Physics Quiz #1

A push or pull capable of changing the state of motion of an object; a _____ has magnitude (strength) as well as direction

A change of motion is brought about by (an) _____; the produt of the size of an applied force and the time the force is applied

A measure of inertia, which means a resistance to a change of motion

The product of the mass of an object times its velocity

A unit of force defined as kg times mass per seconds squared; that is a 1 _____ force is needed to accelerate a 1 kg mass 1 mass per second squared

The acceleration of an object is directly proprtional to the net force acting on that object and inversely proportional to the mass of the object

Whenever two objects interact, the force exerted on one object is equal in size and opposite in direction to the force exerted on the other object; forces always occur in matched pairs that are equal and opposite

Describes both the speed and direction of a moving object; a change in ______ is a change in speed, in direction of travel or both

The ability to do work

A MEASUREMENT OF POWER DEFINED AS A POWER RATING OF 550 FT TIMES LB PER SECOND

The metric unit used to measure work and energy; it can also be used to measure heat; equivalent to newton-meter

The energy of motion; can be measured from the work done to put an object in motion, from the mass and velocity of an object while in motion, or from the amount of work the object can do because of its motion

Energy is never created or destroyed; can only be coverted from one form to another

THE FORM OF ENERGY ASSOCIATED WITH MACHINES, OBJECTS IN MOTION, AND OBJECTS HAVING POTENTIAL ENERGY THAT RESULTS FROM GRAVITY

ENERGY DUE TO POSITION; ENERGY ASSOCIATED WITH CHANGES IN POSITION (IE GRAVITATIONAL ________ ENERGY) OR CHANGES IN SHAPE ( IE COMPRESSED OR STRETCHED SPRING)