Properties of Gases and Molecular Motion Quiz

Which state of matter has molecules that vibrate in fixed positions?

• Solid
• Liquid
• Gas
• Plasma

In Brownian motion, particles move in which pattern?

• Curved lines
• Zigzag pattern
• Straight lines
• Circular motion

Who first described Brownian motion in 1827?

• Isaac Newton
• Robert Brown
• Albert Einstein
• Marie Curie

Why are gases easily compressible?

• Dense molecular structure
• Strong molecular bonds
• Large intermolecular spaces
• Low molecular energy

What causes the random movement of particles in Brownian motion?

• Gravity
• Wind
• Constant molecular collisions
• Magnetic fields

In which state do molecules slide past each other with some freedom?

• Solid
• Liquid
• Gas
• Plasma

What characteristic describes gas molecule movement?

• Fixed position
• Slow and predictable
• Random and high-energy
• Tightly packed

Which experiment demonstrates gas diffusion?

• Water boiling
• Ammonia and Hydrogen Chloride experiment
• Ice melting
• Salt dissolving

What enables gases to mix quickly?

• Dense molecular structure
• Large intermolecular spaces
• Strong molecular bonds
• Low molecular energy

In the pollen grain example of Brownian motion, what causes the erratic movement?

• Wind
• Water current
• Bombardment by water molecules
• Magnetic fields