Used by physicists to explain the most fundamental feature of various phenomena
What are models?
100
The velocity of an object at some instant or at a specific point in the object's path
What is instantaneous velocity?
100
The tendency of an object to resist being moved, or if the object is moving, to resist a change in speed or direction
What is inertia?
100
A quanity that measures the rate at which work is done or energy is transformed
What is power?
100
A quantity defined as the product of the mass and velocity of an object
What is momentum?
200
A set of particles or interacting components considered to be a distinct physical entity for the purpose of study
What is a system?
200
The total displacement divided by the time interval during which the displacement occured
What is average velocity?
200
An action exerted on an object which may change the object's state of rest or motion
What is force?
200
The energy available for use when a deformed elastic object returns to its original configuration
What is the spring constant?
200
The product of the force and the time over which the force acts on an object
What is impulse?
300
Those digits in a measurement that are known with certainty plus the first digit that is uncertain
What are significant figures?
300
A physical quantity that has both magnitude and direction
What is a vector?
300
The force that opposes the movement of two surfaces that are in contact and are sliding over each other
What is kinetic friction?
300
The potential energy stored in the gravitational fields of interacting bodies
What is gravitational potential energy?
300
A collision in which the total momentum and total kinetic energy remain constant
What is an elastic collision?
400
The degree of exactness of a measurement
What is precision?
400
A physical quantity that has magnitude but no direction
What is a scalar?
400
The force that resists the initiation of sliding motion between two surfaces that are in contact and at rest
What is static friction?
400
The energy available for use when an elastic body returns to its original configuration
What is elastic potential energy?
400
A collision in which two objects stick together after colliding
What is a perfectly inelastic collision?
500
A description of how close a measurement is to the correct or accepted value of the quantity measured
What is accuracy?
500
The projections of a vector along the axes of a coordinate system
What are the components of a vector
500
The ratio of the magnitude of the force of friction between two objects in contact to the magnitude of the normal force with which the objects press against each other
What is the coefficient of friction?
500
The physics principle that says the net work done by all the forces acting on an object is equal to the change in the object's kinetic energy
What is the work-kinetic energy theorem?
500
The total momentum of all objects interacting with one another remains constant regardless of the nature of forces between the objects