1AcQuiz1 - Physics 1A (c) Fall 2006: Quiz 1 Version D 1...

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Version D 1 09.29.06 Closed book. No work needs to be shown for multiple-choice questions. 1 . A right triangle has sides 5.0 m, 12 m, and 13 m. The smallest angle of this triangle is nearest: a. 43 o . b. 21 o . c. 23 o . d. 15 o . 2 . An automobile driver puts on the brakes and uniformly decelerates from 30.0 m/s to zero in 10.0 s. What distance does the car travel in those 10.0 s? a. 196 m b. 150 m c. 392 m d. 336 m 3 . In one-dimensional motion where the direction is indicated by a plus or minus sign, the average velocity of an object has which of the following properties? a. It is positive. b. It is negative. c. It is zero. d. It can be positive, negative, or zero. 4 . If a is acceleration, v is velocity, x is position, and t is time, then which equation is not dimensionally correct? a. v = a/t b. a = v 2 /x c. t = x/v d. t 2 = 2x/a 5 . A physics class in a large lecture hall has 150 students. The total mass of the students is about ______ kg (2.2 lbs is equivalent to a 1kg mass on Earth). a. 10
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This note was uploaded on 07/25/2009 for the course PHYS Phys1a taught by Professor Schones during the Fall '09 term at UCSD.

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1AcQuiz1 - Physics 1A (c) Fall 2006: Quiz 1 Version D 1...

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