204 Questions
Which of the following is the best description of a theory in science?
A statement that explains a wide range of observations, supported by a large body of scientific evidence
What is the relationship between the independent and dependent variables in an experiment?
The independent variable is the variable that is changed on purpose in an experiment.
What is the principle of falsification in science?
The principle that only statements that can be proven false can be subject to scientific inquiry.
Which of the following is a key characteristic of science?
Science studies the natural world and uses testable ideas.
What is the relationship between the independent and dependent variables in a direct relationship?
Increasing the independent variable increases the dependent variable.
What is the term for the measure of the average kinetic energy per particle?
Thermal energy
Which celestial body is held together by its own gravity and releases light through nuclear fusion?
Star
What is the name for rocks formed through heat and pressure causing minerals to change?
Metamorphic rocks
Which process is responsible for the transportation or removal of material on Earth's surface?
Erosion
In undeformed sedimentary rocks, which principle states that each bed is younger than the one below it?
Principle of superposition
What is the term for the forces that combine to produce a net force of 0?
Inertia
Which law states that for every action, there is an equal and opposite reaction force?
Newton's Third Law
What is the formula for work done on an object in the direction of the applied force?
$force \times displacement$
Which type of collision is described as one where the total kinetic energy is conserved?
Elastic collision
What type of waves require a medium (such as air, water) to travel through?
Mechanical waves
What is the main difference between a physical change and a chemical change?
Physical changes involve the formation of new substances, while chemical changes only alter the appearance of matter.
What type of bond is formed in an ionic compound?
Ionic bond
Which layer of Earth's atmosphere contains the ozone layer?
Stratosphere
What defines an element in chemistry?
A pure substance made of only one kind of atom
In the periodic table, what term is used to describe a vertical column?
Family
What is the relationship between speed and time?
Inverse Relationship: Increasing speed decreases time
Which type of friction occurs between moving objects?
Kinetic Friction
What is the defining characteristic of an elastic collision?
Total kinetic energy is conserved
Which atmospheric layer contains the ozone layer?
Stratosphere
What defines a chemical compound?
Combination of different elements in a fixed ratio
Which of the following is NOT a characteristic of the scientific method?
Relying solely on anecdotal evidence
Which type of convergent boundary occurs between two continental plates, resulting in the formation of tall mountain ranges without volcanic activity?
Continental to continental boundary
In an experiment, which variable is intentionally changed to observe its effect on the dependent variable?
Independent variable
Which atmospheric layer contains the ozone layer, which protects Earth from harmful ultraviolet radiation?
Stratosphere
Which of the following statements best describes the principle of falsification in science?
Only statements that can be disproven by empirical evidence are subject to scientific inquiry
Which type of bond involves the sharing of valence electrons?
Covalent bond
What type of boundary occurs when tectonic plates move apart?
Divergent boundary
In geology, which principle states that undeformed sedimentary layers are older at the bottom?
Law of Superposition
What type of front occurs when warm air moves over cooler air?
Warm front
Which type of elements tend to lose electrons according to the periodic table?
Metals
What happens in a high-pressure system in terms of cloud cover?
Reduces clouds
Which type of boundary occurs when two tectonic plates grind past each other horizontally?
Transform boundary
What is an air mass characterized by?
'Uniform properties' throughout it
'Tall mountains and earthquakes' are associated with which type of plate boundary?
'Continental to Continental'
Which bond involves the free movement of electrons among metal atoms?
Metallic bond
The study of forces, energy, and motion is called chemistry.
False
The variable that changes because of the independent variable is called the control variable.
False
The principle of falsification states that only falsifiable statements can be subject to scientific inquiry.
True
A mathematical model is a model that treats physical objects or phenomena using mathematical methods.
True
Velocity is a combination of speed and mass.
False
The base unit of temperature is the joule.
False
In an elastic collision, the total kinetic energy of the system is not conserved.
False
Linear momentum is defined as the mass of an object multiplied by its acceleration.
False
Potential energy stored in chemical bonds is an example of gravitational potential energy.
False
Kinetic friction occurs between two objects touching but not moving against each other.
False
Longitudinal waves are waves where the oscillation is perpendicular to the direction the wave is traveling.
False
The law of conservation of energy states that energy can be created or destroyed in different forms.
False
Fluid resistance is a type of friction when an object moves through a gas or liquid.
True
Mechanical waves can travel through a vacuum.
