6 Standard Prefixes Use prefixes for large and small numbers Table 1-3 Commonly used prefixesgiga, mega, kilocenti, milli, micro, nana, pico
7 Significant FiguresThe number of digits between the Most significant figure and least significant figure inclusive.The leftmost non-zero digit is the most significant figure.If there is no decimal point, the rightmost non-zero digit will be the least significant figure.If there is a decimal point, the rightmost digit is always the least significant figure.
8 Scientific NotationCan indicate the number of significant numbers
9 Significant FiguresExamples 5 and 6.See if you understand them.
10 Significant Figures Multiplication or division. The least number of significant figures.Addition or subtraction.The smallest number of significant digits on the right side of the decimal point.
50 Free falling: uniformly accelerated motion Let downward vector quantities be negativea = -g
51 Free falling: uniformly accelerated motion a = -g
52 Free falling: uniformly accelerated motion Example 18
53 Parabolic Motion Two dimensional motion under constant acceleration. There is acceleration perpendicular to the initial velocityExamples:Projectile motion under gravity.Electron moves into a uniform electric field.
54 Monkey and Hunter Experiment electromagnetgunaluminiumfoilbulletiron ball
55 Monkey and Hunter Experiment electromagnetgunaluminiumfoilbulletiron ballThe bullet breaks the aluminium foil.
56 Monkey and Hunter Experiment electromagnetgunbulletiron ballBullet moves under gravity.Iron ball begins to drop.
57 Monkey and Hunter Experiment electromagnetgunbulletBullet is moving under gravity.Iron ball is dropping under gravity.