Position and Motion
A ________________ is the starting point you choose to describe the location, or position, of the object.
reference point
__________ is the measure of the distance of an object travels per unit of time.
speed
A measure of the change in velocity during a period of time is called ______________.
acceleration
3.Something is in motion if it __________.
a. changes position
b. changes state
c. changes properties
d. changes distance
a. changes position
A ___________ is an object's distance and direction from a reference point.
position
What is constant speed?
the rate of change of position is which the same distance is traveled per second
The equation for acceleration is final speed-initial speed DIVIDED BY _________________.
total time
When something slows, its acceleration is __________.
a. positive
b. negative
c. instantaneous
d. constant
This is the process of changing position.
motion
The speed at a specific instant in time is called ________________.
A speed-time graph shows an object's __________.
speed
5.Which is distance divided by time?
a. speed
b. displacement
c. velocity
d. acceleration
a. speed
The difference between the initial (first) position and the final position of an object is called __________.
displacement
average speed (average velocity)
The axis the goes side to side is called the _________________.
horizontal axis
Which measures the speed during an entire trip?
a. instantaneous speed
b. acceleration
c. average speed
d. overall speed
c. average speed
A complete description of your position includes these 3 things.
a distance, a direction, and a reference point
The speed and direction of a moving object is called ________________.
velocity
vertical axis
What are the SI units for acceleration?
a. m/s2
b. m2/s
c. s/m2
d. s2/m
a. m/s2