Transcript C - mracostascience

Hi, I’m Alex Trebek
And Welcome
to
,
America’s Favorite
Quiz Show
Obj. 1
Matter & Energy
Obj. 2
Force, Motion,
& Energy
Obj. 3
Earth & Space
Obj. 4
Organisms &
Environment
Hodgepodge
Potpourri
$100 $100 $100 $100 $100 $100
$200 $200 $200 $200 $200 $200
$300 $300 $300 $300 $300 $300
$400 $400 $400 $400 $400 $400
$500 $500 $500 $500 $500 $500
Class
Objective 1 for $100
B
The diagram below illustrates the basic structure of an atom. What
is wrong with the diagram?
A.
B.
C.
D.
8.5A – Atomic Structure
Neutrons should have a positive charge
Electrons are found outside the nucleus
Protons should have a negative charge
Neutrons are not found in the nucleus
Objective 1 for $200
C
All of the following are indicators of a
chemical change except A.Formation of a gas
B.Change in temperature
C.Change in the state of matter
D.Formation of a precipitate
8.5E – Chemical Changes
Objective 1 for $300
D
Chlorine is added to some
alcohol chemicals to make
weed-killer. Some
environmentalists have
concerns about the pollution it
causes. Using the periodic
table, which chemical would
you suspect might have
similar properties and could
possibly be substituted for
chlorine?
A.
B.
C.
D.
Magnesium
Carbon
Chromium
Bromine
8.5C – Interpret the Periodic Table
Objective 1 for $400
A
Which of the models best represents CaCO3?
8.5D – Recognizing Chemical Formulas
Objective 1 for $500
A
Some elements from the periodic table are listed in the chart.
Which of the elements is the least and most reactive?
A.
B.
C.
D.
Least Reactive: Neon; Most Reactive: Hydrogen
Least Reactive: Hydrogen; Most Reactive: Carbon
Least Reactive: Carbon; Most Reactive: Neon
Least Reactive: Nitrogen; Most Reactive: Hydrogen
8.5B – Properties of Elements
Objective 2 for $100
C
What do unbalanced forces do to an object when they act
upon the object?
A. Unbalanced forces cause an object to maintain its state of
motion
B. Unbalanced forces cause the net force of an object to be
zero
C. Unbalanced forces cause an object to start moving, stop
moving, or change directions
D. Unbalanced forces cause an object to maintain the same
speed and the same direction
8.6A – Unbalanced Forces
Objective 2 for $200
D
What is the difference between the speed of a moving object
and its velocity?
A. The speed of a moving object never changes, but the
velocity can change.
B. The velocity of a moving object never changes, but the
speed can change.
C. The direction of motion must be specified for speed, but
not for velocity.
D. The direction of motion must be specified for velocity, but
not for speed.
8.6B – Speed, velocity, & acceleration
Objective 2 for $300
A
A student sitting in a wheelchair at
rest throws a basketball forward.
Since the student and the wheelchair
have greater mass than the
basketball, the student and the
wheelchair will A. Move backward at a slower speed than the basketball moves
forward
B. Travel the same distance as the basketball but in the opposite
direction
C. Move backward at a faster speed than the basketball moves
forward
D. Move with the same forward force as the basketball
8.6C – Newton’s Laws
Objective 2 for $400
A
The frog leaps from its resting
position at the lake’s bank onto a
lily pad. If the frog exerts a net
force of 1.5 N and the
acceleration of the leap is 3 m/s3,
what is the mass of the frog?
A.
B.
C.
D.
8.6C – Newton’s Laws
0.5 kg
1.5 kg
4.5 kg
45 kg
Objective 2 for $500
B
A toy car rests motionless on the floor. Jeff starts to move the car to
the right with 1 newtons. At the same time, Owen begins pushing
the car to the left with a force of 4 newtons. Which of the following
best describes the resulting motion of the toy car?
1 Newton
A.
B.
C.
D.
8.6A – Unbalanced Forces
It travels left at a constant speed.
It travels left at an increasing speed.
It travels right at a constant speed.
It travels right at an increasing speed.
4 Newton
Objective 3 for $100
A
Which table represents a land feature or geologic process that occurs at
each type of boundary pictured?
