Physics test with answer

Jun 17th, 2015
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1. What is a hypothesis? Give and example of a hypothesis we stated during class this semester. A Hypothesis is an educated guess as to why things happen. Each project and lab activity has asked us to explain what we thing will happen in a variety of circumstances.

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Study Guide for Physics Final Exam1st semesterName__________________________Date___________________________1. What is a hypothesis? Give and example of a hypothesis we stated during class this semester.A Hypothesis is an educated guess as to why things happen. Each project and lab activity has asked us to explain what we thing will happen in a variety of circumstances.2. Measure the angle of this vector.East is 0o, North is 90o, West is 180o and South is 270oThis vector has an angle of about 250oSouthwest3. The teacher was pacing around the classroom. She started at Point A, moved to Point B, then stopped at point C. What is her displacement from Point A? Displacement is the most direct distance and direction between start and finish. Point A to Point C is about 4.5 meters southeast using the graphical method or c2 = a2 + b2 c2 = (4)2 + (2)2 c2 = 16 + 4 = 20 Square root= 4.54. A student walks 3 km east and then 8 km north. What is her displacement? Displacement is the most direct distance and direction between start and finish. Point A to Point C is about 8.5 km Northeast using the graphical method or c2 = a2 + b2 c2 = (8)2 + (3)2 c2 = 64 + 9 = 73 Square root= 8.55. A hiker travels south along a straight path for 9 km. He then turns west and goes 4 km. What is the hikers displacement?Displacement is the most direct distance and direction between start and finish. Point A to Point C is about 9.8 km Southwe

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