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phys Chap4 TKA

vocab for chapter 4 BJU physical science

study of motion mechanics
description of what causes movement dynamics
description of how stationary things react to pushes and pulls statics
what is being studied that is inside a boundary system
everything outside the boundary of a system surroundings
How we describe motion depends on this. frame of reference
an imaginary line marked off in a distance coordinate axis
a non physical continuum that orders the sequence of events time
Must always be positive if any has elapsed time
a positive quantity magnitude
includes magnitude and direction vectors
does not include direction scalar
A scalar quantity that measures the route you take. distance
A vector quantity that compares the ending position to the beginning position. displacement
occurs when a system changes position motion
Velocity is a vector quanity
Acceleration can be ____ if you are slowing down. negative
s = d/t is used to calculate average speed
Acceleration is a ___ ____ if the formula includes velocity. vector quantity
When you are speeding up you are accelerating positively
When you are slowing down you are accelerating negatively
description of how things move kinematics
There is more than one possible ______ __ _____. Frame of reference
Created by: kdcribb