Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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Animal | Length of digestive system | Diet
category | Animal weight | Koala | 305 cm | herbivore | 10 kg | Dog | 135 cm | carnivore | 11 kg | Rabbit | 272 cm | herbivore | 9 kg | Bobcat | 145 cm | carnivore | 12 kg | | | | |
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1.
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Herbivores
are animals that eat plants. Carnivores are animals that eat other animals. The table shows data
about several herbivores and carnivores. What conclusion can you draw from the data? a. | There is no correlation
between diet and length of digestive system. | b. | Herbivores have longer
digestive systems than carnivores. | c. | Carnivores have longer digestive systems than
herbivores. | d. | The length of the digestive system is related to the weight of an
animal. | | |
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2.
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What claim
does the ad make? a. | Brand X kills its
competitors. | c. | Weeds are a
problem. | b. | Brand X is the best weed-killing
product. | d. | Brand X is used for
wiping weeds. | | | | |
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Liquid’s
Measurement Data | Liquid | Mass of cup
(g) | Mass of
liquid and cup (g) | Mass of
liquid only (g) | Volume of
liquid (mL) | Density
(g/mL) | Tap
water | 7 | 106 | 99 | 100 | 0.99 | Salt
water | 6 | 110 | 104 | 100 | 1.04 | Oil
| 6 | 98 | 92 | 100 | 0.92 | | | | | | |
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3.
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Which
of the following hypotheses is supported by the data in the table? a. | Density can be
determined from the mass of the cup and liquid and the volume. | b. | Oil will float
on tap water, and tap water will float on salt water. | c. | Salt water is
less dense than either tap water or oil. | d. | The greater the volume of a liquid, the greater its
density. | | |
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4.
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Which
of the following is directly related to the amplitude of a wave? a. | the energy of
the wave | b. | the speed of the wave | c. | the wavelength
of the wave | d. | the medium in which the wave is
produced | | |
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5.
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The
reflection of waves from a surface follows which of the following rules? a. | None of the
energy carried by the wave is reflected. | b. | The angle of incidence is always normal to the
surface. | c. | The angle of incidence is equal to the angle of
reflection. | d. | Only light waves polarized in the horizontal direction are
reflected. | | |
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6.
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The
three waves in the picture do not appear to be moving. Each is being produced by shaking both ends of
a rope. The waves are examples of ____. a. | compressional waves | c. | standing waves | b. | diffracted
waves | d. | refracted
waves | | | | |
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7.
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Sonar
is used to locate icebergs, submerged ships, schools of fish, and even the bottom of the ocean. A
sound wave is sent out from an observation point and the amount of time for the sound to return is
measured. Knowing the speed of sound in water, a scientist can calculate how far the object is from
the observation point. Sonar is based on ability of sound waves to ____. a. | refract | c. | reflect | b. | interfere | d. | polarize | | | | |
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8.
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The
best description of what is happening in B in the diagram is that ____. a. | the people at
the ends of the rope flipped the rope up higher | b. | constructive
interference occurred when the crests of the two waves met | c. | destructive
interference occurred and cancelled part of each wave | d. | the waves are
out of phase so nothing happened | | |
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9.
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Using
the art above, in what year did/will the predicted worldwide oil production peak?
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Table 1 Efficiency of Fossil Fuel
Conversion | Process | Efficiency
(%) | Chemical to thermal energy | 60 | Conversion of
water to steam | 90 | Steam-turning
turbine | 75 | Turbine spins
electric generator | 95 | Transmission
through power lines | 90 | Overall
efficiency | 35 | | |
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10.
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Using
the table above, what part of the fossil fuel conversion to electricity has the highest
efficiency? a. | chemical to
thermal energy | c. | transmission
through power lines | b. | conversion of water to steam | d. | turbine spins electric generator | | | | |
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11.
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The
Greek mathematician, Archimedes, discovered that the buoyant force on an object is equal to the
weight of the fluid displaced by the object. Also, a volume of freshwater has less mass than an equal
volume of salt water. According to these concepts, which of the following statements is
true? a. | An object that
will float in freshwater will definitely float in salt water. | b. | An object that
will float in salt water will definitely float in freshwater. | c. | An object that
will float in both salt water and freshwater will float lower in salt
water. | d. | It makes no difference whether the water is freshwater or salt
water when determining whether an object will float or not. | | |
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12.
