PHYS-1031-Sections 11, 12 and 13 QUIZN Name Nestne Chinna 1 Prefixes are frequen

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PHYS-1031-Sections 11, 12 and 13 QUIZN Name Nestne Chinna 1 Prefixes are frequently used to create units which are orders of magnitude larger or smaller than the basic unit. Please order popular prefiwes in ascending order (smallest first) by putting numbers 1, 2,,6 nest to prefixes centh, nano, e tera, pico, mikro,3 5 2 Which of the graphs of pouition against time represents motion with constant acceleration? 3. What is the total displacement of the object, that has velocity changing in time as in the following eraph over the period of time between Oand 2s: t (s) a) c) negative? 4. Which statement about free falling objects is true (disregarding air resistance)? a) Objects with larger mass accelerate faster, because they are attracted by the Earth stronger b) Objects with smaller density fall with smaller acceleration (extreme case is a balloon with hellum which does not fall at all -just opposite, moves upwards) c) Everything falls with the same acceleration, even dust particles False 6. Positive velocity implies that the displacement is positive as well. 7. If the acceleration is positive the velocity must be positive as well. & Displacement is represented by the area under which graph? True (a) displacement versus time (b) velocity versus time cjacceleration versus time What is the sign of acceleration for the motion depicted below? 9. (a) positive b)negative 10. Which graphs of the velocity versus time match the graph of the acceleration versus time? 11. Two vectors A and B are given, Indicate vector C-A-2B 12. (bonus. Physical quantity which describes the change of acceleration is called (a) boost, b) acceleration of acceleration, (c) jerk, (d) There is no name for this quanity, because it seless

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