AP Physics 1 Exam with correct
answers A+ Graded 2026/2027 version
Displacement (Δx) - correct answer>>>-Net change in position
-Measured in meters (m)
Δx = x(f) - x(i)
Velocity (v) - correct answer>>>-Speed and direction
-Measured in meters per second (m/s)
average v = Δx/t
Acceleration (a) - correct answer>>>-Rate of change of velocity w/ respect to time
-Measured in meters per second squared (m/s^2)
average a = Δv/t
Speeding up vs. Slowing Down - correct answer>>>-Speeding up occurs when velocity
and acceleration have the same sign
-Slowing down occurs when velocity and acceleration have opposite signs
Position vs. Time Graph - correct answer>>>-Slope represents average velocity
-Object changes direction when graph crosses x-axis
Velocity vs. Time Graph - correct answer>>>-Slope represents average acceleration
-Area represents displacement
Acceleration vs. Time Graph - correct answer>>>-Area represents change in velocity
Scalars - correct answer>>>Quantities with only a size/magnitude (ex: speed, mass,
length, temperature, time, distance, energy, etc.)
Vectors - correct answer>>>Quantities with both a size and direction (ex: displacement,
velocity, position, acceleration, force, etc.)
Projectile Motion - correct answer>>>-Horizontal and vertical components are
independent of each other
-Complementary angles travel same horizontal distance
-Larger angles travel higher and spend more time in air, while smaller angles have
greater horizontal velocities
Force (F) - correct answer>>>-A push or pull
-Measured in Newtons (N)
, Newton's 1st Law - correct answer>>>An object will move at a constant velocity in a
frictionless, airless vacuum unless another force is exerted on it
Inertia - correct answer>>>-property of an object that resists a change in motion
-measured in mass
Newton's 2nd Law - correct answer>>>Net force = mass x acceleration
Newton's 3rd Law - correct answer>>>Every action has an equal and opposite reaction
Normal Force (Fn) - correct answer>>>A contact force between force between two hard
surfaces
Weight - correct answer>>>-Force of gravity on an object
-Depends on mass of object and strength of gravitational field
-Measured in Newtons (N)
Mass - correct answer>>>-How much stuff an object is made of
-Mass is independent of location of object
-Measured in kilograms (kg)
Static Friction (Fs) - correct answer>>>Force that resists motion of two objects that are
stationary relative to one another
Fs (max) = Us x Fn
Kinetic Friction (Fk) - correct answer>>>Friction when two objects slide against each
other
Fk = Uk x Fn
Hooke's Law - correct answer>>>Fs = kΔx, where k is the spring constant
Momentum (p) - correct answer>>>p = mv
-Measured in kg x m/s
-momentum is conserved in collisions and explosions
Impulse (J) - correct answer>>>J = Fnet Δt = Δp
-Measured in N x s
Elastic Collisions - correct answer>>>-Momentum and kinetic energy are conserved
-Can use equation v1(i) - v2(i) = v2(f) - v1(f)
Inelastic Collisions - correct answer>>>-Momentum is conserved BUT kinetic energy is
not conserved
-Collision is completely inelastic if objects stick together
Translational Kinetic Energy (K) - correct answer>>>-Energy of objects in motion
answers A+ Graded 2026/2027 version
Displacement (Δx) - correct answer>>>-Net change in position
-Measured in meters (m)
Δx = x(f) - x(i)
Velocity (v) - correct answer>>>-Speed and direction
-Measured in meters per second (m/s)
average v = Δx/t
Acceleration (a) - correct answer>>>-Rate of change of velocity w/ respect to time
-Measured in meters per second squared (m/s^2)
average a = Δv/t
Speeding up vs. Slowing Down - correct answer>>>-Speeding up occurs when velocity
and acceleration have the same sign
-Slowing down occurs when velocity and acceleration have opposite signs
Position vs. Time Graph - correct answer>>>-Slope represents average velocity
-Object changes direction when graph crosses x-axis
Velocity vs. Time Graph - correct answer>>>-Slope represents average acceleration
-Area represents displacement
Acceleration vs. Time Graph - correct answer>>>-Area represents change in velocity
Scalars - correct answer>>>Quantities with only a size/magnitude (ex: speed, mass,
length, temperature, time, distance, energy, etc.)
Vectors - correct answer>>>Quantities with both a size and direction (ex: displacement,
velocity, position, acceleration, force, etc.)
Projectile Motion - correct answer>>>-Horizontal and vertical components are
independent of each other
-Complementary angles travel same horizontal distance
-Larger angles travel higher and spend more time in air, while smaller angles have
greater horizontal velocities
Force (F) - correct answer>>>-A push or pull
-Measured in Newtons (N)
, Newton's 1st Law - correct answer>>>An object will move at a constant velocity in a
frictionless, airless vacuum unless another force is exerted on it
Inertia - correct answer>>>-property of an object that resists a change in motion
-measured in mass
Newton's 2nd Law - correct answer>>>Net force = mass x acceleration
Newton's 3rd Law - correct answer>>>Every action has an equal and opposite reaction
Normal Force (Fn) - correct answer>>>A contact force between force between two hard
surfaces
Weight - correct answer>>>-Force of gravity on an object
-Depends on mass of object and strength of gravitational field
-Measured in Newtons (N)
Mass - correct answer>>>-How much stuff an object is made of
-Mass is independent of location of object
-Measured in kilograms (kg)
Static Friction (Fs) - correct answer>>>Force that resists motion of two objects that are
stationary relative to one another
Fs (max) = Us x Fn
Kinetic Friction (Fk) - correct answer>>>Friction when two objects slide against each
other
Fk = Uk x Fn
Hooke's Law - correct answer>>>Fs = kΔx, where k is the spring constant
Momentum (p) - correct answer>>>p = mv
-Measured in kg x m/s
-momentum is conserved in collisions and explosions
Impulse (J) - correct answer>>>J = Fnet Δt = Δp
-Measured in N x s
Elastic Collisions - correct answer>>>-Momentum and kinetic energy are conserved
-Can use equation v1(i) - v2(i) = v2(f) - v1(f)
Inelastic Collisions - correct answer>>>-Momentum is conserved BUT kinetic energy is
not conserved
-Collision is completely inelastic if objects stick together
Translational Kinetic Energy (K) - correct answer>>>-Energy of objects in motion
