Round #8 Flashcards
(50 cards)
1) MATH Multiple Choice For numbers < 10 (read as: less than or equal to 10), and not
including the number 1, how many are prime numbers?
W) 3
X) 4
Y) 5
Z) 2
ANSWER: X) 4 (Solution: primes are 2, 3, 5, 7)
1) MATH Short Answer Factor the expression: x2 + 3x – 10
ANSWER: (x + 5)(x – 2)
2) LIFE SCIENCE Multiple Choice A summary reaction for photosynthesis is:
W) CO2 + O2 + H2O and light yields carbohydrate + O2
X) CO2 + H2O and light yields carbohydrate + O2
Y) CO2 + H2O and light yields carbohydrate + H2O
Z) CO2 + O2 + H2O and light yields carbohydrate + H2O
ANSWER: X) CO2 + H2O AND LIGHT YIELDS CARBOHYDRATE + O2
2) LIFE SCIENCE Multiple Choice It is generally believed that most of the oxygen in the air
today came from:
W) oxidation of carbon molecules containing oxygen
X) release of oxygen from volcanic vents
Y) photosynthesis
Z) forest fires
ANSWER: Y) PHOTOSYNTHESIS
3) LIFE SCIENCE Multiple Choice Osmosis is:
W) the movement of water through a permeable membrane
X) the movement of salts through a semi-permeable membrane
Y) the movement of water through a semi-permeable membrane
Z) the pressure exerted by water through a semi-permeable membrane
ANSWER: Y) THE MOVEMENT OF WATER THROUGH A SEMI-PERMEABLE
MEMBRANE
3) LIFE SCIENCE Multiple Choice Which of the following is most accurate about the
pasteurization of milk:
W) it makes milk taste better
X) it kills all bacteria by sterilizing the milk
Y) it lowers the milk’s pH
Z) it reduces the population of bacteria by heating but not boiling the milk
ANSWER: Z) IT REDUCES THE POPULATION OF BACTERIA BY HEATING BUT NOT
BOILING THE MILK
4) EARTH SCIENCE Multiple Choice The hard rock under the topsoil in eastern Washington
state was laid down over millions of years by volcanic eruptions. This rock is:
W) limestone
X) basalt
Y) lava
Z) granite
ANSWER: X) BASALT
4) EARTH SCIENCE Short Answer Wind speed is measured by what instrument?
ANSWER: ANEMOMETER
5) GENERAL SCIENCE Multiple Choice Doubling a musical note’s amplitude:
W) doubles its frequency
X) doubles its wavelength
Y) increases its loudness
Z) doubles its speed
ANSWER: Y) INCREASES ITS LOUDNESS
5) GENERAL SCIENCE Short Answer Physicists believe there are four fundamental forces
of nature. Name any two of them.
ANSWER: GRAVITATIONAL, ELECTROMAGNETIC, STRONG, WEAK (ANY OF
THESE FOUR IN ANY ORDER)
6) PHYSICAL SCIENCE Short Answer Spanky swings a ball on the end of a string and
maintains it in uniform circular motion, what is the most accurate term for the force exerted on
the rock through the string?
ANSWER: CENTRIPETAL
6) PHYSICAL SCIENCE Multiple Choice The density of an object is a property that depends
on:
W) the total weight of object
X) the total volume of the object
Y) the liquid the object is suspended in
Z) none of the above
ANSWER: Z) NONE OF THE ABOVE
*7) PHYSICAL SCIENCE Multiple Choice Amplitude modulation is typically associated with
what common form of communication:
W) television transmission
X) radio transmission
Y) short wave transmissions
Z) laser transmissions
ANSWER: X) RADIO TRANSMISSION
7) PHYSICAL SCIENCE Multiple Choice Which of the following elements does not occur
naturally in nature:
W) uranium
X) technetium (PRONOUNCED: TECH-net-ee-um)
Y) boron
Z) radon
ANSWER: X) TECHNETIUM
8) MATH Multiple Choice Which of the following is NOT true:
W) all natural numbers are whole numbers
X) all whole numbers are integers
Y) all integers are rational numbers
Z) all numbers can be both a rational number and an irrational number
ANSWER: Z) ALL NUMBERS CAN BE BOTH A RATIONAL NUMBER AND AN
IRRATIONAL NUMBER
8) MATH Short Answer Factor the following equation: x
2
– 6x + 5 = 0
ANSWER: (x – 5) (x – 1) = 0
9) EARTH SCIENCE Multiple Choice As more fossil fuels are burned to produce energy, the
greenhouse effect will continue to cause the temperature of the earth’s atmosphere to increase.
The substance primarily responsible for the greenhouse effect is:
W) ozone
X) carbon dioxide
Y) fluorocarbons
Z) oxygen
ANSWER: X) CARBON DIOXIDE
9) EARTH SCIENCE Multiple Choice Which of the following is sometimes called volcanic
glass because of its shiny appearance:
W) obsidian
X) granite
Y) quartz
Z) diorite
ANSWER: W) OBSIDIAN
10) GENERAL SCIENCE Multiple Choice Which of the following is the most common cause
of deaths in American women between the ages of 20 and 40?
W) AIDS
X) breast cancer
Y) colon cancer
Z) heart attacks
ANSWER: X) BREAST CANCER
10) GENERAL SCIENCE Short Answer Order the following from the SMALLEST unit of
distance to the LARGEST: mile, rod, feet, kilometer.
ANSWER: FOOT, ROD, KILOMETER, MILE
11) PHYSICAL SCIENCE Short Answer For two objects separated by a distance d, if the mass
of one of the objects increases by two times, by what factor will the gravitational attraction
between them increase?
ANSWER: TWO (ACCEPT 2 TIMES)
11) PHYSICAL SCIENCE Multiple Choice Which of the following elements is found in
Period 2 and Group 4A of the Periodic Table:
W) sulfur
X) carbon
Y) nitrogen
Z) oxygen
ANSWER: X) CARBON
12) GENERAL SCIENCE Multiple Choice Tomorrow’s weather forecast report for Venus
would be:
W) snow
X) cold & clear
Y) hot & humid with clear skies
Z) overcast & hot
ANSWER: Z) OVERCAST & HOT
10) GENERAL SCIENCE Multiple Choice What part of the cotton plant produces what is
used to make cotton fabric.
W) flowers or seed pods
X) fibers in the stems
Y) root hairs
Z) fibers in the leaves
ANSWER: W) FLOWERS OR SEED PODS
