2024 WGU C165 ( Unit 1 -5 ) Physical Sciences | New Full Questions and Answers ( Included ) 100% Correct
2024 WGU C165 Unit 1 Physical Sciences
New Full Questions and Answers ( Included ) 100% Correct
- The study of energy and forces of matter
Answer: Physics - The study of the properties of matter and how matter changes; atoms,molecules and their
interactions to form substances
Answer: Chemistry - the study of the moon, stars, and other objects in space
Answer: astronomy - The scientific study of earth and the universe around it including structure,materials and
processes
Answer: Earth Science - The experimental factor that is manipulated; the variable whose effect isbeing studied.
Answer: independent variable - The measurable effect, outcome, or response in which the research isinterested.
Answer: dependent variable - Structuresthatscientists build to representsomething else.
Answer: Physical Model - a verbal or graphical explanation for how a system works or is organized
Answer: -conceptual model - A description of a system using mathematical concepts and language likean equation.
Answer: mathematical model - a computer program that models an event or object
Answer: computer model - Only falsifiable statements can be subject to scientific inquiry
Answer: principle offalsification - a statement that is worded so that it is falsifiable, or disprovable, byexperimental results
Answer: falsifiable statement - Concise statement that summarizes the results of many observations andexperiments
Answer: Law - A well-tested explanation for a wide range of observations or experimentalresults.
Answer: scientific theory - The theory that the universe originated in a huge explosion that releasedall matter and
energy.
Answer: Big Bang Theory - Sections of the Earth’s crust that move due to convection currents.
Answer: tectonic plates - The hypothesis that the continents slowly move across Earth’s surface.
Answer: -continental drift - International Systemof units based on the metric system and units derivedfrom the metric
system
Answer: SI system - kilogram (kg)
Answer: SI unit for mass - meter (m)
Answer: SI unit for length - seconds (s)
Answer: SI unit for time - Kelvin (K)
Answer: SI unit for temperature - prefix used in the International System to indicate a power of 10
Answer: SI prefix - centi (c)
Answer: SI prefix meaning 0.01 - milli (m)
Answer: SI prefix meaning 0.001 - kilo (k)
Answer: SI prefix meaning 1,000 - Micro
Answer: SI prefix meaning .000001 - Nano (n)
Answer: SI prefix meaning .000000001 - Mega (M)
Answer: SI prefix meaning 1,000,000 - The distance an object travels per unit of time
Answer: Speed - Amount of space occupied by an object
Answer: Volume - Mass per unit volume
Answer: Density - Mass divided by volume D=m/v
Answer: Density formula - a relationship in which one variable increases with an increase in anothervariable or vice
versa
Answer: direct relationship - a relationship in which one variable decreases when another variableincreases and vice
versa
Answer: inverse relationship - defined in terms of standards
Answer: base quantity - a physical aspect described by a combination of base quantities
Answer: derivedquantity - The speed of an object in a particular direction
Answer: Velocity - Change in velocity divided by the time it takes for the change to occur
Answer: -Acceleration
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2024 WGU C165 Unit 2 Scientific Inquiry
New Full Questions and Answers ( Included ) 100% Correct
- Chemistry
Answer: The study of the properties of matter and how matter changes - Earth Science
Answer: the study of earth and space - Astronomy
Answer: The study of the moon, stars, and other objects in space - Science
Answer: An organized way of gathering and analyzing evidence about the naturalworld. - Precision
Answer: the exactness of a measurement - SI
Answer: International System of Units - Controlled Experiment
Answer: An experiment in which only one variable is manipulated at a time. - independent variable
Answer: The experimental factor that is manipulated;the variablewhose effect is being studied. - dependent variable
Answer: The outcome factor; the variable that may change inresponse to manipulations of the
independent variable. - Control
Answer: In an experiment, the standard that is used for comparison - Field Study
Answer: a research investigation carried out in a naturally occurring setting - Laboratory Study
Answer: a research investigation conducted in a controlled settingexplicitly designed to hold
events constant - Models
Answer: representations of objects or systems
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2024 WGU C165 Unit 3 Physics
New Full Questions and Answers ( Included ) 100% Correct
- Speed
Answer: Distance traveled per unit time - Velocity
Answer: Speed in a given direction - Acceleration
Answer: rate of change of velocity - Distance
Answer: How far an object moves - Displacement
Answer: the change in position of an object - Force
Answer: A push or a pull - net force
Answer: The combination of all forces acting on an object - Newton’s first law of motion
Answer: an object in motion will remain in motion unlessacted upon by another force - Mass
Answer: the amount of matter in an object - Inertia
Answer: the tendency to keep the same motion - Newton’s Second Law of Motion
Answer: The acceleration produced by the net forceon an object is proportional to the net
force, and inversely proportional to the mass - Newton’sThird Law of Motion
Answer: For every action there is an equal and oppositereaction. States that whenever one
object exerts a force on a second object, the second object exerts a force of the same
magnitude in the opposite direction on thefirst object. - Friction
Answer: A force that opposes motion between two surfaces that are in contact - Gravity
Answer: A force that pulls objects toward each other - Gravitational Force
Answer: a force that attracts any objects with mass - Momentum
Answer: The product of an object’s mass and velocity - Law of Conservation of Momentum
Answer: a scientific law that states that momentum is conserved when two or more objects
collide. - Work
Answer: resultsin the displacement of an object in the direction of an applied force - Energy
Answer: The ability to do work or cause change - potential energy
Answer: stored energy - kinetic energy
Answer: the energy an object has due to its motion - gravitational potential energy
Answer: energy that an object has due to its heightabove the ground - chemical potential energy
Answer: the energy stored in the chemical bonds of asubstance - elastic potential energy
Answer: Energy stored by something that can stretch or com-press - Electrical Energy
Answer: energy that is carried by moving charged particles, such aselectrons - Electromagnetic energy
Answer: The energy of light and other forms of radiation.
