numericmotion7-18

numericmotion7-18 - TYPICAL NUMERIC QUESTIONS FOR PHYSICS I...

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TYPICAL NUMERIC QUESTIONS FOR PHYSICS I REGULAR QUESTIONS TAKEN FROM CUTNELL AND JOHNSON CONTENT STANDARD IB, IE MOTION 1. Which one of the following expressions may be used to correctly find the angle θ in the drawing? A) = cos 1 5 2 B) = tan 1 5 2 C) = sin 1 2 5 D) = tan 1 2 5 E) = sin 1 5 2 2. The length of each side of a square is 4.0 m. What is the length of the diagonal of the square (shown as a dashed line in the figure)? A) 2.8 m B) 3.5 m C) 5.7 m D) 8.0 m E) 16 m Page 1
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3. Which one of the following choices is a vector quantity? A) mass B) temperature C) time D) displacement E) volume 4. What is the angle between the vectors A and A when they are drawn from a common origin? A) 0° B) 90° C) 180° D) 270° E) 360° 5. A displacement vector has a magnitude of 810 m and points at an angle of 18° above the positive x axis. What are the x and y scalar components of this vector? x scalar component y scalar component A) 770 m 250 m B) 560 m 585 m C) 585 m 560 m D) 250 m 750 m E) 713 m 385 m 6. A displacement vector is 23 km in length and is directed 65° south of east. What are the components of this vector? Eastward Component Southward Component A) 21 km 9.7 km B) 23 km 23 km C) 23 km 0 km D) 9.7 km 21 km E) 0 km 23 km Use the following to answer question 7: The table gives the x and y components of two vectors A and B : 7. Determine the magnitude of the vector sum A + B . A) 5 units B) 15 units C) 20 units D) 30 units E) 50 units Page 2
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Use the following to answer question 8: A racecar, traveling at constant speed, makes one lap around a circular track of radius r in a time t . Note: The circumference of a circle is given by C = 2 π r. 8.
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This note was uploaded on 03/14/2011 for the course PHYSICS 105 taught by Professor Kruse,m during the Spring '08 term at Duke.

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numericmotion7-18 - TYPICAL NUMERIC QUESTIONS FOR PHYSICS I...

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