Have an account?
Skip to Content
Build your own quiz
Suggestions for you
10 questions
Show Answers
See Preview
- 1. Multiple Choice
What is Brownian motion?
The movement of water molecules in a beaker
The movement of air molecules
The movement of solid molecules
The movement of smoke particles in air
- 2. Multiple Choice
Pollen grains suspended in water exhibit Brownian motion. How does a particle undergoing Brownian motion move?
In smooth curves
Randomly
Orderly with a pattern
In straight lines with no change of direction
- 3. Multiple Choice
A student makes an observation using a microscope. He observed some particles which were moving in a zig-zag way. What particles could these NOT be?
Smoke particles in air
Dust particles in a room
Pollen grains in water
Molecules in a solid bar of steel
- 4. Multiple Choice
Light and fast moving particles can move heavier particles. Which one is a correct example of the light and the heavy particle?
Light : air molecule, Heavy : water molecule
Light : air molecule, Heavy : smoke particle
Light : smoke particle, Heavy : air molecule
Light : pollen grain , heavy : water molecule
- 5. Multiple Choice
What evidence does Brownian motion provide about molecules of a gas or liquid?
Molecules are close together
Molecules are far apart
Molecules move continously but randomly
Molecules move continously and randomly
- 6. Multiple Choice
Diffusion occurs only in solids
True
False
- 7. Multiple Choice
What is a solute?
A substance dissolved in another substance
the substance doing the dissolving
- 8. Multiple Choice
What is a solvent
The one doing the dissolving
The substance dissoved in another substance
- 9. Multiple Choice
How do the particles move in diffusion?
From a region of low concentration to a region of high concentration
From a region of high concentration to a region of low concentration
From a region of low concentration to a region of low concentration
From a region of high concentration to a region of high concentration
- 10. Multiple Choice
How long does diffusion last?
Until the concentration of particles in the system is equal
(Select this answer and I swear i'll make it harder for you in the assessment task)
Until a region in the system has a greater concentration of particles than the other
Until the particles disappear from the system
- Answer choicesTagsAnswer choicesTags