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Transcript
Forces and Motion SOL Review John goes over the top of a hill at a speed of 4m/s while on his bicycle. Four seconds later, his speed is 24m/s. What is John's acceleration? 25% 25% 25% 25% 1 2 3 4 5 m /s sq . sq . 5 m /s 16 20 m /s sq . D. m /s C. 6 B. sq . 20 m/s sq. 16 m/s sq. 6 m/s sq. 5 m/s sq. A. Forces that are equal in size and opposite in direction are: 1 2 3 4 5 ita gr av s tf or ce ne or c al f io n fr ic t ba la nc ed fo rc e s D. s C. lf or ce B. tio na balanced forces frictional forces gravitational forces net forces A. es 25% 25% 25% 25% Newton's first law of motion states that an object stays at rest unless a ____ acts on it. 1 2 3 4 5 tf or ce ne lf or ce or c al f io n fr ic t ba la nc ed fo rc e D. tio na C. ita B. gr av balanced force frictional force gravitational force net force A. e 25% 25% 25% 25% The rate of change of speed and/or the change in direction is called: acceleration average speed gravity velocity 1 2 3 4 5 ty lo ci e er ag av ac ce le r sp ee at io d n D. ve C. ity B. 25% 25% 25% 25% gr av A. The relationship among mass, force, and acceleration is explained by: conservation of momentum Newton's first law of motion Newton's second law of motion Newton's third law of motion 1 2 3 4 5 o. .. .. N la ew to n' s th ird nd co se w la w ... of s s ew to n' N co ns er va tio n fir st of m om ... D. la w C. ew to n' B. 25% 25% 25% 25% N A. Which of the following objects has the greatest inertia? baseball bowling ball pencil table-tennis ball ba ni s -te n ta 1 2 3 4 5 ll il ll ba g w lin bo ba se ba ll D. bl e C. nc B. 25% 25% 25% 25% pe A. As you climb a mountain, you get farther from the center of the earth. Your weight will: sa m cr ea e se 33% re m ai n de cr ea se C. 33% in B. 33% th e decrease increase remain the same A. 1 2 3 4 5 1 2 3 4 5 t ei gh w ity gr av er tia in fr ic t io n A person, in a head-on car collision, who is not wearing a seat belt, continues to move forward at the original speed of the car because of: A. friction 25% 25% 25% 25% B. inertia C. gravity D. weight The statement "for every action there is an equal and opposite reaction" is: the law of conservation of momentum Newton's first law of motion Newton's second law of motion Newton's third law of motion 1 2 3 4 5 o. .. .. w la th ird s ew to n' N N ew to n' s se fir st s co la w nd of la w ... ti. . rv a se co n ew to n' th e D. N C. of B. 25% 25% 25% 25% la w A. The acceleration due to gravity is: 98 m/s sq. 9.8 m/s sq. 9.8 m/s 0.98 m/s 1 2 3 4 5 m /s m /s 98 0. sq m /s 8 9. 98 m /s sq . D. 8 C. 9. B. 25% 25% 25% 25% . A. A 300N force is used to move an object 2M. The amount of work equals: 1 2 3 4 5 Nm Nm 25% 0 2 0 30 15 0 Nm D. 30 C. 25% Nm B. 25% 25% 60 150 Nm 300 Nm 302 Nm 600 Nm A. Two simple machines that are part of a bicycle are: A wheel an axle and a screw An inclined plane and a lever An inclined plane and a wedge A screw and an inclined plane 1 2 3 4 5 an d an d A sc re w in e in cl n A in cl an e pl an e pl an d in e i.. . ... d. . an ... an d n A A w he in cl el a D. le C. ax B. 25% 25% 25% 25% n A.