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A person standing where the Moon's penumbra touches Earth will see
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SCI 352
Question | Answer |
---|---|
A lunar eclipse can only occur during which phase of the Moon? | full |
A person standing where the Moon's penumbra touches Earth will see | partial solar eclipse |
A person traveling westward across the International Date Line gains a day. | true |
According to the plate tectonics theory, sea-floor spreading occurs at a | divergent boundary |
An apparent solar day is | all of the above |
As viewed from space above the North Pole, Earth rotates clockwise. | false |
Basalt and granite are examples of metamorphic rocks. | false |
During which month of the year does Earth receive the greatest average energy from the Sun? | january |
During which phase of the Moon would we most likely see a solar eclipse? | new |
Evidence shows that Earth's magnetic field is diminishing with time and may reverse orientations by the end of the next | 2,000 years |
Evidence that Earth is rotating is provided by | the motion of a pendulum |
Evidence that Earth's magnetic field has undergone numerous reversals can be found | in the orientation of iron minerals that cooled in once molten rock |
Fine-grained igneous rocks formed as magma cooled slowly. | false |
For the last 3 billion years the surface of the Moon has been | relatively quiet |
Geologists think that oceanic crust is different from continental crust because | seismic waves travel at different speeds through these layers |
If you were flying east on a jet across three times zones and your watch read 12:00 noon when you landed, you should | set it to 3:00PM |
Igneous rocks that formed by cooling slowly from a molten magma will have | coarse grains |
Igneous, sedimentary, and metamorphic rocks have undergone little change since Earth formed | false |
In the time 9:00 AM, the "AM" means | before the meridian |
Latitude is a measure of how far north or south one is from the equator. | true |
Long, high and continuous mountain ranges run through the middle of the oceans. | true |
Molten rock material from which minerals can crystallize is called magma. | true |
Most of Earth's mass is contained in the | mantle |
Most rocks are composed of minerals that are | silicates |
Neap tides result when the Moon is | in the quarter phase |
North of the Tropic of Cancer, the Sun appears directly overhead at noon | never |
On the Summer Solstice, the Sun rises south of due east, and sets south of due west | false |
P-waves travel through both solid and liquid rock, but S-waves cannot travel through liquid | true |
Sandstone is sand that has been consolidated into a solid mass | true |
Sedimentary rocks were formed from particles or dissolved materials from older rocks | true |
Seismic waves show a sudden increase at the Mohorovicic discontinuity because the | composition of minerals on both sides of the layer is different |
The Himalayan Mountains were formed as a result of | continent-continent plate convergence |
The Julian calendar adjusted for the fact that Earth's year was not exactly 365 days by adding a day every fourth year. | true |
The San Andreas Fault is the site of a | transform boundary |
The ancient Greeks believed that the shape of Earth was | a perfect sphere |
The asthenosphere is | a plastic layer in which the lithosphere is imbedded |
The average temperature of Earth is slightly lower in January because then Earth is at its greatest distance from the Sun. | false |
The axis of Earth's rotation will not always point towards Polaris due to precession. | true |
The fact that there are seasons on Earth is largely due to | the tilt of the Earth's axis |
The findings from the Apollo space missions to the Moon support the idea that the Moon formed from the impact of Earth with a very large object. | true |
The formation of which of the following rocks helps remove CO2 from the atmosphere? | limestone |
The most common rock type in Earth's crust is | igneous |
The path of a plane flying due north from a spot on the equator would appear to | curve to the east |
The position of a spot on the floor made by a sunbeam traces out a "figure eight" pattern over the course of a year. | true |
The slow wobble of Earth's axis is called | precession |
The various sedimentary rocks such as conglomerate and sandstone are identified by | particle size |
We always see the same side of the Moon because | the Moon's periods of rotation and revolution are the same |
Weathered sediments are pressed and cemented to form | sedimentary rocks |
Which of the following statements about Earth's core is true? | the core is mostly made of iron |
Which of the following statements about seismic waves is not true? | both P-waves and S-waves travel readily through molten rock |
