Exam:1 chapters 1-5 PDF

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Exam 1 based on chapters 1-5. Total number of questions: 25. Answers located on the last page....

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Exam Name___________________________________

MULTIPLE CHOICE. Choose the one alternative that best complete

1) What is the result of 1.58 ÷ 3.793 written with the cor

figures?

A) 4.2 × 10-1

B) 4.166 × 10 -1

C) 4.17 × 10 -1 D) 4 × 10-1

E) 4.1656 × 10-1

2) The acceleration of an object as a function of time is g

t is in seconds. If the object is at rest at time t = 0.00 s at time t = 6.00 s? A) 0.00 B) 54.0 C) 15.0 m/s m/s m/s

3) A toy rocket is launched vertically from ground level

The rocket engine provides constant upward accelerat instant of engine burnout, the rocket has risen to 72 m 30 m/s. The rocket continues to rise in unpowered flig falls back to the ground with negligible air resistance.

7) The exhaust fan on a typical kitchen stove pulls 600 C

through the filter. Given that 1.00 in. = 2.54 cm, how does this fan pull? A) 3.05 m3 /sec B) 0.283 C) 0. m3 /sec m 8) If, in a parallel universe,  has the value 3.14149, exp

significant figures. A) 3.141

B)

3.142

C)

3.

9) Object A has a position as a function of time given by ^ ^ (3.00 m/s)t i + (1.00 m/s2)t2j. Object B has a position ^ ^ r B (t) = (4.00 m/s)ti + (-1.00 m/s 2)t2j. All quantities a

between object A and object B at time t = 3.00 s? A) 15.0 m B) 3.46 m C) 34.6 m 10) An object has a position given by r = [2.0 m + (5.00 m

where quantities are in SI units. What is the speed of t A) 6.40 B) 7.65 C) 9.43 m/s m/s m/s 11) An electron moves with a constant horizontal velocity

vertical velocity as it enters a deflector inside a TV tub

13) A rock is thrown at a window that is located 18.0 m a

thrown at an angle of 40.0° above horizontal. The roc m above the ground with a speed of 30.0 m/s and exp resistance. If the rock strikes the window on its upwar distance from the window was it released? A) 71.6 m B) 29.8 m C) 27.3 m 14) A series of weights connected by very light cords are

4.00 m/s2 by a pull P, as shown in the figure. A, B, an connecting cords. The pull P is closest to

16) A block is on a frictionless horizontal table, on earth.

when a 90 N horizontal force is applied to it. The bloc moon where the acceleration due to gravity is 1.62 m/ applied to the block when it is on the moon. What acc the block? A) 1.8 m/ B) 2.3 m/ C) 1.6 m/ s2 s2 s2 17) Two forces act on a 55-kg object. One force has magn

clockwise from the positive x-axis, and the other has a clockwise from the positive y-axis. What is the magni A) 1.7 m/s 2 B) 1.3 m/s 2 C) 1. 18) The figure shows an acceleration-versus-force graph f

bands. The mass of object 2 is 36 kg. What are the ma

20) Two weights are connected by a massless wire and pu

of 1.50 m/s by a vertical pull P. The tension in the wir

A) 1225

N

B)

125 N

C) 187 5

22) A car enters a 300-m radius horizontal curve on a rain

static friction between its tires and the road is 0.600. W which the car can travel around this curve without slid A) 42.0 B) 33.1 C) 29.6 m/s m/s m/s 23) An 80.0-kg object is falling and experiences a drag fo

magnitude of this drag force depends on its speed, v, a Fdrag = (12.0 N • s/m)v + (4.00 N • s2/m2)v2. What i object? A) 47.3 m/s

B) 12.6

m/s

C) 34.2

m/s

24) A child on a sled starts from rest at the top of a 15° slo

15.2 s how long is the slope? Assume that frictional fo A) 293 m B) 147 m C) 58 25) A 6.00-kg block is in contact with a 4.00-kg block on

as shown in the figure. The 6.00-kg block is being pu as shown. What is the magnitude of the force that the 4.00-kg block?

Answer Key Testname: UNTITLED4

1) C 2) B 3) B 4) D 5) D 6) A 7) B 8) A 9) E 10) C 11) C 12) B 13) C 14) A 15) B 16) A 17) C 18) D 19) A 20) B 21) A 22) A 23) B 24) A 25) E...