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35 Cards in this Set

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  • Back

A_____ has both magnitude and direction

vector

A _____ has magnitude and no direction

scaler

______ is the size or amount of something and includes a unit of measurement

magnitude

every vector can be represented as the sum of its _____

components

If a book sits on a table the table exerts an upward _______ on the book

normal force

the sum of two vector is called the ______

resultant

_______ is the relationship between a spring's change in length and the force it exerts

Hooke's Law

A _______ vector shows an object's change in position

displacement

external movement around the axis

revolves

internal movement around the axis

rotates

______ is the measure of how fast an objects rotates or revolves

angular speed

An inward ____ is needed to move an object in a circle

centripetal force

the ________ describes the relationship between mass, distance, and gravitational force

law of universal gravity

an object's ____ is the average position of all the particles that make up its mass.

control mass

A ____ is made up of only one type of molecule

compound

A _____ is a physical combination of different compounds and or elements

mixture

On what scale does water boil at 100degrees and freezes at 0 degrees

celsius scale

the flow of thermal energy is called _____

heat

heat transfer through currents in air or water is called ____

convection

The mass of a body is the only property of that body that determines its _____

inertia

f X t

impulse

if Sam pushes a block one meter with a force of one newton, he has done one _____ of work on the block.

joule

the ratio of the output force to the input force is called ____________.

mechanical advantage

The rate at which an appliance uses energy is indicated as the appliance's _______

power rating

the size of a scalar or vector quantity may be called its _______

magnitude

the vertical and horizontal components of a projectiles motion are _______ of one another

independent

the MEASURE of the average kinetic energy of the atoms in an object is called ________

temperature

the SUM of the average kinetic energy of the atoms in an object is called _______

thermal energy

______ results from splitting or fusing atoms

nuclear energy

When the force due to gravity equals the force due to air resistance, the speed of a falling object is called its ______.

terminal velocity

The ______ states that the total amount of momentum in a closed system cannot change.

law of momentum conservation

the mass of an object multiplied by its velocity equals its _____

momentum

stick together: collision

inelastic collision

bounce off each other : collision

elastic collision

nothing

nothing