A comet's tail always trails behind it throughout its journey through the solar system | false |
A dwarf planet of the solar system is | all of the above |
A light-year is a measure of astronomical distance. | true |
A protostar is an accumulation of gases in outer space that will become a star. | true |
About how old is the universe? | 13.7 billion years |
Compared to a star like the Sun, a blue-white star | all of the above |
Earth moves most rapidly in its orbit around | January 3 |
Earth rotates | from west to east |
Earth, other planets, and the rest of the solar system formed | billions of years ago from elements created in previously existing stars |
How far Polaris appears above the horizon depends on | your latitude |
If the density of the universe is less than a critical value, then | it might continue expanding forever |
It is impossible to theorize about the formation of the solar system because no other planetary systems can be observed | false |
It is known that if there is sufficient dark matter in the universe, then the universe will eventually stop its expansion. | false |
More massive stars tend to use up their supply of hydrogen more rapidly. | true |
Most of the mass of the solar system is found in | the sun |
Most of the stars plotted on a H-R diagram are | main sequence stars |
Nuclear fusion reactions occur in what part of a star? | core |
One of the following planets is denser than the others | earth |
Our model of the surface features of Venus was obtained by | radar mapping from the magellan probe |
Photographs of the surface of Mars provides evidence that liquid water once flowed on its surface | true |
Red giants are enormously bright because they are extremely hot. | false |
Remnants of asteroids or comets that survive the trip through Earth's atmosphere to strike the surface are called | meteorites |
Stonehenge is an ancient observatory built in | england |
Strong evidence about former existing life has been found on | none of the above |
The Milky Way galaxy is | spiral |
The Sun has hundreds of times more mass than all the rest of the solar system | true |
The absolute magnitude considers the brightness of a star when at a standard distance | true |
The asteroids forming a belt between the orbits of Mars and Jupiter were prevented from forming a planet by the strong gravitational field of Jupiter. | true |
The brightest object in the sky after the Sun and Moon is | venus |
The core of a star is plasma with the density of solid lead. | true |
The density of the planet Saturn is so low that it would float in water. | true |
The difference in brightness between two stars is related to the | all of the above |
The elements heavier than iron in Earth were formed by the supernova explosions of other stars | true |
The eventual fate of our Sun is to become | a white dwarf |
The expected life span of a star the size of the Sun is | 10 billion years |
The greater the apparent magnitude, the brighter the star. | false |
The polar ice caps of Mars is believed to consist mostly of | solid carbon dioxide |
The smallest planet in the solar system is | mercury |
The surface temperature of Venus is so high because | its atmosphere traps much of the incoming solar energy |
The temperature on the surface of Venus is hot enough to melt lead. | true |
Venus, the sister planet to Earth, has an atmosphere whose composition is similar to that of Earth. | false |
When a massive star exhausts its supply of hydrogen fuel, it becomes a supernova | false |
Where a main sequence star is located on the H-R diagram depends on its temperature and its | mass |
Which of the following depends on your location on Earth? | celestial meridian |
Which of the following is true about the surface of Mars? | it is much too cold for liquid to exist |
Which of the following star colors has the highest temperature? | blue |
Which of the following statements about comets is not true? | most comets have elliptical orbits with periods around one hundred years |
Which of the following statements about the length of a planet's day is true? | none of the above |
Which planets have no moons? | mercury and venus |
Which type of star has the shortest life span? | large, very massive |
Which of the following object does not emit light? | the moon |
When you see a rainbow, you know for sure that | you are between the sun in one direction and falling rain in the other direction |
When monochromatic light from two slits arrive at a point on a screen out of phase, | a dark region in produced |
When an electric stove element is hot enough, it gives off a dull red glow. When it cools to the point that it no longer glows, it will | emit longer wavelength radiation |
Ultraviolet light carries more energy than infrared radiation. | true |
Total internal reflection | all of these are true |
Today, light is understood to be adequately explained | as having both eave and particle behavior |
