PHY 111 FINAL EXAM 2026 LATEST UPDATE GRADED A+
Theory – Correct Answer a well-substantiated explanation of some aspect of the natural
world
Hypothesis – Correct Answer a proposed scientific explanation for a set of observations
Johannes Kepler – Correct Answer German astronomer who first stated laws of planetary
motion (1571-1630)
Ptolemy – Correct Answer Alexandrian astronomer who proposed a geocentric system of
astronomy that was undisputed until Copernicus (2 nd century AD)
Polaris – Correct Answer the north star
Copernicus – Correct Answer Polish astronomer who produced a workable model of the
solar system with the sun in the center (1473-1543)
Gram – Correct Answer a metric unit of mass equal to one thousandth of a kilogram
Meter – Correct Answer the basic unit of length adopted under the Systeme International
d’Unites (approximately 1.094 yards)
Scientific method – Correct Answer a series of steps followed to solve problems including
collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions
Newton’s Law of Gravity – Correct Answer Law stating any two objects are attracted to each
other; the magnitude of the attraction depends on the masses of the two objects and the
distance between the two objects.
, Gravity is slightly less on a mountain and therefore you weigh less – w = m x g – Correct
Answer Why is your weight less on a mountain top compared to sea level?
Scalar quantity – Correct Answer A quantity that has only magnitude
Vector quantity – Correct Answer quantity having both magnitude and direction
Speed/velocity – Correct Answer rate at which an object covers distance
Acceleration of gravity – Correct Answer 9.8 m/s2
Acceleration – Correct Answer (physics) a rate of change of velocity
Newton’s First Law of Motion – Correct Answer Law: “An object at rest will remain at rest,
and an object moving at a constant velocity will continue moving at a constant velocity,
unless it is acted upon by an unbalanced force.” Another name is Law of Inertia
Newton’s Second Law of Motion – Correct Answer Law: The acceleration of an object
depends on the mass of the object and the amount of force applied.
Newton’s Third Law of Motion – Correct Answer Law: Whenever one object exerts a force on
a second object, the second object exerts an equal and opposite force on the first.
Inertia – Correct Answer (physics) the tendency of a body to maintain is state of rest or
uniform motion unless acted upon by an external force
Theory – Correct Answer a well-substantiated explanation of some aspect of the natural
world
Hypothesis – Correct Answer a proposed scientific explanation for a set of observations
Johannes Kepler – Correct Answer German astronomer who first stated laws of planetary
motion (1571-1630)
Ptolemy – Correct Answer Alexandrian astronomer who proposed a geocentric system of
astronomy that was undisputed until Copernicus (2 nd century AD)
Polaris – Correct Answer the north star
Copernicus – Correct Answer Polish astronomer who produced a workable model of the
solar system with the sun in the center (1473-1543)
Gram – Correct Answer a metric unit of mass equal to one thousandth of a kilogram
Meter – Correct Answer the basic unit of length adopted under the Systeme International
d’Unites (approximately 1.094 yards)
Scientific method – Correct Answer a series of steps followed to solve problems including
collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions
Newton’s Law of Gravity – Correct Answer Law stating any two objects are attracted to each
other; the magnitude of the attraction depends on the masses of the two objects and the
distance between the two objects.
, Gravity is slightly less on a mountain and therefore you weigh less – w = m x g – Correct
Answer Why is your weight less on a mountain top compared to sea level?
Scalar quantity – Correct Answer A quantity that has only magnitude
Vector quantity – Correct Answer quantity having both magnitude and direction
Speed/velocity – Correct Answer rate at which an object covers distance
Acceleration of gravity – Correct Answer 9.8 m/s2
Acceleration – Correct Answer (physics) a rate of change of velocity
Newton’s First Law of Motion – Correct Answer Law: “An object at rest will remain at rest,
and an object moving at a constant velocity will continue moving at a constant velocity,
unless it is acted upon by an unbalanced force.” Another name is Law of Inertia
Newton’s Second Law of Motion – Correct Answer Law: The acceleration of an object
depends on the mass of the object and the amount of force applied.
Newton’s Third Law of Motion – Correct Answer Law: Whenever one object exerts a force on
a second object, the second object exerts an equal and opposite force on the first.
Inertia – Correct Answer (physics) the tendency of a body to maintain is state of rest or
uniform motion unless acted upon by an external force
