The Best AP Physics 1 Review Questions &
Detailed Answers 2024
Acceleration, a - ANS The rate of change in velocity; the change in velocity
over time.
acceleration due to gravity - ANS Acceleration of an object as a result of
gravity.
average acceleration - ANS The change in velocity divided by the time over
which it changes.
average velocity - ANS Displacement divided by time over which
displacement occurs.
deceleration - ANS Acceleration in the direction opposite to velocity;
acceleration that results in a decrease in velocity.
dependent variable - ANS The variable that is being measured; usually
plotted along the y-axis.
displacement, Δx - ANS The change in position of an object.
distance, d - ANS The magnitude of displacement between two positions.
distance traveled - ANS The total length of the path traveled between two
positions.
elapsed time - ANS The difference between the ending time and beginning
time.
,
free-fall - ANS The state of movement that results from gravitational force
only.
independent variable - ANS The variable that the dependent variable is
measured with respect to; usually plotted along the x-axis.
instantaneous acceleration - ANS Acceleration at a specific point in time.
instantaneous speed - ANS Magnitude of the instantaneous velocity.
intantaneous velocity - ANS Velocity at a specific instant, or the average
velocity over an infinitesimal time interval.
kinematics - ANS The study of motion without considering its causes.
model - ANS A simplified description that contains only those elements
necessary to describe the physics of a physical situation.
position, x - ANS The location of an object at a particular time.
scalar - ANS A quantity that is described by magnitude; but not direction.
slope - ANS The difference in y-value the difference in x-value of two points
on a straight line.
time - ANS Change, or the interval over which change occurs.
vector - ANS A quantity that is described by both magnitude and direction.
y-intercept - ANS The y-value when x=0, or when the graph crosses the y-
axis.
,
- Δx=(v0+v/2)t
- v=v0+at
- Δx=v0t+1/2at^2
- v^2=v0^2+2aΔx - ANS The 4 kinematics equations (with constant
acceleration):
-position-time graphs
-velocity-time graphs
-acceleration-time graphs - ANS The 3 motion graphs:
velocity, nothing - ANS The slope of a position-time graph is _________, and
the area under the line is __________.
acceleration, displacement - ANS The slope of a velocity-time graph is
_________, and the area under the line is __________.
nothing, change in velocity - ANS The slope of an acceleration-time graph is
_________, and the area under the line is __________.
-v0
-v
-a
-Δx
-t - ANS The 5 motion variables:
air resistance - ANS A frictional force that slows the motion of objects as they
travel through the air; when solving basic physics problems, air resistance
assumed to be zero.
, analytical method - ANS The method of determining the magnitude and
direction of a resultant vector using the Pythagorean Theorem and
trigonometric identities.
classical relativity - ANS The study of relative velocities in situations where
speeds are less than 1% the speed of light--that is, less than 3000 km/s.
commutative - ANS Refers to the interchangeability of order in a function;
vector addition is commutative because the order in which vectors are added
does not affect the final sum.
component (of a 2-D vector) - ANS A piece of a vector that points in either
the vertical or horizontal direction; every 2-D vector can be expressed as a
sum of two vertical and horizontal vector components.
direction (of a vector) - ANS The orientation of a vector in space.
head-to-tail method - ANS A method of adding vectors in which the tail of
each vector is placed at the head of the previous vector.
kinematics - ANS The study of motion without regard to mass or force.
magnitude (of a vector) - ANS The length or size of a vector; magnitude is a
scalar quantity.
motion - ANS Displacement of an object as a function of time.
projectile - ANS An object that travels through the air and experiences only
acceleration due to gravity.
projectile motion - ANS The motion of an object that is subject only to the
acceleration of gravity.
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