oF)• Celsius (oC)• Kelvin (K)

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

UNITS OF MEASURE

Fahrenheit or oF

Celsius or oC

Kelvin or K

All positive numbers

Easier to work with

0 K= absolute zero

The point when all motion stops

CONVERSION FORMULAS:

Fahrenheit Celsius oF= (1.8 x oC) + 32

Celsius Fahrenheit oC= .556 x (oF – 32)

Kelvin Celsius K= oC + 273

Celsius Kelvin oC = K - 273

EXAMPLES What is 45oF in oC? Formula= oF = (1.8oC X oC) + 32

What is 42oC in oF? Formula= oC= .556 x (oF -32)

What is 60oC in K? Formula= oC = K – 273

What is 50 K in oC? Formula= K = oC + 273

YOU TRY (SHOW YOU WORK!) Work with your partner, then check with your table

35oF = _____ oC

72oC = _____ oF

345 K = _____ oC

67oC = _____ K

56oF= ______K

491K= ________oF

HOMEWORK

1.) 72oF oC and K

2.)

3.) Advantages of Kelvin