Acceleration =
Final Velocity - Initial Velocity / change in time
100
What formula is m/s an example unit?
speed or average speed
100
What can we find with a distance vs time graph?
speed of an object
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 the three ways an object can accelerate?
speeding up
slowing down
changing direction
200
What is km/hr squared a possible unit for?
Acceleration
200
What can we find with a speed vs. time graph?
acceleration
300
What is the average speed of a cow that walks east 60 meters in 90 seconds?
(Remember, you must include 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
Initial Velocity = 60 m/s
Time to change velocity = 5 seconds
What is the acceleration of this object?
-2 m/s squared
300
Which of our formulas must have a direction in order to be complete?
velocity
300
What does a distance vs time graph with a straight (linear) line indicate about a moving object?
It's moving at a constant speed
400
DAILY DOUBLE!!!
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
400
A car traveling 40 m/s encounters a dog in the road and comes to a complete stop. How much time would it take for the car to stop if it decelerates at -5 m/s2?
8 seconds
400
For what formula would meters be a possible unit?
D= T x V
400
What does a horizontal line on a distance vs. time graph indicate?
The object is at rest (no movement)
500
DAILY DOUBLE!!
What is the average speed of a dog who walks 3m east in 4s, 10m north in 15s, and 8m south in 10s?
(Round to the 100th place)
0.72 m/s
500
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
500
A car can go from 10 m/s to 70 m/s in 10 seconds, what would be its final speed after 5.0 seconds if its starting speed were 55 m/s
85 m/s
500
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
500
What does a horizontal line on an speed vs time graph indicate?
The object is traveling at a same (constant) velocity