AP PHYSICS 1 EXAM WITH ALL CORRECT &
VERIFIED ANSWERS (UPDATED TO PASS)
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
-Measured in joules
K = 1/2 mv^2
Gravitational Potential Energy (Ug) Correct answer--Energy of an object based on its position
-Measured in joules
Ug = mgh
Elastic Potential Energy (Ue) Correct answer--Energy of a spring
-Measured in joules
Ue = 1/2 kx^2
Work (W) Correct answer-W = FΔxcosϴ
W = ΔK
Power (P) Correct answer-The amount of work done over time, measured in Watts (W)
P = W/t
VERIFIED ANSWERS (UPDATED TO PASS)
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
-Measured in joules
K = 1/2 mv^2
Gravitational Potential Energy (Ug) Correct answer--Energy of an object based on its position
-Measured in joules
Ug = mgh
Elastic Potential Energy (Ue) Correct answer--Energy of a spring
-Measured in joules
Ue = 1/2 kx^2
Work (W) Correct answer-W = FΔxcosϴ
W = ΔK
Power (P) Correct answer-The amount of work done over time, measured in Watts (W)
P = W/t
