Describing position
What is motion?
How to measure motion
Speed and direction
100

The location of an object.

position

100

What do you call the process of changing position?

motion

100

Is a measure of the distance an object travels in a give amount of time.

speed

100

It is the speed and direction of a moving object.

velocity

200
The starting point you chose to describe the location, or position of an object.

reference point

200

True or false.  An object is not in motion relative to a reference point that moves in the same direction at the same rate as the object.

True

200

What is the average speed equation?

v = d/t

200

It is a quantity that has only magnitude.

Scalar

300

An object's ______________ is constantly changing if it is in motion.

position

300

It is the difference between the initial position and the final position measured in a straight line.

displacement

300

It is equal to the total distance traveled divided by the total time.

average speed

300

It is a quantity that has both magnitude and direction.

vector

400
When you describe an object's position, you compare its location to a 

reference position

400

You run 100m to the west.  You turn around and run 100m to the east.  What is your displacement?

0m

400

What is the average speed of a soccer ball that travels 34 m in 2 s?

17 m/s (34/2)

400

Morgan rode her bicycle from her house to the mailbox.  The mailbox is 3 miles east of her house.  It took her 15 minutes to get to the mailbox.  What was her velocity?

5 mi/min east

500

If an object is traveling in the opposite direction of another object, is its direction positive (+) or negative(-)?

negative

500

You leave you house and walk 200 m west to the grocery store.  From there, you walk 100 m east to the park, and another 600 m to the south to the doughnut shop.  How far did you walk?

900m

500

Buddy runs 400 m in 56 s.  What is his average speed?  Round to the nearest 100th.

7.14 m/s

500

This type of graph shows an object's change in position during specific time intervals. 

distance-time graph