Concepts of Science Final (Tests 1,2,&3) Ace Your Exams: Proven Strategies and 100 Practice Questions And Answers|33 Pages
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Concepts Of Science
"Eighty miles per hour toward the northeast" is an example of:
A) acceleration
B) uniform motion
C) rate
D) velocity
E) speed - ️️velocity
Dr. John Snow's research and observations improved the lives of London's citizens in the 1800s by:
A) improving the quality of the drinking water
B)...
Concepts of Science Final (Tests 1,2,&3)
Ace Your Exams: Proven Strategies and
100 Practice Questions And Answers|33
Pages
"Eighty miles per hour toward the northeast" is an example of:
A) acceleration
B) uniform motion
C) rate
D) velocity
E) speed - ✔ ✔ velocity
Dr. John Snow's research and observations improved the lives of London's citizens in the 1800s by:
A) improving the quality of the drinking water
B) finding a cure for cholera
C) diagnosing tuberculosis in the Royal family
D) associating disease with polluted water
E) identifying the bacterium, Vibrio cholera - ✔ ✔ associating disease with polluted water
Elements heavier than uranium have been produced by scientists who:
A) change lead into gold
B) used nuclear fission
C) originally worked with cold fusion
D) bombard a heavy element like lead with krypton ions
E) work on the cutting edge of biological research - ✔ ✔ bombard a heavy element like lead with
krypton ions
Evidence for the theory that an atom is mostly empty space was based on research by..
,A) Joseph john Thomson
B) Niels Bohr
C) John Dalton
D) Ernest Rutherford
E) Daniel Bernoulli - ✔ ✔ Earnest Rutherford
From what part of the electromagnetic spectrum is most of the Sun's energy emitted?
A) radio waves
B) infrared waves
C) visible light waves
D) gamma rays
E) microwaves - ✔ ✔ visible light waves
A biography of Marie Curie would include the fact that she:
A) won a noble prize in both physics and chemistry
B) died of natural causes
C) pioneered X-ray diagnostics for soldiers in WWII
D) was accepted by other scientists of her era
E) discovered DNA - ✔ ✔ won a Noble Prize in both physics and chemistry
A car initially moving towards the west at a speed of 15 m/s changes its velocity to 25 m/s towards west.
When an object's velocity changes, which of the following must have occurred?
A) an unbalanced force acted on the object
B) a balanced force acted on the object
C) the object started to deviate from motion along a straight line
D) the object's speed and direction remained unchanged - ✔ ✔ an unbalanced force acted on the
object
A high-energy physicist might request research funding for studies pertaining to:
A U.S. national recycling program is inhibited by:
A) the way most paper with print is made in the united states
B) the fact that each type of trash requires a unique chemical process to be recycled
C) the sheer volume of trash needing to be processed
D) the mixing of different kinds of plastics in the waste stream
E) all of these are correct - ✔ ✔ all of these are correct
According to the current ideas about the origin of the universe, which one of the following forces exists
before 10-43 seconds?
A) the gravitational force
B) the electromagnetic force
C) the strong force
D) the weak force
E) a single unified force - ✔ ✔ gravitational force
Acid rain is known to:
A) Cause population explosions of deer species
B) trigger glaciations and ice sheets
C) bleach chlorophyll from green plants
D) kill plants in lakes thus reducing fish populations
E) accelerate global warming - ✔ ✔ kill plants in lakes thus reducing fish populations
After mixing the ingredients for a salad, why do the ingredients (lettuce, tomato, cabbage, carrots, etc.)
remain mixed? In other words, why do they not unix themselves?
A) the law of conservation of energy tells us that this will not happen
, B) the statistical likelihood of this happening is so low that the chance of it happening is essentially zero
C) Newton's 1st Law of Motion tells us that this will not happen
D) Newton's 3rd law of motion tells us that this will not happen - ✔ ✔ the statistical likelihood of this
happening is so low that the chance of it happening is essentially zero
An example of a metallic bond is:
A) DNA
B) organic compounds
C) hydrogen gas
D) NaCl
E) an alloy - ✔ ✔ an alloy
At this moment, the sun is producing energy by burning:
A) plutonium
B) anthracite
C) hydrogen
D) helium
E) iron - ✔ ✔ hydrogen
Basic research scientists:
A) are interested in inquiry for the sake of acquiring fundamental knowledge
B) believe in the healing power of meditation
C) want their research to have practical application to industry or technology
D) often have their discoveries translated into practical uses
E) would be likely to have a patent on a discovery - ✔ ✔ are interested in inquiry for the sake of
acquiring fundamental knowledge
Bats navigate by emitting high pitched sound waves and..
A) killing all moths within 10 meters
B) attracting various insects toward the sound
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