Speed (D/T) is rate of change. It is the time it takes to cover a distance. Visualizing the equation for speed, S=D/T, makes the concept much easier to understand. Velocity is related to speed. It is the rate of chang of displacement (movement). An object must have a specified direction to have a velocity rather than just speed.
An example of speed in relation to photography would be the shutter speed. A basic lens is 35mm, the shutter speed regualtes the legnth of time it takes to cover that distance. If the time goes up, the speed goes down and vise versa.
EXAMPLE QUESTIONS
Q. Find the speed in miles per hour. A car has to travel 60 miles in 2 hours. At what speed does the car have to travel to make it to to its destination?
A. 30 miles per hour.
Q. What is the difference between speed and velocity?
a. they are spelled differently.
b. they mean the same thing, stupid.
c. velocity requires a direction, speed does not.
d. all of the above
e. none of the above
A. The answer is choice c.
An example of speed in relation to photography would be the shutter speed. A basic lens is 35mm, the shutter speed regualtes the legnth of time it takes to cover that distance. If the time goes up, the speed goes down and vise versa.
EXAMPLE QUESTIONS
Q. Find the speed in miles per hour. A car has to travel 60 miles in 2 hours. At what speed does the car have to travel to make it to to its destination?
A. 30 miles per hour.
Q. What is the difference between speed and velocity?
a. they are spelled differently.
b. they mean the same thing, stupid.
c. velocity requires a direction, speed does not.
d. all of the above
e. none of the above
A. The answer is choice c.