Ch 1 L1 Science

Front 1

a ? is a starting point you choose to describe the location,or position,of an object.

Back 1

reference point

Front 2

a ? is an objects distance and direction from a reference point

Back 2

position

Front 3

a complete description of a position includes a distance , a ? ,and a reference point

Back 3

direction

Front 4

a good choice for a ? is something that is easy to find

Back 4

reference point

Front 5

if a reference point does not change the actual ? of an object

Back 5

position

Front 6

when you describe an objects position, you compare its location to a reference ?

Back 6

direction

Front 7

a reference direction can be described as a ________ direction

Back 7

positive

Front 8

The opposite direction is the ________ direction

Back 8

negative

Front 9

when you describe position using two directions, you are using two ___________

Back 9

dimensions

Front 10

examples of _____________ directions in two dimensions included "north" and "east" and "right and forward"

Back 10

reference

Front 11

to find a position in two dimensions, first choose a reference ________. Next specify _________. Then determine ________.

Back 11

point. directions. distance

Front 12

__________ is the process of changing position. Its is always described relative to a ____________

Back 12

motion. reference point

Front 13

it is possible to move with regard to one __________ and stay motionless with regard to another _________

Back 13

reference point. reference point

Front 14

_________ is the length of the path an object moves along

Back 14

distance

Front 15

___________ is the difference between the initial position and the final position of an object

Back 15

displacement

Front 16

distance and displacement are equal only if the motion is in one _________

Back 16

direction