quiz4 - QUIZ 4: NEWTON'S LAWS...

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Unformatted text preview: QUIZ 4: NEWTON'S LAWS Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A golf club hits a golf ball with a force of 2400 N. The golf ball hits the club with a force 1) ______ _ A ) s l i g h t l y m or e th an 24 00 N. c l ose to 0 N. exactly 2400 N. D) slightly less than 2400 N. E) Cannot be determined without additional information. 2) What does the word "normal" mean in the phrase "normal force"? 2) ______ _ A ) t h e f o r c e t h a t is us ua lly ex ert ed by a su rf ac e t h e c o m p o n ent of the force exerted by a surface perpend icular to the surface the force is due to contact between two objects. D) the component of the force exerted by a surface parallel to the surface E) the total force exerted by a surface 3) Action- reaction forces are 3) ______ _ A ) e q u a l i n m a g n i t u de an d po int in th e sa m e di re cti on . e q u a l i n magnit ude and point in opposit e directio ns. unequal in magnitude and point in opposite directions. D) unequal in magnitude but point in the same direction. 4) A 45- kg person steps on a scale in an elevator. The scale reads 460 N. What is the elevator doing? Assume g = 9.81 m/ . 4) ______ _ A ) I t i s e i t h e r a t r es t or m ov in g wi th co ns ta nt ve lo cit y I t i s acceler ating downw ard It is at rest D) It is moving with constant velocity E) It is accelerating upward F) Impossible to tell 5) A person has a mass of 45 kg. How much does she weigh on the Moon, where g = 1.62 m/ ? 5) ______ _ A ) 220 N B) 7.4 N C) 73 N D) 440 N E) 4 5 N You apply the same force to two objects. Object 1 has mass M and object 2 has mass 5 M . The accelerati on of object 2 is 6)...
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quiz4 - QUIZ 4: NEWTON'S LAWS...

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