Final answer:
In microgravity, an astronaut's hair will not fall to the floor when cut. The absence of gravity causes the hair to float instead. This is due to the lack of gravitational force pulling objects towards the ground.
Step-by-step explanation:
In the microgravity environment of the space station, an astronaut's hair will not fall to the floor when cut. This is because there is no gravitational force pulling objects towards the ground. Instead, the hair will continue to float around due to the absence of gravity.
The lack of gravity also affects the way fluids behave, such as water droplets or blood. In the absence of gravity, fluids tend to form spherical shapes due to surface tension. This is why you often see astronauts drinking liquids from special containers with straws or using washcloths to clean themselves in space.
Similarly, when an astronaut cuts their hair, the cut hairs will not fall straight down but will float around due to the absence of gravity.
Learn more about Microgravity and its effects on objects in space