8.9B – Plate Tectonics
Objective 3 for $200
C
Look at the new moon.
You can predict that the next phase in the lunar cycle will be -
A.
B.
C.
D.
8.7B – Lunar Cycle
First quarter
Waxing gibbous
Waxing crescent
Full moon
Objective 3 for $300
D
Rigel, Polaris, and Betelgeuse are
classified as supergiant stars. Based on
the Hertzsprung-Russell diagram, what
characteristics do these three stars have
in common?
A. The three stars are located
approximately the same distance
from Earth.
B. The three stars have very high
surface temperatures.
C. The three stars are newly formed
stars.
D. The three stars are all very bright.
8.8A – Components of the Universe
Objective 3 for $400
A
Which pair of statements best describes Earth’s position relative to the sun
in late March and in late September?
A. Neither end of Earth’s axis tilts toward the sun. Both the Northern and
Southern Hemispheres receive the same amount of solar energy.
B. Both ends of the Earth’s axis tilt towards the sun. Both the Northern
and Southern Hemispheres receive the same amount of solar energy.
C. The northern end of Earth’s axis tilts toward the sun. The Western
Hemisphere receives more solar energy than does the Eastern
Hemisphere.
D. The southern end of Earth’s axis tilts toward the sun. The Eastern
Hemisphere receives more solar energy than does the Western
Hemisphere.
8.7A – Seasons
Objective 3 for $500
C
Predict what would happen to Carver Creek after a heavy rainfall.
A.
B.
C.
D.
It will
It will
It will
It will
8.9C – Topographic Maps
erode less soil than Cutter Creek.
erode less soil than Sandy Creek.
erode more soil than Sandy Creek.
erode the same amount of soil as Sandy Creek.
Objective 4 for $100
A
In a marine ecosystem, small fish must be able to
swim away or hide from larger fish to avoid being
eaten. Based on this information, for what biotic
factor do small fish compete with other small fish?
A. Marine plant life
B. Carbon dioxide
C. Oxygen
D. Food
8.11B – Competition for Biotic/Abiotic Factors
Objective 4 for $200
D
Which of the following
best describes a
predator-prey
relationship in the
freshwater ecosystem?
A
C
B
D
8.11A – Relationships in an Ecosystem
Objective 4 for $300
C
A student investigates how grasshoppers are affected by an environment
changing due to drought conditions. Based on the data, which statement
best predicts how subsequent populations of the grasshoppers may be
affected by the changing environment?
A.
B.
C.
D.
The body size of the brown grasshopper will decrease.
The population of green grasshoppers will increase.
The population of brown grasshoppers will increase.
The number of offspring of the green grasshoppers will
increase.
8.11C – Environmental Changes
Objective 4 for $400
C
Oceans receive rainfall runoff from land surfaces. What is one way
in which runoff from human activities impacts ocean systems?
A. Developed lands can increase the amount of runoff flowing into
the ocean, changing the pattern of tides.
B. Developed lands can decrease the amount of runoff flowing into
the ocean, lowering ocean levels.
C. Chemical fertilizers applied to agricultural land can enter ocean
water in runoff, creating an overgrowth of some aquatic plants.
D. Oil and gasoline in runoff from roads can enter ocean waters,
increasing the amount of fossil fuels recovered from drilling
beneath the ocean floor.
8.11D – Human Impact
Objective 4 for $500
D
The walking catfish is a type of fish that inhabits many waterways in Florida. This
catfish has a unique ability to survive out of water for short periods of time. The
catfish has special organs that allow it to breather oxygen from the atmosphere, as
well as spikes on its fins that allow it to “walk” awkwardly across dry land. Walking
catfish have been seen walking across roads, on grass, and even on people’s
driveways. What kind of environmental change most likely led to these unique
adaptations in the walking catfish?
A. As the population of predators in their environment increased, catfish with
the breathing and walking traits were able to escape to a different
waterway.
B. As the catfish food supply diminished, catfish with the breathing and
walking traits moved on to land to hunt for land animals to eat.
C. As water temperatures increased, catfish with the breathing and walking
traits left their environment to find relief in shaded areas.
