Definitions
Question recap
Units
Short answer
Class Review
100
a scalar that refers to how fast an object is moving
What is speed?
100
While on vacation, Lisa Carr traveled a total distance of 440 miles. Her trip took 8 hours. What was her average speed?
440miles/8hours=55mph
100
The units of velocity and speed (SI units)
Meters/second (m/s)
100
If velocity changes but speed stays the same, what changed?
What is the direction?
100
Displacement due to gravity
What is 9.8m/s
200
a vector that refers to how "the rate at which an object changes it's position
What is velocity
200
It took Tommy 35 min to get to school, he lives 10 miles away from the school. What was his average speed?
.2857mi/min
200
Units of mass
Kilograms (kg)
200
a car in the indy 500 has a displacement of "blank" by the end of the race
What is 0meters
200
Something that distrubtes the weight of an object, often used to build bridges
What is a truss
300
a scalar that refers to "how much ground an object has covered" during it's motion
What is distance
300
An airplane flies 121 miles in 228 minutes. What is its average speed in miles per hour?
121miles/(228min/60sec)=31.8min
300
units of acceleration
meters per second squared m/s^2
300
Distance divided by time traveledd
average speed
300
Rate of change of velocity
acceleration
400
Quantities that are fully described by magnitude
What are scalars?
400
Mike rides his motorcycle 28 miles in 30 minutes. What is his average speed in miles per hour?
28miles (60/30)= 56miles/hour
400
Mass*acceleration
What is force?
400
When a football reaches it's max height, it's vertical velocity is
zero
400
Force/area
What is stress?
500
Quantites that are fully described by both magnitude and a direction
What are Vectors?
500
An airplane flies 324 miles in 408 minutes. What is its average speed in miles per hour?
324/(408minutes/60)=47.5mph
500
Mass times velocity
Momentum
500
acceleration and velocity are both examples of
What is a vector?
500
Change of length divided by it's original length
What is Strain?
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