Unit Conversion, Significant Digits and Scientific Notation Review 1.Make the following unit conversions: (a) 0.00245 km to m (b) 7 365 226 µN to N (c)

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Presentation transcript:

Unit Conversion, Significant Digits and Scientific Notation Review 1.Make the following unit conversions: (a) km to m (b) µN to N (c) g to Mg 2.Determine the number of significant digits: (a)0.694 (b) (c)1504 (d)36000 (e) State the number in scientific notation and proper significant digits: (a) to 2 s.d. (b) to 3 s.d. (c) x 10 5 to 4 s.d. With a partner: 4.Create one multiplication/division question 5.Create one addition/subtraction question **** you must know the answer to your question!

Unit 1 - Kinematics In this unit you will be able to: 1.Define and describe motion concepts such as distance, displacement, speed, velocity, and acceleration 2.Interpret patterns observed on various types of motion graphs 3.Apply equations relating the variables associated with kinematics 4.Use vector diagrams to analyze motion in two dimensions 5.Solve various types of projectile motion problems

Kinematics Kinematics – the study of motion Motion – when an object is continuously changing its position with respect to its surroundings There are two basic types of motion: 1.Uniform motion – motion in a straight line at a constant speed (not common) 2.Non-uniform – change in speed, direction or both (very common) 1.1 Prac. #1

QuantityQuantity SymbolSample UnitUnit Symbol distancedmillimeter centimeter metre kilometre mm cm m km timetsecond minute hour year s min. h a speedvmetres per second kilometre per hour m/s km/h Converting Speed Units m/s → km/h x 3.6 km/h → m/s ÷ Prac. #6-11 UC #1