physics unit 1

acceleration

the rate at which the velocity changes with respect to a change in time

acceleration due to gravity

g: 32ft/s2 or 9.8 m/s2 on the earth's surface

area

flat surface space

average speed

the total distance traveled divided by the total time

average velocity

the total displacement divided by the total time

component

the vertical and horizontal vectors into which a vector can be separated

density

the quantity mass per unit volume

displacement

a vector quantity describing a distance and direction

distance

the length from one location to another

field

a region in space that yields a value for a measurable quantity at every point

inertia

the apparent resistance of matter to a change in motion

kinematics

a branch of mechanics dealing with the mathematical methods of describing motion

law of inertia

an object in motion stays in motion; an object at rest stays at rest unless an unbalanced force is exerted on it

length

description of how long something is

mass

the quantity of matter that a body possesses as evidenced by its inertia

model

a mental construct that describes a physical phenomenon

motion

a continuous change of position

prefix

an affix occurring at the beginning of a word

resultant

the vector answer to the addition or subtraction of two or more vectors

scalar

a physical quantity expressed as a magnitude and a unit

scientific notation

number expressed as powers of ten

speed

the rate at which distance changes with respect to time; a scalar quantity

time

that which flows onward uniformly

vector

a physical quantity that is expressed as a scalar and a direction

velocity

the rate at which displacement changes with respect to time; a vector quantity

volume

the quantity of space an object occupies

inertia

a synonym for mass

time

that which flows onward uniformly; that which allows you to arrange events in sequence

scalar

a physical quantity expressed as a magnitude and unit

vector

3 mph south

length

description of how long something is

resultant

C in ABC

component

A or B in ABC

motion

a continuous change of position

scientific notation

a number expressed in powers of ten

kinematics

an area of physics dealing with mathematical methods of describing motion

distance

the length from one location to another

resultant

the vector addition of two or more vectors

mass

the property a body possesses as evidenced by its inertia

scalar

a quantity expressed as a magnitude and a unit

vector

displacement is a quantity

density

defined as mass per unit volume

volume

the space an object occupies

inertia

the apparent resistance of matter to a change in motion

area

length times width

time

that which allows us to place events in their order of happening

scalar

the word that best describes 3, 0.5 sec 3m, 5 feet, and 78

speed

the rate at which distance changes with respect to time- scalar quantity

vector

the word that best describes 5mph north, 6ft left, 3 m/sec down, and 6 up

average speed

the total distance by the total time traveled

components

the vertical and horizontal vectors into which a vector can be separated

law of inertia

an object at rest will stay at rest if no external unbalanced forces are exerted on it

velocity

a change in displacement with respect to a change in time

average velocity

the total displacement divided by the total time

displacement

the distance (as the crow flies) and direction

length

the word that describes the fundamental unit of how long something is

law of inertia

an object in motion will stay in motion if there are no external unbalanced forces exerted on it

kinematics

an area of physics dealing with mathematical methods of describing motion

time

that which flows onward uniformly

inertia

a means of measuring mass

vector

that which distinguishes velocity from speed

acceleration due to gravity

what g = 32 ft/sec2 is called

acceleration

the change in velocity divided by the change in time is?

density

the quantity of mass per unit of volume

displacement

distance plus direction describes ?

scalar

wat the magnitude of a vector quantity is called

mass

a property of matter made evident by inertia

field

a portion of space that contains a value for a measurable quantity at every point in space

time

speed = the change in distance over the change in ?

distance

magnitude of displacement

vector

a scalar plus direction

velocity

a change in displacement with repeat to time

model

a description of a phenomenon

acceleration

a change in velocity with respect to time

scalar

time, temperature, distance, speed, and so on

law of inertia

an object in motion will continue in straight line motion if no unbalanced external forces act on it

displacement

distance plus direction

velocity

30 m/sec northwest

average speed

total distance divided by total time

acceleration

what an object going around a curve at a constant speed in undergoing

speed

30 m/sec

scalar

any nondirectional quantity