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2024 WGU C165 Unit 4 Chemistry
New Full Questions and Answers ( Included ) 100% Correct
- Matter
Answer: Anything that has mass and takes up space - Atom
Answer: Smallest particle of an element - Proton
Answer: A subatomic particle that has a positive charge and that is found in thenucleus of an
atom - Neutron
Answer: A subatomic particle that has no charge and that isfound in the nucleusof an atom - Electron
Answer: A subatomic particle that has a negative charge - Nucleus
Answer: Center of an atom - Electron Cloud
Answer: a region around the nucleus of an atom where electrons arelikely to be found - Valence Electrons
Answer: electrons in the outermost shell - Element
Answer: pure substance that consists entirely of one type of atom - Atomic Number
Answer: the number of protons in an atom - Atomic Symbol
Answer: A one or two letter abbreviation for an element - Compound
Answer: A substance made up of atoms of two or more different elementsjoined by chemical
bonds - Chemical Bonds
Answer: An attraction between two atoms resulting from a sharing ofouter-shell electrons or
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2024 WGU C165 Unit 5 Earth & Sky
New Full Questions and Answers ( Included ) 100% Correct
- Newton’s Law of Universal Gravitation
Answer: The law that says every object in theuniverse attracts every other object, and that the
force is affected by mass and distance: the greater the mass of an object, the greater the
attraction; the farther apart the objects, the weaker the attraction. - Nebula
Answer: a cloud of gas and dust in space - Nuclear Fusion
Answer: The process by which two or more small nuclei fuse to make abigger nucleus - Star
Answer: A ball of hot gas, primarily hydrogen and helium, that undergoes nuclearfusion. - Galaxy
Answer: a system of millions or billions of stars, together with gas and dust, heldtogether by
gravitational attraction. - Milky Way Galaxy
Answer: the galaxy containing our solar system - Orbit
Answer: The path of an object as it revolves around another object in space - Solar System
Answer:sun, planets, and all the other objects that revolve around the sun - Planets
Answer: a celestial body moving in an elliptical orbit around a star. - Asteroids
Answer: a small rocky body orbiting the sun - Inner Planets: the planets closest to the Sun
Answer: Mercury, Venus, Earth, and Mars - outer planets
Answer: Jupiter, Saturn, Uranus, & Neptune. Called Gas Giants. - Moons
Answer: Smaller objects that orbit a planet - Comets
Answer: a celestial object consisting of a nucleus of ice and dust and, whennear the sun, a
“tail” of gas and dust particles pointing away from the sun. - Axis of Rotation
Answer: an imaginary line about which a turning body such as earthrotates - Crust
Answer: Earth’s outermost layer. - Mantle
Answer: The layer of hot, solid material between Earth’s crust and core. - Outer Core
Answer: A layer of molten iron and nickel that surrounds the inner core ofEarth - Inner Core
Answer: A dense sphere of solid iron and nickel at the center of Earth - Physical weathering
Answer: the mechanical breakdown of rocks and minerals - Chemical Weathering
Answer: The process that breaks down rock through chemicalchanges - Erosion
Answer: The process by which wind, water, ice, or gravity transports soil andsediment from
one location to another - Deposition
Answer: Process in which sediment is laid down in new locations. - Wind Erosion
Answer: when the wind picks up dirt and dust and movesit from one placeto another - Sand Dune
Answer: A hill of sand, made and shaped by wind