PHY 111 FINAL EXAM CERTIFICATION TEST
PAPER 2026 COMPLETE SOLUTIONS GRADED
A PLUS
◉ hypothesis.
Answer: a proposed scientific explanation for a set of observations
◉ Johannes Kepler.
Answer: German astronomer who first stated laws of planetary
motion (1571-1630)
◉ Ptolemy.
Answer: Alexandrian astronomer who proposed a geocentric system
of astronomy that was undisputed until Copernicus (2nd century
AD)
◉ Polaris.
Answer: the north star
◉ Copernicus.
Answer: Polish astronomer who produced a workable model of the
solar system with the sun in the center (1473-1543)
,◉ gram.
Answer: a metric unit of mass equal to one thousandth of a kilogram
◉ meter.
Answer: the basic unit of length adopted under the Systeme
International d'Unites (approximately 1.094 yards)
◉ scientific method.
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.
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.
Answer: Why is your weight less on a mountain top compared to sea
level?
◉ Scalar quantity.
, Answer: A quantity that has only magnitude
◉ Vector quantity.
Answer: quantity having both magnitude and direction
◉ Speed/velocity.
Answer: rate at which an object covers distance
◉ Acceleration of gravity.
Answer: 9.8 m/s2
◉ acceleration.
Answer: (physics) a rate of change of velocity
◉ Newton's First Law of Motion.
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.
Answer: Law: The acceleration of an object depends on the mass of
the object and the amount of force applied.
PAPER 2026 COMPLETE SOLUTIONS GRADED
A PLUS
◉ hypothesis.
Answer: a proposed scientific explanation for a set of observations
◉ Johannes Kepler.
Answer: German astronomer who first stated laws of planetary
motion (1571-1630)
◉ Ptolemy.
Answer: Alexandrian astronomer who proposed a geocentric system
of astronomy that was undisputed until Copernicus (2nd century
AD)
◉ Polaris.
Answer: the north star
◉ Copernicus.
Answer: Polish astronomer who produced a workable model of the
solar system with the sun in the center (1473-1543)
,◉ gram.
Answer: a metric unit of mass equal to one thousandth of a kilogram
◉ meter.
Answer: the basic unit of length adopted under the Systeme
International d'Unites (approximately 1.094 yards)
◉ scientific method.
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.
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.
Answer: Why is your weight less on a mountain top compared to sea
level?
◉ Scalar quantity.
, Answer: A quantity that has only magnitude
◉ Vector quantity.
Answer: quantity having both magnitude and direction
◉ Speed/velocity.
Answer: rate at which an object covers distance
◉ Acceleration of gravity.
Answer: 9.8 m/s2
◉ acceleration.
Answer: (physics) a rate of change of velocity
◉ Newton's First Law of Motion.
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.
Answer: Law: The acceleration of an object depends on the mass of
the object and the amount of force applied.