False
Oscillation refers to a non-repetitive motion around a center point or equilibrium.
False
Net force is the sum of all forces acting on an object and can never be zero.
False
Nuclear fusion is a process where hydrogen and other nuclei fuse together into smaller nuclei.
False
The outer core of the Earth is made mostly of solid nickel-iron.
False
Physical weathering is the alteration or breakdown of rock or soil through chemical processes.
False
Sedimentary rocks are formed by the cooling and solidification of magma.
False
The Precambrian Era consists of the Hadean, Archean, and Proterozoic eons.
True
The principle of superposition states that in undeformed sedimentary rocks, each bed is older than the one below it.
False
An ionic bond is formed between two positively charged atoms.
False
Metals are elements that tend to gain electrons.
False
Metalloids have properties that are a mix between metals and nonmetals.
True
In a chemical reaction, the reactants are the substances formed at the end of the reaction.
False
The Stratosphere is the layer of Earth's atmosphere immediately above the Exosphere.
False
A physical change involves a change in chemical composition.
False
Sound waves can travel through a vacuum.
False
Atoms are made up of a nucleus and electrons that orbit around it.
False
Covalent bonds involve the transfer of valence electrons between atoms.
False
Matter can exist in three states: solid, liquid, and gas.
False
Elements in the same group of the periodic table have the same number of valence electrons.
True
Ionic compounds are formed by the complete transfer of electrons between atoms.
True
Metalloids have electrical conductivity that is $5(3 + 2)$ times higher than that of metals.
False
According to the law of superposition, the oldest sedimentary rock layers are always found at the top of a geological sequence.
False
Divergent plate boundaries are characterized by the formation of deep ocean trenches and volcanic mountain ranges.
False
High-pressure systems are associated with the formation of clouds and precipitation.
False
Velocity is the rate of change of position with respect to time.
True
The troposphere is the outermost layer of Earth's atmosphere.
False
The Law of Conservation of Energy states that energy can be created or destroyed.
False
The period of a wave is the time taken for one complete oscillation.
True
Kinetic energy is the energy an object possesses due to its position.
False
Friction is a force that always opposes the relative motion between two surfaces in contact.
True
The atomic number of an element is the number of neutrons in its nucleus.
False
The stratosphere is the layer of the atmosphere that contains the ozone layer.
True
The law of conservation of momentum states that momentum is conserved in all collisions.
True
The base unit of temperature is the Celsius.
False
In geology, a transform boundary is where tectonic plates push into each other, causing large quakes.
False
The troposphere is the layer of Earth's atmosphere where auroras happen and the ISS flies.
False
Transpiration is the evaporation of water from the leaves of a plant.
True
Front is a term used to describe a boundary between two or more air masses.
True
Low pressure systems are areas of dense air that sink, develop in cold areas, and remove clouds.
False
Chemistry is the study of forces, energy, and motion.
False
Hypothesis is a concise statement supported by evidence describing a widespread pattern in nature.
False
Physical models represent physical phenomena like atomic structures.
False
Convection cells are circular patterns of rising cold air and sinking warm air.
False
Infiltration is the flow of water from the subsurface into the land surface.