The slower light travels in a given medium, the greater the index of refraction. | true |
The sky appears to be blue because | blue light has short wavelengths and is scattered most |
The sky appears blue due to the light reflected from the oceans | false |
The radiation from the Sun is most intense near the yellow-green wavelength. | true |
The photoelectric effect could not be adequately explained with a wave model of light because | the energy of the ejected electrons did not depend upon the intensity |
The image formed by a plane mirror is | virtual |
The change in the direction of light as it passes through the boundary between two media is called refraction | true |
The Sun appears reddish as it sets because | more of the shorter, bluer wavelengths have been scattered away |
Polarized light vibrates | only in one plane |
Max Planck discovered that the blackbody radiation emitted by vibrating molecules | appeared to come in multiples of certain fixed amounts |
Longer wavelengths are affected more by a prism or water droplets than are the shorter wavelengths | false |
Interference is a property of light most easily explained by the particle model | false |
Interference can be most easily explained in terms of the | wave model of light |
Green grass absorbs | all light but green light |
Glare is light that tends to be polarized predominantly in the horizontal plane | true |
An image that does not have light rays coming from the image, but is the result of your brain's interpretations of light rays is called a | virtual image |
A prism separates the colors of sunlight into a spectrum because | each wavelength of light has its own index of refraction |
A luminous object is an object that | produces light |
A bird lands on a non-insulated, 80,000-volt high line. Will it receive a shock? | false |
A decibel noise level of 40 would be most likely found | on a typical day in the library |
A neutral atom gains one or more electrons and is now called a | negative ion |
A ratio of joules per coulomb (J/C) is also know of as a(an) | volt |
A sound wave that moves through the air is | pulses of increased and decreased air pressure |
A stationary source emits a sound at a constant frequency. If you run toward the source the frequency you hear will be | higher |
An electric current is measured in units of | amp |
An object becomes positively charged by gaining protons. | false |
Charge moving through a wire produces a magnetic field around the wire. | true |
Which of the following is true about waves A and B? | B has a higher frequency than A |
If you steadily pushed the bar magnet through a coil of wire as shown, | a constant current would flow through the wire |
During a track and field meet, the time difference between seeing the smoke from a starter's gun and hearing the "bang" would be less | on a warmer day |
Earth's north magnetic pole | is a magnetic south pole |
If v = λf, then how are λ and f related? | λ is inversely proportional to f. |
If you double the distance between two charged objects, you reduce the electrical force by a factor of four | true |
If you multiply amps × volts the answer will be in units of | power |
If you were to mechanically rotate the armature in an electric motor | the motor would behave like a generator |
Reverse the direction of a current in a wire, and the magnetic field around the wire will | have a reverse north pole direction |
Sound waves in air | all of the above |
The attractive force between two unlike charges has the same strength as the repulsive force between two like charges. | true |
The bending of a wave at the boundary between two media is called | refraction |
The characteristic of a sound wave that you interpret as volume is related to | amplitude |
The electrical force is much weaker than the force of gravity | false |
The frequency of a vibration is measured in units of | cycles per second |
The higher the frequency of a sound wave | the higher the pitch |
The magnitude of the resistance of a wire depends on | all of these are true |
The range of normal human hearing is | 20 to 20,000 Hz |
The ratio of work done to charge that is moved by a battery is a(an) | volt |
The resistance of an extension cord varies directly with the length of the cord. | true |
The restoring force of a spring is proportional to the displacement of the object at the end | true |
The size of a current in a conductor depends on the _____ as well as the voltage. | resistance |
The strength of a magnetic field around a current-carrying wire varies directly with the | amperage of the current |
The time that is required for a vibrating object to complete one full cycle is called the | period |
The unit of electric charge is called a(an) | coulomb |
The wave front of a refracted sound bends toward | cooler air |
