Integrated Physical Science C165 WGU Exam with Verified Answers
1. physics: the study of forces, energy, motion
2. Chemistry: study of atoms and molecules, their structures, and their interactions
to form various substances.
3. Earth Science: Earth's structure and composition, as well as the processes that
change Earth, such as volcanic and seismic activity.
4. astronomy: The study of the moon, stars, and other objects in space
5. Science: An organized way of gathering and analyzing evidence about the natural
world.
6. Precision: a measure of how close a series of measurements are to one another
7. SI: is a scientific method of expressing the magnitudes or quantities of important
natural phenomena. There are seven base units in the system, from w hich other
units are derived. Universal for comparing data.
8. physical science: the sciences concerned with the study of inanimate natural
objects, including physics, chemistry, astronomy, and related subjects.
9. life science: the study of living things
10. controlled experiment: An experiment in which only one variable is manipulat-
ed at a time. Or a condition that is being held constant
11. independent variable: what is being changed
12. dependent variable: what is being measured
13. control: In an experiment, the standard that is used for comparison
14. Observational experiment or study: studies attempt to understand
cause-and-effect relationships. However, unlike experiments, the researcher is not
able to control (1) how subjects are assigned to groups and/or (2) which treatments
each group receives. ... Therefore, a sample survey is an example of an observa-
tional study.
15. field study: a research investigation carried out in a naturally occurring setting
16. laboratory study: Research done in a laboratory
17. Physical Model: A physical representation of an object. Prototypes and appear-
ance models are physical models.
18. conceptual model: a verbal or graphical explanation for how a system works or
is organized
19. mathematical model: one or more equations that represent the way a system
or process works
20. Hypothesis: A testable prediction, often implied by a theory
21. Theory: A hypothesis that has been tested with a significant amount of data.
Explains why something happened.
22. Law: A law in science is a generalized rule to explain a body of observations
in the form of a verbal or mathematical statement. Scientific laws (also known as
,Integrated Physical Science C165 WGU Exam with Verified Answers
natural laws) imply a cause and effect between the observed elements and must
always apply under the same conditions. Explains how it happened not why.
23. Observation: Information obtained through the senses.
24. evidence: proof
25. Data: Facts and statistics collected together for reference or analysis
26. Big Bang Theory: Cosmological model that explains the sudden development
of the universe through expansion from a hot, dense state.
27. plate tectonics: A theory stating that the earth's surface is broken into plates
that move.
28. atomic theory: a theory that states that all matter is composed of tiny particles
called atoms.
29. gram: a metric unit of mass equal to one thousandth of a kilogram.
30. meter: The meter is the basic unit of length in the SI system of units .... The
previous definition of the meter was one ten-millionth of the distance from the
geographic north pole to the equator, measured over the earth's surface in a circle
running through Paris, France.
31. second: SI base unit for time
32. Celsius: Metric unit for measuring temperature; On this scale water freezes at
zero and boils at 100.
33. Kelvin: The SI base unit of temperature
34. liter: Basic unit of volume in the metric system
35. Metric Prefixes: Giga, Mega, Kilo, deci, centi, milli, micro, nano
36. derived unit: A unit defined by a combination of base units
37. direct relationship: a relationship in which one variable increases with an
increase in another variable
38. inverse relationship: a relationship in which one variable decreases when
another variable increases
39. Speed: The distance an object travels per unit of time
40. Velocity: Speed in a given direction
41. Acceleration: the rate at which velocity changes over time; an o bject acceler-
ates if its speed, direction, or both change
42. distance: The length of a path between two points
43. Displacement: Distance and direction of an object's change in position from the
starting point.
, Integrated Physical Science C165 WGU Exam with Verified Answers
44. Balance force: Equal forces acting on one object in opposite dir ection. These
forces then give a 0 net force, causing the object to stay in place.
45. unequal force: unbalanced forces cause a change in motion; speed. and/or
direction. When two forces act in the same direction on an object, the net force
is. equal to the sum of the two forces. When two unequal forces act in opposite
directions.
46. net force: The combination of all forces acting on an object
47. Newton's First Law: An object at rest stays at rest and an object in motion stays
in motion with the same speed and in the same direction unless acted upon by an
unbalanced force.
48. Mass: the amount of matter in an object
49. Inertia: The tendency of an object to resist a change in motion
50. Newton's Second Law: Force equals mass times acceleration
51. Newton's Third Law: For every action there is an equal and opposite reaction
52. Friction: A force that opposes motion between two surfaces that are in contact
53. Gravity: Gravity is the force by which a planet or other body draws objects
toward its center. The force of gravity keeps all of the planets in orbit around the
sun.
54. gravitational force: an attractive force that acts between any two objects
55. Momentum: the force or speed with which something moves
56. law of conservation of momentum: One of the most powerful la ws in physics
is the law of momentum conservation. ... For a collision occurring between object 1
and object 2 in an isolated system, the total momentum of the two objects before
the collision is equal to the total momentum of the two objects after the collision.