False
Match the following terms with their definitions:
Law of conservation of matter = Matter cannot be created/destroyed, but can be converted between forms through physical or chemical changes Coefficient = Number used to indicate the ratio of chemicals in a reaction, written before chemical formula Temperature = Measure of the average kinetic energy per particle Thermal energy = Total energy in the particles of an object
Match the following celestial bodies with their descriptions:
Nebula = A cloud of gases and particles Star = Celestial body held together by its own gravity that releases light and other forms of radiant energy generated by nuclear fusion Galaxy = Collection of hundreds of billions of stars clustered together by gravity Asteroids = Very small, rocky bodies that orbit the sun
Match the following Earth layers with their descriptions:
Crust = Thin, outermost rocky shell at the surface of the Earth Mantle = Thickest layer of the Earth made of hot, solid rock, 84% of volume of the planet Outer core = Outer half of the Earth's core made of mostly molten iron Inner core = Inner half of the Earth's core made of solid nickel-iron
Match the following geological processes with their definitions:
Weathering = Alteration or breakdown of rock or soil Erosion = Mechanism responsible for the transportation or removal of material Glacier = Slowly moving mass of ice formed by accumulation and compaction of snow that flows over time Deposition = Process in which soil, sediment, or rocks are added to a landform
Match the following rock types with their descriptions:
Sedimentary rocks = Rocks made up of weathered particles that have been cemented together into hard rock Igneous rocks = Rocks formed by lava or magma Metamorphic rocks = Rocks formed through heat and pressure causing their minerals to change Rock cycle = Various processes that change rocks from one form to another
Match the following geological eras with their characteristics:
Precambrian Era = Consisting of Hadean, Archean, and Proterozoic eons Paleozoic Era = Era consisting of greatest diversification of life on earth Mesozoic Era = Era when dinosaurs thrived Cenozoic Era = Current era, age of mammals
Match the following terms related to waves with their definitions:
Compression = Region of longitudinal wave where particles are close together Rarefaction = Region of longitudinal wave where particles are far apart Crest = The highest point in a wave above equilibrium Trough = The lowest point in a wave under equilibrium
Match the following terms related to waves with their descriptions:
Amplitude = The distance between a wave's equilibrium and crest/trough in a transverse wave, or how compressed/expanded the medium becomes in a longitudinal wave Wavelength = The horizontal distance after which the wave repeats Period = The amount of time needed for one full oscillation/one wave to pass Frequency = Number of wave oscillations in a given period of time
Match the following terms related to chemistry with their definitions:
Matter = Anything that takes up space and has mass Atom = The basic building block of matter Valence electrons = The electrons in the outermost shell of an atom Element = A pure substance made of only one kind of atom, defined by its proton count
Match the following terms related to chemistry with their descriptions:
Atomic number = The number of protons in the nucleus of an atom Chemical bonds = The attractive forces that hold atoms together Organic compound = Compounds that contain carbon and hydrogen Inorganic compounds = Compounds that are not organic compounds
Match the following terms related to matter with their definitions:
Pure substance = A chemical containing only one type of element or compound Mixture = A combination of two or more substances that are not chemically combined and not present in a specific, fixed ratio Heterogeneous mixture = A mixture in which pure substances are unevenly distributed throughout the mixture Homogeneous mixture = A mixture in which substances are evenly distributed throughout the mixture
Match the following terms related to physics:
Inelastic collision = A collision in which the total kinetic energy is not conserved Elastic collision = A collision in which the total kinetic energy is conserved Mechanical waves = Type of waves that require a medium to travel through Electromagnetic waves = Waves with both an electric and magnetic component
Match the following concepts related to energy:
Potential energy = Energy that is stored Kinetic energy = The energy objects have because they are moving Gravitational potential energy = Energy an object has due to its height above the ground Chemical potential energy = Energy that is stored in the chemical bonds in a substance
Match the following terms related to forces:
Net force = The sum of all forces acting on an object Friction = The force that opposes the motion of an object on which it acts Gravity = Attractive force between objects directly proportional to their masses and inversely proportional to the square of their distance Linear momentum = Name for the mass of an object times its velocity
Match the following laws and principles in physics:
Newton's first law = An object in motion remains in motion unless acted on by a net force Newton's second law = Net force = mass x acceleration (F = ma) Newton's third law = When one object exerts a force on a second object, the second object exerts a force of the same magnitude in the opposite direction on the first object Law of conservation of momentum = Momentum is conserved when two or more objects collide
Match the following types of friction:
Kinetic friction = Friction between two objects moving against each other Static friction = Friction between two objects touching but not moving against each other Fluid resistance = Friction when an object moves through a gas or liquid Elasticity = The amount of bounce an object has after a collision
Match the following wave types:
Transverse wave = Wave where the oscillation is perpendicular to the direction the wave is traveling Longitudinal wave = Wave where the oscillation occurs along the direction the wave is traveling Oscillation = Repetitive motion around a center point or equilibrium Equilibrium = Position or state to which an oscillating object eventually returns
Match the following concepts related to work and energy:
Work = Term for the displacement of an object in the direction of an applied force by using/converting energy Energy = Capacity to do work or cause change Law of conservation of energy = Energy cannot be created/destroyed, only transferred/converted Law of conservation of momentum = Momentum is conserved when two or more objects collide
Match the following types of potential energy:
Gravitational potential energy = Energy an object has due to its height above the ground Chemical potential energy = Energy stored in chemical bonds in a substance Elastic potential energy = Energy stored in stretched springs, rubber bands, etc. Electromagnetic energy = Energy carried by electromagnetic waves
Match the following laws and principles in physics:
Law of conservation of momentum = Momentum is conserved when two or more objects collide Law of conservation of energy = Energy cannot be created/destroyed, only transferred/converted Newton's first law = An object in motion remains in motion unless acted on by a net force Newton's second law = Net force = mass x acceleration (F = ma)
Match the following wave types:
Mechanical waves = Type of waves that require a medium (air, water, etc.) to travel through, cannot travel through a vacuum Transverse wave = Wave where oscillation is perpendicular to direction wave is traveling Longitudinal wave = Wave where oscillation occurs along direction wave is traveling Electromagnetic waves = Waves with both electric and magnetic components.
