Stupendous Speed
Very Cool Velocity
A+ Acceleration
Analyzing Graphs
100
What is the formula for speed?
Speed = Distance / Time
100
What is the formula for velocity?
100
What is the formula for acceleration?
Acceleration =
Final Velocity - Initial Velocity / change in time
with a direction
100
Describe the motion represented by this graph (include direction).
constant speed forwards
200
How is speed different from velocity?
velocity needs a direction
200
What is the velocity of an object that is moving 6 meters in 2 seconds east?
3 m/s east
200
What are three ways we can tell if something is accelerating?
speeding up
slowing down
changing direction
200
Describe the motion represented by this graph.
Acceleration
300
What is the average speed of a cow that walks east 60 meters in 90 seconds? (Remember units!)
.7 m/s
300
Distance = 20 meters
Time = 4 minutes
Direction = south
What is the velocity of this object?
5 m/s south
300
Final Velocity = 50 m/s south
Initial Velocity = 60 m/s south
Time to change velocity = 5 seconds
What is the acceleration of this object?
-2 m/s squared, south
300
Describe the motion represented by this graph (include direction).
constant velocity backwards
400
A porcupine moved toward a pond at a speed of 5 m/s. It took him 8 seconds. What was the distance he traveled?
40 meters
400
An object travels 25 meters in 2 seconds east. What is it's velocity?
12.5 m/s east (must include direction!)
400
A person on an electric bike accelerates from rest to a speed of 10m/s in 5 seconds. What is the acceleration?
2m/s2
400
Describe the motion represented by this graph (be specific).
accelerating (speeding up)
500
What is the speed of an object moving east for 6 seconds at 105.3 m/s?
105.3 m/s
500
What does a negative velocity mean?
The object is moving backwards
500
What does a horizontal line on a velocity vs time graph indicate?
The object is traveling at a same (constant) velocity
500
Describe the motion represented by this graph.
Constant velocity
600
What does a distance vs time graph with a straight (linear) line indicate about a moving object?
It's moving at a constant speed
600
What does a horizontal line on a position vs time graph indicate?
The object is at rest (no movement)
600
How would you describe negative acceleration?
decrease in velocity over time or slowing down
600
Which line represents the greatest velocity?
A