D. As water in the environment began to dry up, catfish with the breathing and
walking traits left their environment to find nearby waterways with more
water.
8.11C – Environmental Changes
Hodgepodge for $100
D
The graphs shows the motion of
four different bicyclists during a
one-hour bicycle ride. Based on
the graph, which bicyclist traveled
at a constant speed during the
entire ride?
A.
B.
C.
D.
Bicyclist R
Bicyclist S
Bicyclist T
Bicyclist U
6.8D – Graph Changes in Motion
Hodgepodge for $200
B
Which statement best describes the energy changes
that occur while a child is riding on a sled down a steep,
snow-covered hill?
A. Kinetic energy decreases and potential energy
increases
B. Kinetic energy increases and potential energy
decreases
C. Both potential energy and kinetic energy decrease
D. Both potential energy and kinetic energy increase
6.8A – Potential & Kinetic Energy
Hodgepodge for $300
B
Some common substances
and their chemical formulas
are listed in the chart. How
many different elements are
listed in the chart?
A. 4
B. 5
C. 11
D. 13
6.5C – Elements & Compounds
Hodgepodge for $400
A
The diagram shows the
steps necessary to produce
the energy needed to run a
hair dryer. As it moves from
location A to location D what
energy transformations
occur?
A.
B.
C.
D.
chemical→thermal→mechanical→electrical
electrical→thermal→mechanical→electrical
thermal→electrical→chemical→mechanical
chemical→electrical→thermal→mechanical
6.9C – Energy Transformations
Hodgepodge for $500
A
The diagram shows two organisms. How are these two
organisms classified?
A.
B.
C.
D.
same domain, different kingdom
same domain, same kingdom
different domain, same kingdom
different domain, different kingdom
6.12D – Domains & Kingdoms
Potpourri for $100
B
Throughout history, humans bred horses to produce
traits in the horses that met many different needs. For
example, horses of the Middle Ages were bred to carry
a heavily armored knight and its weapons into battle.
What type of traits appeared in the horses of the Middle
Ages as a result of selective breeding?
A. Small, light horses
B. Large, strong horses
C. Medium-sized fighting horses
D. Smart, nimble horses
7.11C – Natural Selection & Selective Breeding
Potpourri for $200
C
A student looks through a microscope to compare and contrast an animal
and plant cell. He sees an organelle similar in both cells, as indicated by
the arrow.
What is the name and function of this organelle?
A.
B.
C.
D.
Vacuole, which stores waste and food inside the cell
Golgi body, which stores and transports proteins
Nucleus, which contains most of the cell’s genetic material
Lysosome, which stores enzymes created in the
endoplasmic reticulum
7.12D – Structure & Function of Cells
Potpourri for $300
D
An emergency medical technician performs CPR
(cardiopulmonary resuscitation) on an unconscious person who
is not breathing. Until help arrives, CPR performs the main
functions of two organ systems in the unconscious person’s body. What
are the two organ systems and their functions performed by CPR?
A. Circulatory system moves air into the person’s lungs, and
skeletal system keeps the person’s organs from collapsing
B. Respiratory system moves air into the person’s lungs, and
muscular system keeps the person’s body relaxed
C. Digestive system moves nutrients throughout the person’s
body, and integumentary system keeps blood flowing
through the body
D. Respiratory system moves air into the person’s lungs, and
circulatory system keeps blood flowing through the body
7.12B – Human Body Systems
Potpourri for $400
C
A marine food web is shown to the right.
Which of the following diagrams
correctly represents an energy pyramid
from this web?
7.5C – Flow of energy in Ecosystem
Potpourri for $500
D
The Edwards Aquifer in south central
Texas is the sources of fresh water for
more than 1.5 million people. The
population in the Edwards Aquifer region
is growing fast, and there are more
housing developments and roads being
built in the area. One danger of building
a factory in the recharge zone is that
waste water released by the factory is
likely to -
A.
B.
C.
D.
Seep into farmland around the drainage area
Cause seasonal flooding in the surrounding area
Poison animals living near the water table spring
Contaminate water collected from artesian wells
7.8C – Human Activity on Groundwater