Motion
Distance
Displacement
Total length covered
Going straight=least distance
Scalar Quantity
Distance between the final and initial position.
Distance > Displacement
Never negative
Can cover length with 0 displacement
Photo courtesy of Wikibooks
Scalar
Measured in Meters
1000m=1km
Does not specify direction
Anything that doesn't specify direction
Distance with direction
Direction is specified
Becomes vector quantity
Distance is scalar
Will be same length as distance with direction included
Vector
Displacement is vector
Specify's direction
Used on a map with a grid to show distance traveled
Photo Courtesy of Google Developers
If you were an independent taxi driver and you wanted to maximize charges to raise money for your child, would you charge based on distance or displacement? Explain.
Vahan: If I were a taxi driver I would want to charge by distance because the customer could avoid paying if I did a round trip because there would be zero to no displacement.
Mann: If I were an independent taxi driver, I would base my charge on distance, because the passenger would pay me less if I had to take a detour because of a road work or anything else. Also I am also wasting my gas and going the long way.
Speed
Velocity
It is how fast something travels regard less of direction.
Average Speed
Is the ratio between total distance divided by total time.
Usually measured in units per hour
Is used if someone go-s at different speeds at different times.
Instantaneous speed
Is to tell the speed for the particular moment
Is the ratio between distance covered and time.
Has both direction and magnitude