Through which medium will sound travel most rapidly? | vacuum |
Transverse mechanical waves can pass through | solids |
Two sound waves of unequal amplitudes with different frequencies will result in | alternation of loudness of sound known as beats |
Two in-phase sound waves with the same amplitude and frequency arrive at the same place at the same time, resulting in | a new sound wave with greater amplitude |
Two out-of-phase sound waves with the same amplitude and frequency arrive at the same place at the same time, resulting in | cancellation of the two sound waves |
Waves that move through air are transverse. | false |
A 10 degree temperature change on the Fahrenheit scale would be equivalent to what size change on the Celsius scale? | 5.6 |
A car is traveling twice as fast as an identical car. How much more work will be needed to stop the car traveling twice as fast? | four times as much |
A gas that is usually found in the liquid phase is called a | vapor |
A heat engine is designed to | convert heat into mechanical energy |
A spring-loaded paper clamp exerts a force of 2 N on 10 sheets of paper it is holding tightly together. Is the clamp doing work as it holds the papers together? | false |
An abundant but dirty energy source is | coal |
Conduction best takes place in a | solid |
Convection best takes place in a | fluid |
Evaporation occurs more rapidly at a higher temperature because | higher temperature means higher kinetic energy |
If you want to move heat from a region of cooler temperature to a region of warmer temperature, you must supply energy. This is described by the | second law of thermodynamics |
In the equation: Q = mc∆t, the c stands for the | specific heat |
Kinetic energy refers to | energy of motion |
Liquid water at 0˚C has to give up energy in order to become ice at 0˚C. | true |
Molecules in a solid | are held in nearly fixed positions by strong attractive forces |
More molecules are returning to the liquid state than are leaving the liquid state. This process is called | condensation |
Nearly all of the energy consumed today is provided by petroleum, coal, hydropower and nuclear sources | true |
Radiation is the only method of heat transfer that can take place in a | vacuum |
Solids have a greater strength of attraction between its molecules than liquids. | true |
Temperature is a measure of the amount of heat stored in a substance | false |
The Celsius core body temperature of an average, healthy human is nearest to | 37 |
The degrees on the Celsius scale are larger than degrees on the Fahrenheit scale. | true |
The energy required to warm one gram of water by one Celsius degree is called a | calorie |
The energy supplied to a system in the form of heat, minus the work done by the system, is equal to the change in internal energy. This statement describes the | first law of thermodynamics |
The evaporation of water cools the surroundings and the condensation of this vapor | warms the surroundings |
The increase in potential energy caused by lifting an object can be calculated by multiplying its weight by its change in height. | true |
The molecules of a gas are much farther apart than molecules in a solid or liquid. | true |
The nutritionist's Calorie is really a kilocalorie. | true |
The process by which solids vaporize without first becoming a liquid is called | sublimation |
The rate at which work is done is | power |
The specific heat of copper is roughly three times as great as the specific heat of gold. Which of the following is true? | A piece of copper stores three times as much heat at the same temperaure |
The transfer of heat that occurs when energy moves from molecules to molecule is called | conduction |
The water in a swimming pool is cooler than the surrounding sidewalk because | has a higher specific heat |
Two students stand poised to leap off a high dive structure into the swimming pool below. Student B is twice as massive as student A. Which of the following is true? | Student B did twice as much work climbing to the top of the structure |
According to PE=mgh, gravitational potential energy is the same thing as | work against a vertical change of position |
Water molecules move back and forth between the liquid and gaseous phases | at all times |
What form of heat transfer will warm your body without warming the air in a room? | radiation |
When a light bulb is rated at 60 W, it means that | each second, the bulb converts 60J of electrical energy, to heat and light |
The watt W is a unit of | power |
Which of the following is a renewable energy source? | biodiesel |
Which one of the following has an appropriate unit? | all of the above |
Which path would result in more work accomplished in moving a box to the same spot on a table? | All would be equal |
Which temperature scale does not have arbitrarily assigned reference points? | Kelvin |
