Sig. Figs & Sci Notation
Very Cool Velocity
A+ Acceleration
What formula would this go to?
Questions about Graphs
100

How many significant figures?

172

What is 3?

100
What is the formula for velocity?
Velocity = Distance / Time with a direction
100
What is the formula for acceleration?
Acceleration = Final Velocity - Initial Velocity / change in time with a direction
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

1.56 x 10^4

What is 15600?

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
What is km/hr squared, south.. a possible unit for?
Acceleration
200
What goes on the x axis?
time
300

Convert to the Scientific Notation

0.502

What is 5.02 x 10^-1?

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
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

How many significant figures?

0.982 x 10^-3

What is 3?

400
An object travels 25 meters in 2 seconds east. What is it's velocity?
12.5 m/s east (must include direction!)
400
How would you describe negative acceleration? You must use the word "velocity".
decrease in velocity over time
400
For what formula would decimeters/hour east be a possible unit?
velocity
400
What does a horizontal line in a velocity graph indicate?
The object is at rest (no movement)
500

Round 0.00023350 to 3 significant figures.

What is 0.000234?

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
How would you describe the acceleration of this object? - 14 m/s squared, east
negative acceleration, decrease in 14 m/s every second
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
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