Match the following terms with their definitions:
Principle of falsification = Only falsifiable statements can be subject to scientific inquiry Hypothesis = A testable statement about how something in nature works Law = A concise statement that is supported by scientific evidence and repeated experiments, describes a widespread pattern in nature (what) Theory = A statement that explains a wide range of observations, supported by a large body of scientific evidence (how/why)
Match the following units with their quantities:
Meter = Base unit of length Kilogram = Base unit of mass Second = Base unit of time Kelvin = Base unit of temperature
Match the following models with their descriptions:
Physical model = A model of a physical phenomenon, such as a planetary system Conceptual model = A model used to visualize things that cannot be seen, such as atoms Mathematical model = A model that treats physical objects/phenomena using mathematical methods Computer model = A detailed, complex model calculated by a computer
Match the following relationships with their descriptions:
Direct relationship = A relationship between two variables where increasing one increases the other, and vice versa Inverse relationship = A relationship between two variables where increasing one decreases the other, and vice versa Speed = The name for the distance traveled divided by an interval of time Velocity = A combination of speed and direction
Match the following terms with their definitions:
Independent variable = What you change in an experiment on purpose Dependent variable = The variable that changes because of an independent variable Control variable = The variable(s) you don't want to study, need to be either eliminated or kept constant Observational study = When systems are observed as they appear in nature, researchers do not attempt to change them
Match the following science disciplines with their descriptions:
Physics = The study of forces, energy, motion Chemistry = The study of atoms and molecules, their structures, and their interactions to form substances Earth science = The study of the Earth's structure and composition, and processes that change Earth
Match the following tectonic plate boundaries with their characteristics:
Convergent boundary = Plates push into each other, causing large quakes Divergent boundary = Plates are separating, with volcanoes and few, weak quakes Transform boundary = Plates are grinding past each other, causing quakes but almost no volcanoes Subduction = One plate sinks into the mantle below another plate
Match the following atmospheric layers with their descriptions:
Troposphere = The lowest layer of Earth's atmosphere, where weather occurs Ozone layer = Protective layer in atmosphere that shields earth from UV radiation Stratosphere = The second-lowest layer of Earth's atmosphere, contains the ozone layer Mesosphere = The layer above the stratosphere, where meteors burn up
Match the following terms related to water with their definitions:
Transpiration = Evaporation of water from the leaves of a plant Infiltration = Flow of water from the land surface into the subsurface Groundwater = Water that is in the ground Runoff = Water that is not soaked into the ground
Match the following weather systems with their characteristics:
High pressure system (anticyclone) = Area of dense air that sinks and warms, removes clouds Low pressure system (depression) = Area of less dense air that rises and cools, creates clouds Air mass = Large body of air with same temperature, humidity, and pressure Front = Boundary between two or more air masses
Match the following scientific concepts with their descriptions:
Principle of Falsification = Only falsifiable statements are subject to scientific inquiry Hypothesis = Testable statement about natural phenomena Law = Concise statement supported by evidence describing a widespread pattern in nature Theory = Explanation of observations supported by substantial evidence
Match the following geological principles with their definitions:
Law of Superposition = Undeformed sedimentary layers are older at the bottom Crosscutting Relationships = Rock layers must exist before being cut through Convergent Boundary = Plates push together Divergent Boundary = Plates move apart
Match the following bond types with their descriptions:
Ionic Bond = Transfer of electrons Covalent Bond = Sharing of valence electrons Metallic Bond = Electrons move freely among metal atoms Warm Front = Warm air over cool air
Match the following atmospheric systems with their characteristics:
High Pressure System = Dense air, sinking, removes clouds Low Pressure System = Less dense air, rising, creates clouds Group = Vertical column in the periodic table Metalloids = Intermediate electrical conductivity
Match the following plate boundary types with their outcomes:
Oceanic to Continental = Deep trenches, volcanic mountain ranges Oceanic to Oceanic = Volcanic islands, earthquakes Continental to Continental = Tall mountains, earthquakes Subduction = Plate sinks into mantle
Match the following terms with their categories:
