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 increasing line indicate about a moving object?
It's moving at a constant speed
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
DAILY DOUBLE!!
A boy walks 85 meters in 30 seconds south. What is it's velocity?
2.83 m/s south
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 car that moves 30km in 35s, 10km in 8s, and 15 km in 12s?
(Round to the 100th place)
1 km/h
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
DAILY DOUBLE!!
What does a horizontal line on an speed vs time graph indicate?
The object is traveling at a same (constant) velocity