57. work: Force exerted on an object that causes it to move
58. Energy: the ability to do work
59. potential energy: Energy that is stored and held in readiness
60. kinetic energy: the energy an object has due to its motion
1. physics: the study of forces, energy, motion
2. Chemistry: study of atoms and molecules, their structures, and their interactions
to form various substances.
3. Earth Science: Earth's structure and composition, as well as the processes that
change Earth, such as volcanic and seismic activity.
4. astronomy: The study of the moon, stars, and other objects in space
5. Science: An organized way of gathering and analyzing evidence about the natural
world.
6. Precision: a measure of how close a series of measurements are to one another
7. SI: is a scientific method of expressing the magnitudes or quantities of important
natural phenomena. There are seven base units in the system, from w hich other
units are derived. Universal for comparing data.
8. physical science: the sciences concerned with the study of inanimate natural
objects, including physics, chemistry, astronomy, and related subjects.
9. life science: the study of living things
10. controlled experiment: An experiment in which only one variable is manipulat-
ed at a time. Or a condition that is being held constant
11. independent variable: what is being changed
12. dependent variable: what is being measured
13. control: In an experiment, the standard that is used for comparison
14. Observational experiment or study: studies attempt to understand
cause-and-effect relationships. However, unlike experiments, the researcher is not
able to control (1) how subjects are assigned to groups and/or (2) which treatments
each group receives. ... Therefore, a sample survey is an example of an observa-
tional study.
15. field study: a research investigation carried out in a naturally occurring setting
16. laboratory study: Research done in a laboratory
17. Physical Model: A physical representation of an object. Prototypes and appear-
ance models are physical models.
18. conceptual model: a verbal or graphical explanation for how a system works or
is organized
19. mathematical model: one or more equations that represent the way a system
or process works
20. Hypothesis: A testable prediction, often implied by a theory
21. Theory: A hypothesis that has been tested with a significant amount of data.
Explains why something happened.
22. Law: A law in science is a generalized rule to explain a body of observations
in the form of a verbal or mathematical statement. Scientific laws (also known as
,Integrated Physical Science C165 WGU Exam with Verified Answers
natural laws) imply a cause and effect between the observed elements and must
always apply under the same conditions. Explains how it happened not why.
23. Observation: Information obtained through the senses.
24. evidence: proof
25. Data: Facts and statistics collected together for reference or analysis
26. Big Bang Theory: Cosmological model that explains the sudden development
of the universe through expansion from a hot, dense state.
27. plate tectonics: A theory stating that the earth's surface is broken into plates
that move.
28. atomic theory: a theory that states that all matter is composed of tiny particles
called atoms.
29. gram: a metric unit of mass equal to one thousandth of a kilogram.
30. meter: The meter is the basic unit of length in the SI system of units .... The
previous definition of the meter was one ten-millionth of the distance from the
geographic north pole to the equator, measured over the earth's surface in a circle
running through Paris, France.
31. second: SI base unit for time
32. Celsius: Metric unit for measuring temperature; On this scale water freezes at
zero and boils at 100.
33. Kelvin: The SI base unit of temperature
34. liter: Basic unit of volume in the metric system
35. Metric Prefixes: Giga, Mega, Kilo, deci, centi, milli, micro, nano
36. derived unit: A unit defined by a combination of base units
37. direct relationship: a relationship in which one variable increases with an
increase in another variable
38. inverse relationship: a relationship in which one variable decreases when
another variable increases
39. Speed: The distance an object travels per unit of time
40. Velocity: Speed in a given direction
41. Acceleration: the rate at which velocity changes over time; an o bject acceler-
ates if its speed, direction, or both change
42. distance: The length of a path between two points
43. Displacement: Distance and direction of an object's change in position from the
starting point.
, Integrated Physical Science C165 WGU Exam with Verified Answers
44. Balance force: Equal forces acting on one object in opposite dir ection. These
forces then give a 0 net force, causing the object to stay in place.
45. unequal force: unbalanced forces cause a change in motion; speed. and/or
direction. When two forces act in the same direction on an object, the net force
is. equal to the sum of the two forces. When two unequal forces act in opposite
directions.
46. net force: The combination of all forces acting on an object
47. Newton's First Law: An object at rest stays at rest and an object in motion stays
in motion with the same speed and in the same direction unless acted upon by an
unbalanced force.
48. Mass: the amount of matter in an object
49. Inertia: The tendency of an object to resist a change in motion
50. Newton's Second Law: Force equals mass times acceleration
51. Newton's Third Law: For every action there is an equal and opposite reaction
52. Friction: A force that opposes motion between two surfaces that are in contact
53. Gravity: Gravity is the force by which a planet or other body draws objects
toward its center. The force of gravity keeps all of the planets in orbit around the
sun.
54. gravitational force: an attractive force that acts between any two objects
55. Momentum: the force or speed with which something moves
56. law of conservation of momentum: One of the most powerful la ws in physics
is the law of momentum conservation. ... For a collision occurring between object 1
and object 2 in an isolated system, the total momentum of the two objects before
the collision is equal to the total momentum of the two objects after the collision.
57. work: Force exerted on an object that causes it to move
58. Energy: the ability to do work
59. potential energy: Energy that is stored and held in readiness
60. kinetic energy: the energy an object has due to its motion
