PHYS 250 BUNDLED EXAMS 2026
COMPLETE QUESTIONS AND VERIFIED
ANSWERS GRADED A+
⩥ Instantaneous speed. Answer: The speed at any instant.
⩥ Average speed. Answer: The total distance traveled divided by the
time of travel.
⩥ Velocity. Answer: An object's speed and direction of motion.
⩥ Vector quantity. Answer: A quantity that has both magnitude and
direction.
⩥ Scalar quantity. Answer: A quantity that has only a magnitude, not a
direction.
⩥ Acceleration. Answer: The rate at which velocity changes with time;
the change in velocity may be in magnitude, or direction, or both.
⩥ Free fall. Answer: Motion under the influence of gravity only.
, ⩥ Force. Answer: Any push or pull exerted on an object, measured in
newtons (or pounds in the British system).
⩥ Friction. Answer: The resistive force that opposes the motion or
attempted motion of an object either past another object with which it is
in contact or through a fluid.
⩥ Mass. Answer: The quantity of matter in an object. More specifically,
it is the measure of the inertia or sluggishness that an object exhibits in
response to any effort made to start it, stop it, deflect it, or change in any
way its state of motion.
⩥ Weight. Answer: The force that an object exerts on a supporting
surface (or, if suspended, on a supporting rope), which is often, but not
always, due to the force of gravity.
⩥ Kilogram. Answer: The fundamental SI unit of mass. One kilogram
(symbol kg) is the mass of 1 liter (1 L) of water at 4°C.
⩥ Newton. Answer: The SI unit of force. One newton (symbol N) is the
force that will give an object of mass 1 kg an acceleration of 1 m/s2.
COMPLETE QUESTIONS AND VERIFIED
ANSWERS GRADED A+
⩥ Instantaneous speed. Answer: The speed at any instant.
⩥ Average speed. Answer: The total distance traveled divided by the
time of travel.
⩥ Velocity. Answer: An object's speed and direction of motion.
⩥ Vector quantity. Answer: A quantity that has both magnitude and
direction.
⩥ Scalar quantity. Answer: A quantity that has only a magnitude, not a
direction.
⩥ Acceleration. Answer: The rate at which velocity changes with time;
the change in velocity may be in magnitude, or direction, or both.
⩥ Free fall. Answer: Motion under the influence of gravity only.
, ⩥ Force. Answer: Any push or pull exerted on an object, measured in
newtons (or pounds in the British system).
⩥ Friction. Answer: The resistive force that opposes the motion or
attempted motion of an object either past another object with which it is
in contact or through a fluid.
⩥ Mass. Answer: The quantity of matter in an object. More specifically,
it is the measure of the inertia or sluggishness that an object exhibits in
response to any effort made to start it, stop it, deflect it, or change in any
way its state of motion.
⩥ Weight. Answer: The force that an object exerts on a supporting
surface (or, if suspended, on a supporting rope), which is often, but not
always, due to the force of gravity.
⩥ Kilogram. Answer: The fundamental SI unit of mass. One kilogram
(symbol kg) is the mass of 1 liter (1 L) of water at 4°C.
⩥ Newton. Answer: The SI unit of force. One newton (symbol N) is the
force that will give an object of mass 1 kg an acceleration of 1 m/s2.
