PPT Slide

• Force has the SI base units of mass times acceleration:

7

• Work done on a mass is force (F) times the distance (d) the mass  travels.

• The calorie (cal) was defined originally as the amount of energy  needed to raise the temperature of one gram of water by 1ƒC.

• The energy changes in chemical reactions are often large; use the  kilojoule (kJ):

Previous slide

Next slide

Back to first slide

View graphic version