A block of iron is transported to the moon. Which of the following is true? | The mass remains the same, but the weight decreases |
A cannon ball and a bowling ball were dropped at the same time from the top of a building. At the instant before the balls hit the sidewalk, the cannon ball has greater | momentum |
A cannonball is fired straight up at 50 m/s. Neglecting air resistance, when it returns to its starting point, its speed is | 50 m/s |
A car moving at 60 mi/h comes to a stop in 10 s when the driver slams on the brakes. In this situation, what does 60 mi/h represent? | Initial speed |
A car traveling at 20 mph on a curved exit ramp has a constant velocity. | false |
Acceleration occurs when an object undergoes | any of the above |
After being released, a ball thrown straight down from a bridge would have an acceleration of | 9.8 m/s2 |
An object accelerates when its speed or direction changes. | true |
An object is moving in a straight line at unchanging speed. This means that | all forces on the object are balanced |
For a constant mass the acceleration of an object is directly proportional to the applied force. | true |
From the equation w = mg, it is apparent that weight is equivalent to a(an) | force |
How fast an object is moving in a particular direction is described by | velocity |
If a 16 lb bowling ball and a 10 lb bowling ball are dropped from the 5th floor at the same time the heavier ball will reach the ground first. | false |
If a net force applied to an object doubles, then its | acceleration doubles |
Ignoring air resistance, a falling object will have a speed of 9.8 m/s at the end of 1 s and will fall a distance of | 4.9 m |
Ignoring air resistance, the velocity of a falling object | is constantly increasing |
Neglecting air resistance, a ball in freefall near Earth's surface will have | increasing speed and constant acceleration |
The difference in speed and velocity is that a measure of velocity must include | direction |
The newton is a unit of | force |
The pound is an English unit of measure; its SI counterpart is the | newton |
The product of the mass (m) and velocity (v) of an object is known as the | momentum |
The speed calculated from the distance traveled during an entire trip and the elapsed time is a(an) | average speed |
The tendency of a moving object to remain in unchanging motion in the absence of an unbalanced force is called | inertia |
Which if the following is not a unit of acceleration | m/s |
Which of the following is not a unit of speed? | g/L |
A condition that lifts a parcel of air to form cumulus clouds is | all of the above |
A cyclone is centered about a | region of low pressure |
A parcel of air that rises undergoes | cooling by expansion |
A peneplain is | a nearly flat rolling plain produced by erosion |
A psychrometer measures | relative humidity |
A rock that experiences plastic strain in response to stress | cannot return to its original shape when the stress is relieved |
A stream in its youth exhibits which of the following sets of characteristics? | steep gradient and a V-shaped valley |
A warm front forms when | a warm air mass advances over a mass of cooler air |
A wind deposit that often makes productive farmland is | loess |
An airplane flying at 35,000 feet is above what percent of Earth's atmosphere? | 75% |
Brief periods of showers are usually associated with which cloud type? | cumulus |
Carrying rock fragments to a new location is called | transportation |
Compared to an earthquake of magnitude 5, an earthquake of magnitude 7 | produces 100 times as much ground movement |
Deposits of bulldozed rocks that remain after a glacier melts are called | moraines |
Dew is more likely to form | all of the above |
Dissolving a rock in acid is the equivalent of | chemical weathering |
Frost is more likely to form | on objects with greater surface area |
Glaciers form when | snow accumulates to form ice, which begins to flow |
Hot air rising from the equatorial regions cools and descends to form | a belt of dry, high-pressure air |
How does the average amount of water that returns to the oceans by precipitation compare to the water that leaves by evaporation? | evaporation is greater than precipitation |
Longer periods of drizzle, rain or snow are usually associated with which cloud type? | stratus |
Normal atmospheric pressure is enough to support a column of mercury approximately | 76.0 cm high |
On a clear, calm night, you would expect the air in a valley to be | cooler than that on a hillside |
On the eastern side of mountains in Oregon and Washington the air tends to | be warm and dry |
People have found the Principle of Uniformity difficult to accept because they | all of the above |
Picking up small pieces of smashed rock is called | erosion |
Seismic waves are produced when rocks | rupture or break under stress |
The Columbia Plateau in Washington, Idaho and Oregon | is made of many layers of basalt |
