Velocity
What is velocity?
The speed and direction of an object
What is distance?
The change of position of an obejct compared to a reference point.
What is speed?
The amount of distance and the time took for an object to travel
What is acceleration?
A change in velocity
What is a motion map?
How is velocity different than speed?
Velocity requires the direction in addition to distance and time
What is displacement?
The final position minus the initial position
The +/- signs on a diagram are used to distinguish?
direction of motion
What are the units for acceleration?
m/s2
In a motion map, a dot (with and without an arrow) represents what?
What is the unit(s) for velocity?
meter per second (m/s)
A car starts at 2m, moves forward to 7m, and goes back to 1m. What is the total distance traveled?
11 meters
A car travels from 6 meters to 19 meters in 5 seconds. What is the average speed of the car?
2.6 m/s
What is the difference between constant velocity and acceleration on a graph?
Constant velocity is a straight line with the same slope, while acceleration has an increasing slope, causing the line to curve
How do you represent a negative veolicty on a motion map?
The arrows point to the negative side (left)
What does a positive velocity represent?
Forward motion
What type of graph represents the speed of an object?
Position v Time Graph
True or False: Speed and velocity are the same, as they both measure the distance and time an object travels.
False
A train slows down from 30 m/s to 0 m/s in 6 seconds. What is the average acceleration?
5 m/s2
How do you represent acceleration on a motion map?
An increase in arrow length and space between the end of an arrow and a dot
A train heads from California to Arizona, traveling 320 miles in 4 hours, what is the trains velocity?
80 mi/hr east
A ball starts at -5 meters, rolls forward to 15 meters, then is kicked to 2 meters. What is the object's displacement?
7 meters
A runner starts at rest and runs for 8046 meters (About 5 miles) for 60 minutes. What was their average speed?
134.1 meters/minute
A skier starts at 5 m/s and accelerates at 4 m/s2 for 10 seconds, what is the final velocity?
45 m/s
Create a motion map that represents the following:
A car accelerates at 1 m/s2 down the road for 5 seconds, stops for 2 seconds, then backs up into a parking spot for 2 seconds.
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