6Standard Prefixes Use prefixes for large and small numbers Table 1-3 Commonly used prefixesgiga, mega, kilocenti, milli, micro, nana, pico
7Significant 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.
8Scientific NotationCan indicate the number of significant numbers
9Significant FiguresExamples 5 and 6.See if you understand them.
10Significant 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.
50Free falling: uniformly accelerated motion Let downward vector quantities be negativea = -g
51Free falling: uniformly accelerated motion a = -g
52Free falling: uniformly accelerated motion Example 18
53Parabolic 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.
54Monkey and Hunter Experiment electromagnetgunaluminiumfoilbulletiron ball
55Monkey and Hunter Experiment electromagnetgunaluminiumfoilbulletiron ballThe bullet breaks the aluminium foil.
56Monkey and Hunter Experiment electromagnetgunbulletiron ballBullet moves under gravity.Iron ball begins to drop.
57Monkey and Hunter Experiment electromagnetgunbulletBullet is moving under gravity.Iron ball is dropping under gravity.