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33 Cards in this Set
- Front
- Back
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Which of the following steps in making coffee involves a chemical change in matter?
a. Whole bean coffee is ground in a coffee grinder b. A burner on a propane stove is lighted to heat water c. water in a kettle begins to boil d. boiling water is poured through a filter containing ground cofee |
B
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Which of the elements in the section of the periodic table shown above are likely to have the most similar properties
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Up and down columns
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Which of the following liquids is the most acidic and will have the lowest ph?
a. milk b. household amonia c. distilled water d. vinegar |
D.
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C to the 14 is an isotope of C to the 12. Both carbon atoms have an atomic number of six. Which of the following is the main difference between these two types of carbon atom?
a.the c 14 atom has eight neutrons and the c 12 has six neutrons b. the c14 atom has fourteen electrons and the c12 has twelve electrons c. the c14 atom has eight protons and c12 has six protons d. the c14 atom has fourteen neutrons and the c12 has twelve neutrons |
A. Because You should know that carbon-12 has 6 protons, 6 neutrons, and 12 mass in amu
Carbon 13 has 6 protons, 7 neutrons, and 13 amu carbon 14 has 6 protons, 8 nuetrons and 14 amu |
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Be sure and read page 1-4 of cset practice test in white binder to review protons, electrons, and neutrons
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a
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Which of the following is the best example of the refraction of light waves?
a. markings on flowers that are invisible in normal light can be seen in ultraviolet light b. deep lakes appear to be blue or green in color c. sunlight striking a black box will make the box warmer than the same light striking a white box d. light passing through raindrops produces a rainbow |
d. because as a light passes through a medium (water) it is refracted
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Newton's third law of motion states that for every action there is an equal and opposite reaction. Which of the following is the best example of the application of this law?
a. more fuel is needed to drive a truck ten miles when it is loaded |
B. an inflated balloon because as the air leaves balloon it move. Not D because this is a different law
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Which of the following examples best demonstrates the difference between thermal energy and temperature?
a. a cup of water at 50 degrees celcius contains less thermal energy than a bathtub full of water at 10 celcius b. the same amount of water loses heat faster if it is in a tall, narrow bottle than if it is in a short, wide bottle c. a dark-colored object gets warmer in teh sun than a light colored object d. a person feels cooler on a cold day when the wind is blowing |
A. Because thermal energy is the rate at which molecules move in a given substance. They cannot move as quickly in the smaller verses the bigger so this is the best description of the two.
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They will ask about a large round boulder that is pushed from the top of a smooth steep hill and rolls down to the bottom. Which of the following graphs shows the difference the boulder travels with respect to time as it rolls down the hill?
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Choose the graph that has distance going up gradually in time 7
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The stems of a bunch of just-cut white flowers are immersed in a container of water to which blue dye has been added. After 24 hours, 2 tablespoons salt are added to the water. Twenty-four hours later the flowers will most likely appear
a. wilted and white blue b. fresh and white blue c.wilted and white d. fresh and white blue |
a. wilted and light blue
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Which part of the heart is responsible for pumping blood to most of the tissues of the body
a. left atrium b. left ventricle c. right atrium d. right ventrical |
b. left ventricle
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Which of the following statements best explains how carbon plays a central role in the functioning of biological systems?
a. Carbon actively transports nutrients and wastes across cell membranes b, Carbon insulates nerves because it has very low electrical conductivity c. Carbon combines with a large number of elements to form a variety of useful compounds d. Carbon transports oxygen through the bloodstream to the cells of the body |
C. Carbon combines with a large number of other elements to form a variety of useful compounds
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Certain species of acacia trees have long hollow thorns that house stinging ants. The ants feed on nectar produced by the tree and attack anything that touches the tree. The relationship between the ants and the acacias is an example of :
a. mutualism b. parasitism c. commensalism d. predation |
A
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See questions 14-15 with accompanying graphy
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s
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Aphids can reproduce asexually in the summer months what is an advantage of this?
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A female can replicate her genes very rapidly by reproducing large numbers of identical offspring when food is plentiful in the summer
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In which of the following cases of cell division is the amount of genetic material halved?
a. a bacterium undergoes fission to produce two cells b. Cells in the tail stump of lizard divide and produce a new tail after the original tail is lost to a predator c. A cell in the testes of a male sparrow divides and produces four sperm d. an ovum in a female mouse divides shortly after being fertilized by a sperm from a male mouse. |
C.