Reactants = Initial substances in a chemical reaction Products = Substances formed in a chemical reaction Period = Horizontal row in the periodic table Family = Elements with the same valence electrons
Match the following weather phenomena with their definitions:
Air Mass = Large body with uniform properties Front = Boundary between air masses Cold Front = Cold air under warm air Ion = Atom with net electric charge
Match the following wave properties with their descriptions:
Amplitude = Distance from equilibrium to crest or trough in a transverse wave, or compression/expansion in a longitudinal wave Wavelength = Distance after which a wave repeats Period = Time for one full oscillation or wave to pass Frequency = Number of oscillations per unit time
Match the following conservation laws with their definitions:
Law of Conservation of Energy = Energy cannot be created or destroyed, only transferred or converted Law of Conservation of Matter = Matter cannot be created or destroyed, only converted through physical or chemical changes Law of Conservation of Momentum = Momentum is conserved in collisions Law of Conservation of Mass = Mass cannot be created or destroyed, only converted through physical changes
Match the following types of friction with their descriptions:
Kinetic Friction = Friction between moving objects Static Friction = Friction between stationary objects Fluid Resistance = Friction in gases or liquids Rolling Friction = Friction between a rolling object and a surface
Match the following layers of Earth's atmosphere with their characteristics:
Troposphere = Weather layer Stratosphere = Contains ozone layer Mesosphere = Meteors burn up here Thermosphere = Auroras occur; ISS orbits here
Match the following base units with their quantities:
Second = Base unit of time Kelvin = Base unit of temperature Meter = Base unit of distance Kilogram = Base unit of mass
Match the following types of collision with their definitions:
Elastic Collision = Total kinetic energy conserved Inelastic Collision = Total kinetic energy not conserved Perfectly Inelastic Collision = Maximum kinetic energy loss Partially Inelastic Collision = Partial kinetic energy loss
Match the following properties with their descriptions:
Macroscopic Properties = Observed at large scale Microscopic Properties = Observed at small scale, like properties of atoms Intensive Properties = Independent of the amount of substance present Extensive Properties = Dependent on the amount of substance present
Match the following chemistry terms with their definitions:
Element = Pure substance made of one kind of atom Compound = Combination of different elements in a fixed ratio Mixture = Combination of substances not chemically combined Pure Substance = Contains only one type of element or compound
Match the following types of waves with their descriptions:
Transverse Wave = Oscillation perpendicular to wave direction Longitudinal Wave = Oscillation parallel to wave direction Mechanical Wave = Require a medium to travel through Electromagnetic Wave = Include electric and magnetic components, travel through vacuum
Match the following mechanics terms with their definitions:
Velocity = Speed with direction. Acceleration = Change in speed and/or direction. Force = Push or pull with magnitude and direction. Net Force = Sum of all forces acting on an object.
Which of the following is a key characteristic of the scientific method?
Presenting findings for evaluation by other scientists
What is the relationship between the independent and dependent variables in an experiment with an inverse relationship?
Increasing the independent variable decreases the dependent variable
Which type of plate boundary is associated with the formation of tall mountain ranges without volcanic activity?
Convergent boundary between two continental plates
What is the defining characteristic of an elastic collision in physics?
The total kinetic energy of the colliding objects is conserved
Which layer of Earth's atmosphere contains the ozone layer?
Stratosphere
What is the relationship between the independent and dependent variables in a direct relationship?
Increasing the independent variable increases the dependent variable
Which of the following is the best description of the nebula mentioned in the text?
A cloud of gasses and particles that can give rise to the formation of stars and planets
What is the primary function of the $mantle$ layer of the Earth according to the text?
The mantle is the thickest layer of the Earth, made of hot, solid rock, comprising 84% of the planet's volume.
Which of the following is a characteristic of $metamorphic$ rocks?
Metamorphic rocks are formed through heat and pressure which causes their minerals to change.
Which of the following is the best description of the $principle of crosscutting relationships$ mentioned in the text?
If a rock, fault, or other feature cuts through a rock layer, that rock layer must have been pre-existing in order to have been cut through.
Which of the following is a characteristic of $nuclear fusion$?
