what is shutter speed?

the speed at which the shutter of the camera closes. A fast shutter speed creates a shorter exposure, the amount of light the camera takes in, while a slow shutter speed gives the photographer a longer exposure. The length of time the shutter remains open is determined by its speed. The shutter is a curtain in front of the camera sensor that remains closed until you start shooting. Once you click the button to take a photo, the shutter opens and lets in light that passes through the lens, exposing the sensor to it. 

adjusting the shutter speed, on a camere it can be found:

Shutter speed is measured in fractions of a second, on most cameras it appears as a whole number. Easy way to remember=

1” = shutter speed of 1 second.

10” = shutter speed of 10 seconds.

10 = shutter speed of 1/10th of a second.

500 = shutter speed of 1/500th of a second

Slow shutter speeds often refers to a larger fraction of a second, such as ½ or ¼. Slow shutter speeds can capture movement and introduce blur, usually for slower moving subjects.

Long shutter speeds are typically around one second or longer. Like slow shutter speeds, they can be used for adding blurring effects to images.

John Baldessari

Jhon is a photographer which has expressed that his interest in language comes from its similarities in structure to games, as both operate by an arbitrary and mandatory system of rules. In this spirit, many of his works are sequences showing attempts at accomplishing an arbitrary goal, such as Throwing Three Balls in the Air to Get a Straight Line (1973), in which the artist attempted to do just that, photographing the results, and eventually selecting the “best out of 36 tries”.

This links back to shutter speed as in order to have a clear image of balls that are constantly moving, the camera needs to have an appropriate shutter speed.if the shutter speed is too slow the quality of the balls being photographed would be lower then if the shutter speed is higher.