Definitions
A hypothesis
A force
What scientist proposed that the Earth and other planets moved around the sun?
Copernicus
Potential Energy is?
Energy that is stored and held in readiness
What are the two types of circular motion?
Rotation and Revolution
What is a close agreement held by competent observers who make a series of observations about the same phenomenon?
A fact
What is the combination of all forces acting on an object?
The net force
What scientist proposed the Earth was the center of the universe?
Aristotle
Kinetic Energy is?
The energy of motion
The apparent outward force on a rotating or revolving body is called?
A centrifugal force
What is a synthesis of a large body of information that encompasses well-tested and verified hypotheses about certain aspects of the natural world?
A theory
What are three examples of scalar quantities?
Speed, Time, Area, Volume, Height, Etc.
What is Newton's First Law of Motion?
An object in motion stays in motion, or an object at rest stays at rest, unless acted upon by an nonzero net force.
In physics, Work is defined as?
The product of force times distance
The force directed towards a fixed center that causes an object to follow a circular path is called?
A centripetal force
When a hypotheses is tested over and over again and not contradicted, it is called a?
What is the difference between a scalar and a vector?
A scalar just has a magnitude, a vector has a magnitude and a direction
What is Newton's Second Law of Motion?
Force=Mass times Acceleration
The law of the conversation of energy states that
Energy cannot be created or destroyed. It can be transformed from one form of energy to another.
Tangential Speed depends on?
What is Mechanical Equilbrium?
A state where no physical changes occur
What is the upward force that balances the weight of an object on a surface?
The support force
What is Newton's Third Law of Motion?
For every action, there is an equal and opposite reaction
What are the three types of potential energy?
Elastic Potential Energy, Chemical Energy, and Gravitational Potential Energy
What are the three types of equilibrium related to how an object is balanced?
Unstable Equilibrium, Stable Equilibrium, Neutral Equilibrium