Nuclear fusion is a process where hydrogen and other nuclei fuse together into larger nuclei.
Which of the following is the best description of a $star$ according to the information provided in the text?
A star is a celestial body that is held together by its own gravity and releases light and other forms of radiant energy generated by nuclear fusion.
What is the term for the layer of Earth's atmosphere immediately above the exosphere?
Mesosphere
Which term refers to the property of matter that allows it to be shaped by pounding without breaking apart?
Malleability
What type of waves require a medium to travel through such as air or water?
Longitudinal waves
Which term refers to a chemical combination of two or more different elements in a fixed ratio?
Compound
What is the term for a row in the periodic table?
Period
Which term describes the ability of an element to lose electrons?
Metals
What is the term for the number of wave oscillations in a given period of time?
Frequency
In chemistry, what is an atom with a net electric charge called?
Ion
Which term describes compounds that contain carbon and hydrogen?
Organic compounds
What type of bond is formed by atoms sharing valence electrons?
Covalent bond
According to Newton's third law, if object A exerts a force on object B, what happens?
Object B exerts a force of the same magnitude in the opposite direction on object A
Which type of energy is associated with the motion of atoms and molecules?
Thermal energy
Which of the following is NOT a type of potential energy?
Kinetic energy
What is the relationship between work and energy?
Work is the transfer of energy from one object to another
In an elastic collision, what is conserved?
Kinetic energy
What is the difference between a transverse wave and a longitudinal wave?
Transverse waves oscillate perpendicular to the direction of wave travel, while longitudinal waves oscillate parallel to the direction of wave travel
According to Newton's second law, what is the relationship between net force, mass, and acceleration?
Net force = mass × acceleration
What force opposes the motion of an object moving through a fluid (gas or liquid)?
Fluid resistance
Which type of friction occurs between two objects that are touching but not moving relative to each other?
Static friction
What is the principle behind the law of conservation of energy?
Energy can be transferred or converted, but it cannot be created or destroyed
Which type of plate boundary is associated with two tectonic plates grinding past each other horizontally?
Transform boundary
In geology, which law states that undeformed sedimentary layers are older at the bottom?
Law of Superposition
What type of air mass is characterized by warm air over cool air in a weather system?
Warm front
Which type of bond involves the sharing of valence electrons between atoms?
Covalent bond
What type of elements tend to lose electrons according to their bonding properties?
Metals
Which type of boundary occurs when plates push together in plate tectonics?
Convergent boundary
What term describes the capacity to do work or cause change?
Energy
Which atmospheric layer is characterized by the presence of auroras and where the International Space Station orbits?
Thermosphere
What does a longitudinal wave's oscillation direction indicate about its movement?
Wave type
Which type of collision conserves total kinetic energy, allowing objects to bounce after impact?
Elastic collision
What property defines a chemical compound?
Definite composition
What is responsible for the force opposing motion between two surfaces in contact?
Frictional force
In chemistry, what type of compound contains carbon and hydrogen atoms?
Organic compound
What term describes repetitive motion around a center point?
$Oscillation$
$Velocity$ is best defined as the rate of change of __________.
$Displacement$ with respect to time
What defines a chemical element in terms of its atomic structure?
Number of protons in the nucleus
Which of the following best describes the process of subduction?
The sinking of one tectonic plate beneath another at a convergent boundary
Which layer of Earth's atmosphere is responsible for absorbing harmful ultraviolet radiation?
Ozone layer
What is the primary mechanism by which groundwater is recharged?
Infiltration of surface water into the ground
In an experiment, which variable is changed to observe its effect on the dependent variable?
Independent variable
Which type of tectonic plate boundary is characterized by the formation of deep ocean trenches and continental volcanic mountain ranges?
Oceanic-to-continental boundary
What scientific concept states that only falsifiable statements are subject to scientific inquiry?
Principle of falsification
In the context of weather systems, what is the primary characteristic of a low-pressure system (depression)?
An area of less dense air that rises and cools, creating clouds
Which type of chemical bond involves the sharing of valence electrons between atoms?
Covalent bond
According to the principle of conservation of momentum, what happens to the total momentum of a closed system during a collision?
The total momentum is always conserved
Which type of wave requires a medium, such as air or water, to propagate?
Mechanical wave
Explore the fundamental aspects of various scientific studies, such as physics, chemistry, and earth science. Learn about the essential attributes of science, variables in experiments, and the process of presenting findings for evaluation by other scientists.
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