Physics A Exam 1: Problem Solving and Conversion Factors, Exams of Physics

The rules, conversion factors, and problems for a physics a exam. Students are required to rank measurements by precision and significant figures, calculate the area and volume of a rectangular tabletop, and convert units. Problems include ranking measurements, calculating areas and volumes, and converting units.

Typology: Exams

Pre 2010

Uploaded on 07/30/2009

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Physics A Exam 1 12/05/20
PHYSICS A
EXAM 1
February 14, 2000
Name:___________________SSN:______________
Rules for Exam:
1. Crib sheet will be provided by instructor.
2. Calculators are allowed, but you may not share one.
3. Show your work on numerical problems. Do not expect any credit for a
problem if I cannot logically follow what you have put on your paper.
4. Follow the rules for significant figures. One point will be deducted for each
infraction.
5. Make sure you include units with each answer. One point will be deducted
for each infraction.
6. Points will be deducted for students that refuse to turn in their exams, when
asked to do so (at the end of class).
7. Circle your final answers.
________________________________________________________
Conversion Factors:
1 mile= 5280 feet (exact) 1 day= 24 hours (exact)
1 km =0.6214 miles 1 year=365.25 days
1 inch= 2.54 cm (exact) 1 hour=60 minutes (exact)
1 gallon =3.785 liters=231 in31 km=1000 meters (exact)
1 slug=14.59 kg 1 foot= 12 inches
1 mile= 1609.3 m 1 parsec=3.26 light-years
1 meter=39.37 inches
1 cm=0.01meters=10 mm (exact)
1 minute= 60 seconds (exact)
Acceleration due to gravity =9.80m/s2= 32.2 ft/s2 downward
SCORE
PROBLEM 1 (10 points)
PROBLEM 2 (10 points)
PROBLEM 3 (20 points)
PROBLEM 4 (12 points)
PROBLEM 5 (15 points)
PROBLEM 6 (13 points)
TOTAL (80 max)
Solve the problems you think are easiest first.
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PHYSICS A

EXAM 1

February 14, 2000

Name:___________________SSN:______________

Rules for Exam:

1. Crib sheet will be provided by instructor.

2. Calculators are allowed, but you may not share one.

3. Show your work on numerical problems. Do not expect any credit for a

problem if I cannot logically follow what you have put on your paper.

4. Follow the rules for significant figures. One point will be deducted for each

infraction.

5. Make sure you include units with each answer. One point will be deducted

for each infraction.

6. Points will be deducted for students that refuse to turn in their exams, when

asked to do so (at the end of class).

7. Circle your final answers.

________________________________________________________

Conversion Factors: 1 mile= 5280 feet (exact) 1 day= 24 hours (exact) 1 km =0.6214 miles 1 year=365.25 days 1 inch= 2.54 cm (exact) 1 hour=60 minutes (exact) 1 gallon =3.785 liters=231 in^3 1 km=1000 meters (exact) 1 slug=14.59 kg 1 foot= 12 inches 1 mile= 1609.3 m 1 parsec=3.26 light-years 1 meter=39.37 inches 1 cm=0.01meters=10 mm (exact) 1 minute= 60 seconds (exact)

Acceleration due to gravity =9.80m/s^2 = 32.2 ft/s^2 downward

SCORE

PROBLEM 1 (10 points) PROBLEM 2 (10 points) PROBLEM 3 (20 points) PROBLEM 4 (12 points) PROBLEM 5 (15 points) PROBLEM 6 (13 points) TOTAL (80 max)

Solve the problems you think are easiest first.

Name:_____________________________________________

  1. Rank the following measurements (in the provided space) from most precise to least precise. If two or more values have same ranking please indicate it by using the word “tie” for the items with the same ranking.(10 points) A. 1185.0 m B. 6.75 m C. 5.000 m ____________________________________________ D. 0.0009 m E. 0.012 m
  2. Rank the above measurements (in the provided space) from most significant figures to least significant figures. If two or more values have same ranking please indicate it by using the word “tie” for the items with the same ranking. (10 points) ___________________________________________ ans a,c,b,e,d
  3. A rectangular tabletop is 4.98 ft by 8.98 ft by 0.629 in. Calculate the area of the largest surface (square inches) and the volume (liters). (20 points) Ans 6.44x10^3 in^2 , 66.4L
  4. Convert 1.02x10^18 kg/m^3 to slugs/gal. (12 points) Ans 2.64x10^14 slugs/gal