AC HPAT Physics UPDATED ACTUAL
Questions and CORRECT Answers
DIstance - CORRECT ANSWER -· Distance is a scalar quantity that refers to "how much
ground an object has covered" during its motion.
Displacement - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER -· Acceleration is the rate of change of velocity with
time.
Instantenous velocity - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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
What is the difference between constant, instantaneous, and average speed? - CORRECT
ANSWER -· constant speed is where the speed is the same throughout and instantaneous
speed is speed given at any moment and average speed is a total distance traveled divided by the
amount of time it took to travel it.
Newtons Laws - CORRECT ANSWER -Newton's first law states that every object will
remain at rest or in uniform motion in a straight line unless compelled to change its state by the
action of an external force. The second law states that the acceleration of an object is dependent
upon two variables - the net force acting upon the object and the mass of the object.
The third law states that for every action (force) in nature there is an equal and opposite reaction.
Coefficient of friction - CORRECT ANSWER -· A coefficient of friction is a value that
shows the relationship between two objects and the normal reaction between the objects that are
involved. ... The coefficient of friction depends on the objects that are causing friction. The value
is usually between 0 and 1 but can be greater than 1.
Torque - CORRECT ANSWER -Torque is a measure of the force that can cause an object
to rotate about an axis. Just as force is what causes an object to accelerate in linear kinematics,
torque is what causes an object to acquire angular acceleration. Torque is a vector quantity
Mechanical advantage - CORRECT ANSWER -· Mechanical advantage is the ratio of the
force produced by a machine to the force applied to it, used in assessing the performance of a
machine.
Questions and CORRECT Answers
DIstance - CORRECT ANSWER -· Distance is a scalar quantity that refers to "how much
ground an object has covered" during its motion.
Displacement - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER -· Acceleration is the rate of change of velocity with
time.
Instantenous velocity - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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
What is the difference between constant, instantaneous, and average speed? - CORRECT
ANSWER -· constant speed is where the speed is the same throughout and instantaneous
speed is speed given at any moment and average speed is a total distance traveled divided by the
amount of time it took to travel it.
Newtons Laws - CORRECT ANSWER -Newton's first law states that every object will
remain at rest or in uniform motion in a straight line unless compelled to change its state by the
action of an external force. The second law states that the acceleration of an object is dependent
upon two variables - the net force acting upon the object and the mass of the object.
The third law states that for every action (force) in nature there is an equal and opposite reaction.
Coefficient of friction - CORRECT ANSWER -· A coefficient of friction is a value that
shows the relationship between two objects and the normal reaction between the objects that are
involved. ... The coefficient of friction depends on the objects that are causing friction. The value
is usually between 0 and 1 but can be greater than 1.
Torque - CORRECT ANSWER -Torque is a measure of the force that can cause an object
to rotate about an axis. Just as force is what causes an object to accelerate in linear kinematics,
torque is what causes an object to acquire angular acceleration. Torque is a vector quantity
Mechanical advantage - CORRECT ANSWER -· Mechanical advantage is the ratio of the
force produced by a machine to the force applied to it, used in assessing the performance of a
machine.