The Sierra Nevada in California is a classic example of | faulting and upthrust |
The atmospheric concentration of carbon dioxide is regulated by | all of the above |
The chief difference between fog and a cloud is | the altitude of the tiny water droplets |
The greenhouse effect results in warmer temperatures near the surface because | some of the energy that would ordinarily escape is re-radiated toward the surface |
The main volcanic mountains are those associated with | diverging plate boundaries |
The point of initial rock movement along a fault during an earthquake is called the | focus |
The principle components of Earth's atmosphere are nitrogen, oxygen and | argon |
The red soils of Oklahoma and Georgia are due to the presence of | iron oxides |
The way a given rock responds to a stress depends on | all of the above |
The wind chill factor | measures the effect of low temperature and wind on humans |
There are greater temperature extremes in North Dakota than in the state of Washington because | there is no ocean near North Dakota |
Ventifacts are | rocks sculpted by wind abrasion |
Weathering involves the | mechanical and chemical breakup of rocks |
When a stream flows into a body of water it often forms a | |
When subjected to stress, rocks at great depths and high temperature tend to undergo | plastic strain |
When water vapor in the atmosphere condenses to liquid water, | a cloud forms |
Which cloud type is usually associated with the arrival of a cold front? | towering cumulus |
Which of the following is not considered to be a form of precipitation? | dew |
Which of the following materials is least susceptible to chemical weathering? | quartz |
Which of the mountain-building processes is most responsible for the features of the Rocky Mountains? | compressional folding |
Which sequence of processes occurs in the correct order? | weathering, erosion, transportation |
Your ears "pop" when your plane descends because | air is moving from the outside into behind your eardrum |
A current that moves parallel to the shore in the surf zone is called a | longshore current |
A layer of heavy clay after a rain would be | neither porous nor permeable |
A watershed is | the land area drained by a stream |
About what is the average concentration of salts in Earth's oceans? | 3.5% |
All of the following are features of ocean basins except | submarine canyons |
An object floating on the surface when a waves passes | moves up and forward, then down and backward |
Compared to the amount of surface water the amount of water stored in groundwater is | roughly 25 times as great |
At what point would waves whose wavelength is 20 m begin to experience friction with the bottom? | C |
Considering only available sunlight and the ability to dissolve gases, the most abundant plant life should be found in a | cool, relatively shallow ocean |
Dense, high salinity water from the Atlantic Ocean flows into the Mediterranean Sea, making it one of the saltier seas. | false |
Of the total water supply, what is the amount that is available for human consumption and agriculture? | less than 1% |
Plant life in the upper, sunlit water tends to reduce the concentration of carbon dioxide and increase the concentration of dissolved oxygen gas. | true |
Surface ocean currents are generally driven by | the prevailing winds |
The Gulf of Mexico is a shallow sea of the | Atlantic Ocean |
The average daily water consumption in the United States is roughly ____ liters/day | 5,700 |
The characteristics of ocean waves are influenced by | all of the above |
The greatest volume of water is moved by the | the Gulf Stream |
The largest freshwater reservoir in the world is | glaciers and ice caps |
The two most common ions in seawater are sodium and | chlorine |
The water table is an underground layer of water that tends to follow the topography of the surface. | false |
The water that evaporates from lakes and streams is fresh, whereas water evaporating from the oceans is salty. | false |
The water that runs in permanent streams | comes from groundwater that has seeped into the stream channel |
Waves "break" as they approach a shore due to the friction between the bottom and the moving water | true |
Which of the following statements about seamounts is false? | iceland is an example of a giant seamount in the Atlantic Ocean |
Which of the following statements about the continental shelf is false? | it is the transition between the continent and the deep ocean basins |
A sound wave that moves through the air is | pulses of increased and decreased air pressure |
Consider the diagram of two waves in the same medium: up and down | amplitude |
Consider the diagram of two waves in the same medium: top of one wave to top of next wave | wavelength |
