AC HPAT CERTIFICATION EVALUATION
QUESTIONS AND CORRECT ANSWERS
PRACTICE PACK
●● Displacement
Answer: · Displacement is a vector quantity that refers to "how far out
of place an object is"; it is the object's overall change in position.
●● Position
Answer: · Position is a place where someone or something is located or
has been put. In physics, position is usually a number on an axis. ...
Position is a vector, because direction matters. But distance is a scalar.
Distance is how far you've traveled.
●● Speed
Answer: · Speed is the distance traveled per unit of time. It is how fast
an object is moving. Speed is the scalar quantity that is the magnitude of
the velocity vector. It doesn't have a direction.
●● Acceleration
Answer: · Acceleration is the rate of change of velocity with time.
●● Instantenous velocity
, Answer: · Instantaneous velocity is the velocity of an object in motion at
a specific point in time. This is determined similarly to average velocity,
but we narrow the period of time so that it approaches zero. If an object
has a standard velocity over a period of time, its average and
instantaneous velocities may be the same.
●● A force
Answer: a force is any interaction that, when unopposed, will change the
motion of an object. A force can cause an object with mass to change its
velocity (which includes to begin moving from a state of rest), i.e., to
accelerate. Force can also be described intuitively as a push or a pull
●● Net force
Answer: · Net force is the vector sum of forces acting on a particle or
body. The net force is a single force that replaces the effect of the
original forces on the particle's motion. It gives the particle the same
acceleration as all those actual forces together as described by the
Newton's second law of motion.
●● Uniform vs. non-uniform motion
Answer: · Difference between uniform and non-uniform motion with
examples. In Uniform motion, movement of a body is along the straight
line with constant speed. In non uniform motion, movement of a body is
along the straight line with variable speed. In uniform motion, body
covers equal distance in equal interval of time
QUESTIONS AND CORRECT ANSWERS
PRACTICE PACK
●● Displacement
Answer: · Displacement is a vector quantity that refers to "how far out
of place an object is"; it is the object's overall change in position.
●● Position
Answer: · Position is a place where someone or something is located or
has been put. In physics, position is usually a number on an axis. ...
Position is a vector, because direction matters. But distance is a scalar.
Distance is how far you've traveled.
●● Speed
Answer: · Speed is the distance traveled per unit of time. It is how fast
an object is moving. Speed is the scalar quantity that is the magnitude of
the velocity vector. It doesn't have a direction.
●● Acceleration
Answer: · Acceleration is the rate of change of velocity with time.
●● Instantenous velocity
, Answer: · Instantaneous velocity is the velocity of an object in motion at
a specific point in time. This is determined similarly to average velocity,
but we narrow the period of time so that it approaches zero. If an object
has a standard velocity over a period of time, its average and
instantaneous velocities may be the same.
●● A force
Answer: a force is any interaction that, when unopposed, will change the
motion of an object. A force can cause an object with mass to change its
velocity (which includes to begin moving from a state of rest), i.e., to
accelerate. Force can also be described intuitively as a push or a pull
●● Net force
Answer: · Net force is the vector sum of forces acting on a particle or
body. The net force is a single force that replaces the effect of the
original forces on the particle's motion. It gives the particle the same
acceleration as all those actual forces together as described by the
Newton's second law of motion.
●● Uniform vs. non-uniform motion
Answer: · Difference between uniform and non-uniform motion with
examples. In Uniform motion, movement of a body is along the straight
line with constant speed. In non uniform motion, movement of a body is
along the straight line with variable speed. In uniform motion, body
covers equal distance in equal interval of time
