Math Pre-Test for Physics 101 , Section 2

Instructor: Dr. Luca Perotti

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. This test is for your benefit, it will not be part of your grade

1)

Solve for y where 8x - 5y = 3 ?

  a) y=8x+8 b) y=8x-8 c) y=42 d) y = 8x/5-3/5
2)

The difference between two positive integers is 44. One integer is three times as great as the other. Find the integers?

  a) 44 and 66 b) 22 and 44 c) 66 and 110 d) 22 and 66
3)

In the morning, May drove to an appointment at 50 mph. Her average speed on the return trip in the afternoon was 40 mph. The return trip took one hour longer. How far did she travel to the appointment?

  a) 200 miles b) 100 miles c) 50 miles d) 25 miles
4)

Jane's first 5 exam scores are 65, 70, 55, 82 and 87. What score on her sixth exam will give her an average score of 70?

  a) 85 b) 61 c) 72 d) 60
5) Find the slope of the line: 4x + 5y = 23?
  a) 5 b) -23 c) -4/5 d) 5/4
6) Find the absolute value -|-21|?
  a) -21 b) 0 c) 42 d) 21
7) Evaluate the expression 2(w - 2z) for w = 4, z = -3 ?
  a) -4 b) 20 c) -20 d) 14
8)

Express in scientific notation 0.000028513 ?

  a) 2.8513E-6 b) 2.8513E+5 c) 2.8513E-7 d) 2.8513E-5
9) Simplify 9x - (9 - 3x) ?
  a) 12x-9 b) 6x-9 c) 6x+9 d) 12x+9
10) A speedboat moves at a rate of 18 km/hr in still water. How long will it take someone to ride the boat 46 km downstream if the river's current moves at a rate of 5 km/hr?
  a) 3 hr b) 1/2 hr c) 500 hr d) 2 hr

 

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