Stupendous Speed
What is the formula for speed?
Speed = Distance / Time
What is the formula for velocity?
Velocity = Distance / Time with a direction
What is the formula for acceleration?
Acceleration = Final Velocity - Initial Velocity / change in time with a direction
What term is m/s an example unit?
speed or average speed
What can we find with a distance vs time graph?
speed of an object
How is speed different from velocity?
velocity needs a direction
What is the velocity of an object that is moving 6 meters in 2 seconds east?
3 m/s east
What are three ways we can tell if something is accelerating?
speeding up slowing down changing direction
What is km/hr squared, south.. a possible unit for?
Acceleration
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)
.7 m/s
Distance = 20 meters Time = 4 minutes Direction = south What is the velocity of this object (m/s)?
.08 m/s south
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
Which of our formulas must have a direction in order to be complete?
velocity
What does a position vs time graph with a straight (linear) line with a non-zero slope indicate about a moving object?
It's moving at a constant speed
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
An object travels 25 meters in 2 seconds east. What is it's velocity?
12.5 m/s east (must include direction!)
How would you describe negative acceleration? You must use the word "velocity".
decrease in velocity over time
For what formula would decimeters/hour east be a possible unit?
velocity
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 6 seconds at 105.3 m/s?
105.3 m/s
A pink alien moved south in it's spacecraft 2 km at a rate of 20 m/s. How much time did it take him to do this in seconds?
100s
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