Kinematics
A change in position
Displacement
A push or a pull is a(n)
Force
Ability of an object to produce a change in itself or its surroundings
Energy
The product of the object’s mass and the object’s velocity; measured in kg·m/s.
Momentum
The branch of science that studies matter and energy and their relationships.
Physics
Ratio of the displacement to the time interval during which the change occurred
average velocity
A perpendicular contact force exerted by a surface on another object
Normal force
Rate at which energy is transformed
Power
Product of the average force on an object and the time interval over which the force acts
Impulse
The patterns of investigation procedures.
Scientific Method
The rate at which an object's velocity changes
acceleration
The acceleration of an object is directly proportional to the net force on it and inversely proportional to its mass.
Newton's second law
In a closed, isolated system, energy is not created or destroyed, but rather, is conserved.
Law of Conservation of Energy.
A system that does not gain or lose mass
Closed system
A possible explanation for a problem using what you know and observe.
Hypothesis
An object shot through the air, such as a football, that has independent vertical and horizontal motions and, after receiving an initial thrust, travels through the air only under the force of gravity
Projectile
An object at rest will remain at rest, and an object that is moving will continue to move in a straight line with constant speed, if and only if the net force acting on the object is zero.
Newton's first law
Calculated by multiplying force, the distance through which the force is applied, and the cosine of the angle between the force and displacement.
Work
The momentum of any closed, isolated system does not change
Law of Conservation of Momentum
A relationship in which the dependent variable varies linearly with the independent variable
Linear Relationship
A coordinate system from which motion is viewed
Reference frame
A pair of forces that are equal in strength but opposite in direction and act on different objects.
interaction pair
States that the work done on an object equals the change in energy of the object.
Work-Energy Theorem
The impulse on an object equals the change in the object's momentum
Impulse-Momentum Theorem
A representation of an idea, event, structure, or object to help people better understand it.
Model