Round #7 Flashcards
(50 cards)
*1) GENERAL SCIENCE Multiple Choice Which of the following acids is NOT a flavoring
used in foods?
W) acetic acid
X) lactic acid
Y) citric acid
Z) nitric acid
ANSWER: Z) NITRIC ACID
1) GENERAL SCIENCE Multiple Choice Which of the following is used to focus the electron
beam in an electron microscope?
W) condensers
X) electromagnets
Y) glass lenses
Z) gonculators
ANSWER: X) ELECTROMAGNETS
2) MATH Short Answer What is the square root of 0.49?
ANSWER: 0.7
2) MATH Short Answer Simplify the following algebraic expression: 3x2
+ 4 – (3x + 2 – x2
)
ANSWER: 4x2
– 3x + 2
3) LIFE SCIENCE Multiple Choice Which is not a basic muscle type in the human body?
W) smooth
X) skeletal
Y) ventricular
Z) cardiac
ANSWER: Y) VENTRICULAR
3) LIFE SCIENCE Multiple Choice Stamen is to anther as carpel is to:
W) sepal
X) ovary
Y) egg
Z) pollen
ANSWER: X) OVARY
4) EARTH SCIENCE Multiple Choice Eighty percent of the magma that results from a
volcanic eruption is of what substance?
W) basalt
X) rhyolite
Y) andesite
Z) silicon dioxide
ANSWER: W) BASALT
4) EARTH SCIENCE Multiple Choice Each day, most coastal beaches encounter:
W) one high tide and one low tide
X) two high tides and one low tide
Y) two high tides and two low tides
Z) three high tides and three low tides
ANSWER: Y) TWO HIGH TIDES AND TWO LOW TIDES
5) GENERAL SCIENCE Multiple Choice Which of the following is most typically used as a
unit of measurement for pressure:
W) pascal
X) dyne
Y) weber
Z) tesla
ANSWER: W) PASCAL
*5) GENERAL SCIENCE Multiple Choice Which of the following household items is the best
example of containing matter in the plasma state?
W) fluorescent light
X) toaster oven
Y) blender
Z) microwave oven
ANSWER: W) FLUORESCENT LIGHT
6) EARTH SCIENCE Multiple Choice The last two stars in the bowl of the big dipper point to
which of the following?
W) Vega
X) Cassiopeia
Y) Scorpio
Z) Polaris
ANSWER: Z) POLARIS
6) EARTH SCIENCE Short Answer What is an area on earth that does not receive seismic
waves during an earthquake called?
ANSWER: SHADOW ZONE
*7) PHYSICAL SCIENCE Multiple Choice Certain products have been designed so that
people wearing headphones do not hear the objectionably loud sound from certain machinery
with which they are working. These headphones work based on which one of the following
principles:
W) doppler effect
X) destructive interference
Y) constructive interference
Z) audiopolarization
ANSWER: X) DESTRUCTIVE INTERFERENCE
*7) PHYSICAL SCIENCE Multiple Choice In chemical reactions when bonds between atoms
are broken which of the following is most correct:
W) energy is always needed
X) both heat and light are always emitted
Y) energy is always released
Z) they cannot be repaired
ANSWER: W) ENERGY IS ALWAYS NEEDED
8) MATH Multiple Choice If the average speed of a bicyclist is 2 meters/second for one
kilometer, then the biker must have traveled the entire distance and:
W) stayed at 2 meters/second
X) did not encounter hills
Y) did not stop
Z) took 500 seconds
ANSWER: Z) TOOK 500 SECONDS
8) MATH Short Answer Simplify the following algebraic expression: 2x + 3(y + 3z + x)
ANSWER: 5x + 3y + 9z
9) PHYSICAL SCIENCE Short Answer If the distance separating two charges is tripled, the
force between them decreases by what factor?
ANSWER: 9
*9) PHYSICAL SCIENCE Multiple Choice The reason why a beach ball held under the
surface will pop up when released is because:
W) the buoyant force has a net upward direction
X) gravity is only acting at the surface
Y) the pressure of the water is only in the upward direction
Z) the ball is lighter than air
ANSWER: W) THE BUOYANT FORCE HAS A NET UPWARD DIRECTION
10) MATH Short Answer Reduce
54
18 to its lowest fraction:
ANSWER:
1/3
10) MATH Short Answer Find the value of 4x – 6y if x = -2 and y = -3:
ANSWER: 10
11) LIFE SCIENCE Multiple Choice The receptors in the retina of the eye that detect faint light
and transfer non-color impulses to the brain are:
W) corpuscles
X) rods
Y) cones
Z) axons
ANSWER: X) RODS
11) LIFE SCIENCE Multiple Choice Which of the following does NOT occur in mitosis:
W) DNA synthesis
X) sets of sister chromatids line up singly
Y) sister chromatids separate as the centromere divides
Z) spindle fibers help in the movement of chromosomes
ANSWER: W) DNA SYNTHESIS
10) PHYSICAL SCIENCE Multiple Choice Which of the following is the emission source for
microwaves in a typical microwave oven:
W) small cyclotron
X) cadmium disk bombarded with a soft x-ray source
Y) magnetron
Z) laser lamp
ANSWER: Y) MAGNETRON
*10) PHYSICAL SCIENCE Multiple Choice The red color in firework displays on the Fourth
of July is caused by which element?
W) lithium
X) sodium
Y) copper
Z) iron
ANSWER: W) LITHIUM
