Newton's Laws
This law states than an object will maintain its velocity unless acted on by a net external force
What is Newton's First Law?
This type of force resists motion between two surfaces and is proportional to the normal force
What is friction?
This is the value of g
What is 9.8 m/s2?
This type of quantity has both magnitude and direction
What is a vector?
This physical quantity is the product of mass and velocity
What is momentum?
This drawing shows all forces acting on an object, but not its motion
What is a free-body diagram?
This force acts perpendicular to a surface and balances weight on level ground
What is the normal force?
This type of motion involves moving at a constant speed in one direction
What is uniform motion?
This angle causes a projectile to achieve the maximum horizontal range
What is 45 degrees?
This quantity, defined as force times time, causes a change in momentum
What is impulse?
This law explains why swimmers move forward when pushing backward on the water
What is Newton's Third Law?
This force in a rope acts along the rope and pulls outward from both ends
What is tension?
When velocity is constant, acceleration is this
What is zero?
This projectile motion component remains constant when there is no air resistance
What is horizontal velocity?
This principle explains why two ice skaters pushing apart move in opposite directions with different speeds
What is conservation of momentum?
This quantity is the vector sum of all forces acting on an object and is responsible for acceleration
What is net force?
This type of friction must be overcome in order for motion to occur
What is static friction?
What is a velocity vs time graph?
This quantity is zero for a projectile at the peak of its trajectory
What is vertical velocity?
This type of collision conserves momentum but not kinetic energy
What is an inelastic collision?
With a proportional relationship, doubling the net force on an object with constant mass will double this quantity
What is acceleration?
On an inclined plane with no friction, this component of weight is responsible for accelerating the object down the ramp
What is the parallel component of the weight?
This type of motion occurs when the acceleration is constant and equal to 9.8 m/s2
What is free fall?
The value of this will be equal and opposite at the beginning and end of a projectile's path
What is vertical velocity?
In an elastic collision, these two things are conserved
What are momentum and kinetic energy?