Name: 
 

12.1 Test



Modified True/False
Indicate whether the statement is true or false.  If false, change the identified word or phrase to make the statement true.
 

 1. 

A number line can be used to compare movement in one dimension(s). _________________________

 

 2. 

When describing the position of an object compared with your position, objects to your left and in front of you are usually described using negative numbers. _________________________

 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 3. 

The location of an object at an instant in time is called its:
a.
angle.
b.
origin.
c.
position.
d.
direction.
 

 4. 

The point from which movement is measured is called the:
a.
position.
b.
dimension.
c.
number line.
d.
origin.
 

 5. 

The two numbers used to locate the position of an object on a flat surface are called:
a.
coordinates.
b.
dimensions.
c.
origins.
d.
planes.
 

 6. 

Fully describing a position in two dimensions requires at least:
a.
one number.
b.
two numbers.
c.
three numbers.
d.
four numbers
 

 7. 

Walking from home, you would know the location of another building if you were told:
a.
the compass direction to the building.
b.
the distance to the building.
c.
the angle AND direction to the building.
d.
the direction AND distance to the building.
 

 8. 

On her skateboard, Paula rolls 16 meters north up a small ramp, stops, and rolls 20 meters south. Compared to her starting point, Paula’s position is:
a.
16 meters north.
b.
4 meters south.
c.
20 meters south.
d.
36 meters south.
 

 9. 

If a cart rolls from a position of -12 meters to a position of -8 meters, the change in its position is:
a.
-4 meters.
b.
+4 meters.
c.
-20 meters.
d.
+20 meters.
 

 10. 

mc010-1-121.jpg

The diagram shows the location of a pine tree on an x-y plane. The position of the pine tree would be described best by coordinates of:
a.
+3,-2
b.
+2,+3
c.
-3,-2
d.
-3,+2
 

 11. 

From the top of a hill, your friend Delano tells you to look northeast at a mountain peak. You should look north of east at an angle of:
a.
45 degrees.
b.
90 degrees.
c.
180 degrees.
d.
270 degrees.
 

 12. 

Jolene walks 6 blocks west, 10 blocks south and 18 blocks north. Compared to her original position, Jolene is located:
a.
10 blocks southwest.
b.
10 blocks northwest.
c.
4 blocks southeast.
d.
4 blocks northeast.
 

 13. 

An airplane hangar, a building used to store and repair planes, is located at the origin of a grid. The coordinates of an airplane approaching the hangar from a distance of 50 kilometers and an angle of 45 degrees north of east would be closest to:
a.
+25 km, +25 km
b.
-25 km, +25 km
c.
+35 km, +35 km
d.
-35 km, -35 km
 

Completion
Complete each statement.
 
 
Select the correct term to complete each sentence. There are extra terms in the list.

peraverageconstant
speedvelocitycoordinates
distancedirectionposition
originnumber linescenter
 

 14. 

The location of an object compared to a reference point is its ____________________.
 

 

 15. 

Two numbers on an x-y plane used to describe the position of an object are called ____________________.
 

 

 16. 

A fixed reference point from which position is determined is a(n) ____________________.
 

 

Short Answer
 

 17. 

What motion is described by each of the coordinates in an x-y plane? In your answer, use the phrases “up and down” and “left and right”.
 

Problem
 

 18. 

The diagram represents the position of a butterfly that has hatched from a cocoon at the origin and flown to position shown on the x-y grid.

Notes: units on the grid are in meters; the positive direction on the x-axis is east; the positive direction on the y-axis is north.

pr018-1-121.jpg

(a)State the coordinates of the butterfly at its current location.
  
(b)On the grid, mark the location of the butterfly and give its coordinates if it flies 14 meters north and 12 meters west.
 



 
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