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What
type of circuit does the drawing represent? a. | a parallel circuit | c. | a combined series/parallel circuit | b. | a 240-volt
circuit | d. | a series
circuit | | | | |
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13.
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An
electric current is generally a flow of these subatomic particles. a. | protons | c. | electrons | b. | neutrons | d. | nuclei | | | | |
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14.
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What
is the function of a fuse or circuit breaker in a household circuit? a. | to prevent an
open circuit | b. | to keep the current at a safe level | c. | to keep the
resistance low, and therefore safe | d. | to increase the current in the
circuit | | |
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Use the data in the table below to make a graph of resistance in microohms on the y-axis vs. temperature in oC on the x-axis.
Copper Wire Resistance
Resistance in Microohms | Temperature
(oC) | 2.00 | 50.0 | 2.31 | 100.0 | 3.73 | 300.0 | 4.44 | 400.0 | 5.00 | 475.0 | | |
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15.
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What
is the approximate resistance of the wire at 200oC ? a. | 2.85
microohms | c. | 3.19
microohms | b. | 3.01 microohms | d. | 3.42 microohms | | | | |
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16.
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What
type of bond is formed by a reaction between one magnesium atom and two chlorine
atoms? a. | covalent | c. | metallic | b. | ionic | d. | polar covalent | | | | |
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Crude oil
provides many products, but it must be separated into its component parts so that these parts can be
used. This separation process is shown in the diagram and is known as fractional distillation. Crude
oil is heated. As the boiling point of each component of the oil is reached, vapors of this component
leave the mixture. As the vapors rise in the fractionating tower, they are cooled. When each
component is cooled to the point where it changes back to a liquid, it is removed from the tower. The
asphalt left over after the lighter portions are removed is used as a paving material. The lighter
portions, such as gasoline, are often more in demand than the heavier portions, so some of the
heavier portions are broken down into lighter portions in a process called
cracking.
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17.
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Which
of the following statements is true? a. | Jet fuel can be used in an automobile that usually uses
gasoline. | b. | Lighter components of crude oil are used for
fuels. | c. | Lubricating oil boils more readily than
kerosene. | d. | The average boiling point of gasoline is greater than that of
kerosene. | | |
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18.
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Some
types of weathering involve breaking up rock by agents such as roots or ice. What type of change is
involved in this type of weathering? a. | a physical change | b. | a chemical
change | c. | both a chemical change and a physical
change | d. | neither a chemical nor a physical
change | | |
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19.
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When
sodium hydroxide (NaOH) and hydrochloric acid (HCl) react, water forms. What is the other
product?
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20.
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Which
of the following statements is true regarding the relationship between temperature and solubility in
water? a. | All solids
become more soluble as temperature increases. | b. | An increase in
temperature of the water usually results in more solid solute dissolving. | c. | Gases become
more soluble as temperature increases. | d. | The effect of temperature on the solubility of both gases and
solids is the same. | | |
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21.
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Why
is it important to NOT run if your hair or clothing catches fire in a science
lab? a. | It will cause
others to run. | c. | Running will
feed oxygen to the fire. | b. | Running will put out the fire. | d. | The fire will burn out on its own. | | | | |
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22.
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You
launch a toy rocket into the air. When it runs out of fuel, it nose dives and crashes into the
ground. What acceleration describes the crash from the point at which it starts to nose
dive? a. | Increases
rapidly to a constant high speed | b. | Decreases slowly to a constant low
speed | c. | Decreases slowly then suddenly becomes
zero | d. | Increases
rapidly then suddenly becomes zero | | |
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23.
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If a
worker applies an effort force of 15 N to pry open a wooden crate that has a resistance force of 450
N, what is the mechanical advantage of the crowbar?
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24.
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What
is the efficiency of a moveable pulley in which a rope that is pulled with a
5 N force over 4 m lifts a 10-N box 1 m straight up?
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25.
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Radiant energy shines on a piece of dark blue, transparent glass. Which of the
following is most likely to occur? a. | The glass transfers the radiant energy received through the
glass by convection. | b. | All the radiant energy is transmitted through the
glass. | c. | Some radiant energy is absorbed and some is
transmitted. | d. | All the radiant energy is absorbed. | | |
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