CFI Physics Quiz 1

change of the position. The final position minus the initial position

The average distance over an average time

Rate of change of the velocity

No forces act on an object other than the gravitational force that makes the object fall

Have both magnitude and direction.

A push or pull that one object exerts on another

Magnitude of the gravitational force that a planet or moon exterts on a nearby object

Resistance to changes in velocity

When the two objects are slipping or sliding across one another, as when a loose shingl slides down a roof.

No slipping or sliding occurs, as between the tires of a car parked on a hill and the road surface

Physical law that identifies a quantity that does not change wth time

Energy due to motion

Stored energy due to interaction

Motion of an object in which any point of the object moves with the same velocity as any other point. (object does not rotate or change shape)

Energy transfer that occurs when a force acts on an object that moves

the sum of the kinetic and potential energies

Rate a which work is performed or evergy is converted

Product of mass and velocity

Product of a vector and a positive scalar

An average location of the system (a point)

Role in otation that force itself plays in translation. A measure of how effective a given force is at twisting or turning something

Total force of gravity can be considered to act at a single point

materials that flow and include both liquids and gases. Nearly incompressible

Force per unti area is the same for any orientation of the surface

mass per unit volume

total force on an object due to fluid

The buoyant force on an object is equal to the weight of an equal volume of fluid

Fluid flows faster where the pressure is lower

the force per unit lenght with which the surface pulls in its edge