Energy, Environment & The Economy
June 6, 2002
Mail #
Instructions:
This test is divided into two parts. Part A is entitled short answer questions
where you are to pick the best word, phrase or choice of answers which
best answers or, in some cases, defines the statement. Part B is entitled
longer answer questions. Make your answer clear and concise. If you need
more room turn over the test paper and continue on the back, but please
write "over" on the test. For problems, it is theprocedure
that will be checked, not only the answer so please try to make it clear.
Be sure to include all units in answering problems (such as we've done
in class). Point weighing is indicated in parentheses. So for this, the
first test of the summer energy course, Good Luck!
A. Short Answer Questions
1. (6) Choose from the physical quantities
which we have discussed - length, area, volume, time, mass, force, speed,
acceleration, work, energy - to answer the following:
a)
A measure of the distance
that an object has traveled is ? .
b)
The amount of surface
(2D) of an object is ? .
c)
A measure of how much an object speeds
up is ? .
d)
A measure of how fast
an object is moving is ? .
e)
A measure of the capacity
to do work is ? .
f)
The quantity of matter
contained by an object is ? .
2. (12) Choose from the list of physical
quantities listed in question 1 to identify the quantities listed below
taken from various problems. Note: Some quantities may be used more than
once.
a)
4.59 ft3
e) 9 slugs
i) 7.4 H
b)
2.1 ft/sec
f) 8.3 cubic m
j) 1.35 N
c)
9.73 ft/sec/sec
g) 8.7 square ft
k) 7.32 lb
d)
8.22 ft/sec2
h) 9.2 ft
l) 3.21 ccf
3. (3) Write the following in powers of
ten (or scientific) notation.
a)
593,000,000,000 kg
b)
.00000593 kg
c)
.5903 kg
4. (3) Write the following in ordinary
notation.
a)
5.22 x 105 m
b)
5.22 x 10-4 m
c) 5.022 x 101 m
Physics 1110 - Test 1 - page 2
5.
(1) Current world population is about ? people.
6. (2) A box measuring 3 ft by 4 ft by 5 ft contains ? ft3 or ? in3.
7.
(1) The prefix "Mega" such as in Megajoules (Mjoules) means ? .
8.
(1) One mg equals ? g.
9.
(2) If 15 gallons of water flow through a faucet every four hours, how
many gallons will flow through the faucet in 24 hours?
10.
(2) If 1.6 km = 1 mile, a distance of 72 km equals ? mi.
11.
(2) With the rate of consumption of a resource growing at the rate of 7%
per year, the consumption in one decade (10 years) is approximately equal
to the total of all previous consumption of that resource (True, False).
12.
(2) What is the doubling time in years if coal consumption increased at
a mere 5% per year?
13.
(2) If the doubling time of bacteria in a bottle were 2 min and the bottle
was completely full at 12 noon, at what time would the bottle be 1/4 th
full?
14.
(2) An object travels 26 ft in 2 sec. Its average speed is ? .
15.
(2) Find the distance that the object of question #14 has traveled in 6
seconds.
16.
(2) 500,000 square cm equal ? square
meters.
17.
(2) The time that it takes for a finite resource to become depleted is
known as the ? .
18. (1) A force acting on a object multiplied by the distance through which that force acts is the definition
(½) of a force called ? . The units for this physical quantity are ? in the English system
(½)
and ? in
the metric system.
19.
(2) The energy of motion is called ? energy.
An example of an object possessing this form of energy is .
B. Longer Answer Questions
1. (4) (a) An object speeds up from rest
to 24 ft/s in 4 s. Its acceleration is ? (Be
sure to include units.)
(b) Draw a diagram and indicate the speed
of the car at the following times: 0 s, 1 s, 2s, 3 s, 4 s.
Physics 1110 - Test 1 - page 3
2. (5) In
the year 1996, a man invested $10,000 in a low-grade bond fund paying 10%
interest per year. His wife, slightly more adventuresome, invested her
$10,000 in a real estate venture yielding 14% interest per year. If those
same interest rates continued to be "continuously" compounded (as discussed
in class) and added to each respective investment, (a) determine the amount
in the man's bond fund after 35 years, (b) determine the amount in the
woman's fund after 35 years, and (c) subtract to determine the difference
earned between the man and woman.
3. (4) Define exponential growth and give
four examples of exponential growth.
4. (5) Fill in and discuss the
significance of the chart
from the Bartlett Article. Be
sure to include the historical
world oil production rate increase
and the corresponding doubling
time.
5. (4) A rectangular block of ice measure
30 cm by 40 cm by 80 cm is sold for $10 per cubic meter. How much does
it cost? (Caution: Watch units!)
Physics 1110 - Test 1 - page 4
6. (3) A force of 20 N acting on a box
moves the box a distance of 70 cm. What work in joules is done by the 20
N force? (Caution: Watch units!)
7. (5) Convert 20 cm/s to mi/H. NOTE: 5280 ft = 1 mile
2.54 cm = 1 in
12 in = 1 ft
1.6 km = 1 mile
60 sec = 1 min
60 min = 1 H
8. (5) (a) Discuss why it was that a shortage
of oil in 1973 and 1979 changed to a surplus
of oil in the years 1983 to the early 90's. (b) Secondly, discuss what
happened to the price
of oil during this period of time. (c) And finally, discuss what has been
recently happening to the supply
of oil and what has happened to its price.
Physics 1110 - Test I - page 5
9. TEXT QUESTIONS:
(6) SHORT ESSAY QUESTION: (a) Provide a discussion of countries in our world whose citizens consume the most energy per capita versus those countries whose citizens spend the least.
(b) Also provide a discussion of countries that enjoy the greatest "standard of living" while consuming a moderate energy per capita. (Hint: Why might a high "standard of living" be comparable to a high "Gross Domestic Product" (GDP) per capita.)
Define and discuss the following from
the viewpoint of the text:
(2) mass energy
(2) Calorie
(2) Renewable and nonrenewable energy
(2) Hydroelectric