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When a seed germinates its roots will grow down and its shoots will grow up, even if the seed is planted upside down. This downward growth of roots and upward growth of shoots is due to the plants response to
a. gravity b. light c. temperature d. moisture |
a. gravity
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Which of the following elements has 16 neutrons?
a. 6 C 12 b. 15 P 31 |
When they ask this question you need to subract the atomic number (number of protons shown at top of cell from the atomic mass (shown at the bottom of the cell)
The answer is b 31-15-16 |
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H 1 (raised 3)H 3H is an isotope of Hydrogen. What is the atomic mass of this isotope? a. 1 b. 2 c. 3 d. 4 |
The atomic mass of an isotope of an element can vary depending on the number of nuetrons it has. The raised number 3h
of the isotope gives the atomic mass Answer C is correct |
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Which line has the correct information about the Carbon Isotope listed?
a. Carbon-14 w/7 neutrons and Mass in au of 21 b. Carbon-13 w/7 nuetrons and mass in au of 13 c. carbon-12 with 5 nuetrons and mass in au of 12 d. carbon-11 with 5 nuetrons and mass of 5au |
You may remember that carbon always has 6 protons. Choice b is correct because mass is equal to the number of of protons plus the number of neutrons. 6=7=13
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Which of the following explains best what happens to light when it strikes a flat mirror?
a. Light is reflected straight back from the flat mirror. b. the light ray reflects back form the mirror at the same angle it strikes c. the light ray is refracted at many different angles back from the mirror. d. the light is absorbed leaving only an image of the light waves to be viewed. |
B. The phrase most often used is "angle of incidence equals angle of reflection" a. in general, light is not reflected straight back. C light refracts through a prism but it reflects back from a mirror. D. The majority of the light that strikes a mirror reflects back.
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Written as a formula, Newtons second law of motion is Force (F)=(M)ass x (A) acceleration
Which of the following is the best picture of this law? a. Something heavier will move slower than something lighter b. it is easier to move something if it has less mass c. the more acceleration you apply, the less mass there is. d. the more mass there is means there is more force applied to it. |
B the formula means "the more mass there is the more force you need to accelerate it" Less mass means you need less force
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which of the following is the best example of heat conduction?
a. a person feels heat when they stand near an electric stove b. a person feels heat in sunlight c. a person feels heat in front of an air blower d. A person feels heat when they touch a steam radiator |
d. conduction means heat transfer through direct contact;whereas convection is heat through movement such as the movement up in the atmosphere of heated moisture
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A green plant is placed in a terrarium and subjected to continuous light and to watering. which of the following can we be sure will happen as a result of photosynthesis?
a. the plant will produce oxegen b. the plant will produce carbon dioxide c. the plant will produce water d. the plant will produce carbon monoxide |
A. photosynthesis in a green plant produces oxygen, along with carbohydrates (sugar and starch).
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Which of the following is the most likely short-term outcome if sea otters were hunted to extinction?
a. the number of sea urchins would be greatly reduced b. the number of algae would be greatly increased c. The number of kelps would be greatly reduced. d. the number of plankton would be greatly increased. |
C. in the short-term, the number of sea urchins will increase. In turn, the number of kelps will decrease because they are the sea otter's favorite food.
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How do cells create energy?
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Through respiration
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What are some other cell activities?
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ingestion: take in food
digestion: break down food into usable forms secretion: create and release useful substances Excretion: eliminate waste material Homeostatis: Maintains the cells equillibrium |
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Some cells respire aerobically while others respire anaerobically. Fermentation is an example of anaerobic respiration in that
a. the process occurs only during cell division b. the process does not require oxygen c. the process only occurs in aquatic animals d. the process produces oxygen |
B. Anaaerobic respiration means respiration without oxygen. A is incorrect because anaerobic respiration is not related to cell division. C is incorrect because fermentation is the most commonly discussed example of anaerobic respiration. D is incorrect because anaerobic respiration does not produce oxygen.
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Where do cells create energy?
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In the mitochondria
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What is aerobic respiration?
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The oxidation of food, which takes place in the presence of oxygen
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What is anaerobic respiration?
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It is like fermentation which takes place without oxygen
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From which chamber does oxygen-poor blood leave the organ shown to go to the lungs?
a. left atrium (Top smaller part of heart b. left ventricle (larger bottom quarter of heart c. Right atrium d. left atrium |
D. Right ventricle
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Which of the following examples of cell reproduction results in a doubling of the number of chromosomes
a. a human egg cell is formed. b. a human sperm cell is formed. c. a human cell enters the metaphase statge of mitosis d. human sperm and egg cells combine |
d. a human sperm cell and egg cell each has half th enumber of chromosomes normally found in an individual. When they combine, they form a zygote that has double the number of cells found in the sperm cell or the egg cell. ABC are incorrect because cell reproduction through mitosis maintains the number of chromosomes found in the parent cell.
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