What can we find with a distance vs time graph?
speed of an object
What is the velocity of an object that is moving 120 meters in 20 seconds east?
6 m/s east
What are three ways we can tell if something is accelerating?
speeding up slowing down changing direction
What goes on the x axis?
time
What is the average speed of a cow that walks east 60 meters in 90 seconds? (Remember, the units must be m/s or km/hr)
0.7 m/s or 0.66666 (rounded up it is 0.7 m/s)
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
What does a distance vs time graph with a straight (linear) line indicate about a moving object?
It's moving at a constant speed
A porcupine moved toward a pond at a speed of 6 m/s. It took him 9 seconds. What was the distance he traveled?
54 meters
How would you describe negative acceleration? You must use the word "velocity".
decrease in velocity over time
What does a horizontal line in a velocity graph indicate?
The object is at rest (no movement)
What is the speed of an object moving east for 5 seconds at 126.3 m/s?
126.3 m/s
A pink alien moved south in it's spacecraft 5 km at a rate of 20 m/s. How much time did it take him to do this in seconds?
250 s
How would you describe the acceleration of this object? - 14 m/s squared, east
negative acceleration, decrease in 14 m/s every second
What formula would we use if we wanted to find out how an object's velocity changed within a certain period of time?
What is Acceleration
What does a horizontal line on an speed vs time graph indicate?
The object is traveling at a same (constant) velocity