Fluid

The video tutorial explains that both liquids and gases are types of fluids. It introduces ferro fluids, which are liquids containing tiny magnetic particles. When exposed to a magnetic field, these particles become magnetized, causing the ferro fluid to behave like a solid. However, upon touching, it is evident that they remain fluid.

What are the two types of fluids mentioned?

• Solids and gases

• Liquids and gases

• Liquids and solids

• Gases and plasmas

What unique component do ferro fluids contain?

• Tiny magnetic particles

• Large metal chunks

• Small plastic beads

• Invisible gas molecules

How do the particles in ferro fluids behave when exposed to a magnetic field?

• They dissolve

• They behave like a solid

• They become gaseous

• They evaporate

What happens when you touch the spikes of a ferro fluid with a splint?

• They melt

• They remain solid

• They shatter

• They are still fluid

Which of the following is NOT a characteristic of ferro fluids?

• Turn into gas when heated

• Contain magnetic particles

• Behave like a solid in a magnetic field

• Remain fluid when touched