In order to be operational, a complete electric circuit must contain a source of energy, a device that does work, and | a conductor from the source to the working device and another conductor back to the source |
The electric field lines in the diagram below indicate that (the face picture) | 1 is a (+) and 2 is a (-) charge |
The north end of a magnetic compass needle does not always point to the geographic North Pole because | the geographic and magnetic North Poles are not in the same place |
The strength of a magnetic field around a current-carrying wire varies directly with the | amperage of the current |
The wave front of a refracted sound bends toward | cooler air |
Two in-phase sound waves with the same amplitude and frequency arrive at the same place at the same time, resulting in | a new sound wave with greater amplitude |
Two out-of-phase sound waves with the same amplitude and frequency arrive at the same place at the same time, resulting in | cancellation of the two sound waves |
When the trough of one wave arrives at the same time and place as the crest of otherwise identical wave | destructive interference occurs |
While fishing in a boat on a lake one afternoon, a speedboat roars by. You note that you bob up and down five times in 20 seconds. The frequency of this train of water waves is | 0.25 Hz |
A flower pot falls off a window ledge 10 m above the ground. Its kinetic energy as it hits the ground is | All of the above |
A pendulum is pulled back to position a, then released. Where is its kinetic energy the maximum? | C (in the middle) |
Molecules in a solid | are held in nearly fixed positions by strong attractive forces |
More molecules are returning to the liquid state than are leaving the liquid state. This process is called | condensation |
The force exerted when doing work by lifting an object against gravity is measured in units of | N |
What are the units for the work is done by a newton of force acting through a meter of distance? | Joule |
When water vapor condenses to a liquid | it releases heat to the surroundings |
Which energy source produces no pollutants? | geothermal steam |
Which one of the following can only be measured during the process of being gained or lost? | heat |
Which of the following is not a solar technology? | geothermal hot water |
A 1 kilometer length is the same as how many meters? | 1000 |
A student believes that cobwebs form from dust since they always seem to appear when housekeeping chores are ignored. This student has made a statement that is | conjecture |
A tentative scientific explanation which may or may not be rejected upon further experimentation is called a | hypothesis |
According to the scientific method, what needs to be done to move beyond conjecture or simple hypotheses in a person's understanding of their physical surroundings? | conduct a controlled experiment |
Equations are used to | all of the above |
Imagine a 10 g chunk of aluminum (ρ = 2.7 g/cm3) and a 10 g chunk of iron (ρ = 7.9 g/cm3). Which of the following is true? | the chunk of iron is more massive than the chunk of aluminum |
In general, scientific investigations have which activities in common? | collect observations, develop explanations, tests explanations |
In the text, the equation V = tk is used to describe the relationship between the volume of a gas tank and the time required to fill it. The symbol "k" | is a proportionality constant |
Measured properties that have different values at different times are | called variables |
Measurement information used to describe something is called | data |
Measurement is the process of comparing a __________ to a well-defined __________. | property -- referent |
Measurement is used to accurately | all of the above |
Misleading people into believing that something has scientific validity when it does not is | pseudoscience |
One-half liter of water is the same volume as | 500 cm3 |
Statistical tests on the result of an experiment show a cause and effect relationship each time the experiment is repeated. These experimental results are said to be | reliable |
Suppose a cube of Jello is cut into two pieces. What property stays the same comparing the original piece with one of the new pieces? | density |
The SI standard unit for mass is the | kilogram |
The basic means of acquiring understanding in the sciences is | experimental evidence |
The metric measurement that means one-hundredth of a meter is one | centimeter |
The property of volume is a measure of | how much space an object occupies |
When something cannot be directly observed, it can be represented by a | model |
When two variables increase or decrease together in the same ratio they | are in direct proportion |
Which measure in the metric system is defined by using an object for a referent? | mass |
Which of the following is not a unit of density? | L/kg |
Which one of the following is not a fundamental property? | weight |