1. Chapter 3.2 Vocabulary International System of Units (SI) Meter Liter Kilogram Gram

2. International System of Units (SI) – The revised version of the metric system, adopted by international agreement in 1960 – The metric system of measurement is based on multiples of 10

3. Meter (m) the base unit of length or distance in SI

4. Liter (L) – The common unit of volume in the metric system – The volume of a cube measuring 10 centimeters on each edge (1000 cm3)

5. Kilogram (kg) The base unit of mass in SI The mass of 1 L of water at 4°C

6. Gram (g) Common unit of measure for mass and weight a metric mass unit equal to the mass of 1 cm3 of water at 4°C

7. Chapter 3.2 Vocabulary Energy Joule Calorie

8. Energy the capacity for doing work or producing heat Units can be measured in joules or calories – plus kJ or kcal

9. Joule (J) The SI unit of energy 1 J = 0.2390 cal

10. Calorie (cal) The quantity of heat needed to raise the temperature of 1 g of pure water 1°C 1 cal = 4.184 J

11. Chapter 3.2 Vocabulary Temperature Celsius scale Kelvin scale

12. Temperature The measure of how hot or cold something is A measure of the average kinetic energy of particles in matter Units of temperature can be K, °C or °F

13. Celsius scale The temperature scale in which the freezing point of water is 0°C and the boiling point is 100°C °C = K – 273 °C = 5/9(°F-32)

14. Kelvin scale The temperature scale in which the freezing point of water is 273 K and the boiling point is 373 K 0 K is absolute zero K = °C + 273