WorksheetsParticulate Nature of Matter (Part 2)
Total questions: 10
Worksheet time: 10mins
Why does the mass of matter not change during expansion or contraction?
The number of particles remains the same
The number of particles change
Select the statements that applied during contraction.
Heat is lost
particles lose heat energy
particles move slower
particle move closer together and volume decreases
What is contraction?
An object increases in volume without a change in mass
An object decreases in volume without a change in mass
What is expansion?
An object increases in volume without a change in mass
An object decreases in volume without a change in mass
Why does solid has a fixed shape?
The particles are held by very strong forces of attraction. They can only vibrate about their fixed position. Hence, they have an orderly arrangement.
The particles are held by weak forces of attraction. They can move rapidly in all directions. Hence, they have an disorderly arrangement.
The particles are held by strong forces of attraction. They can slide over one another. Hence, they have an disorderly arrangement.
The diagram represent the arrangement of particles in ____________.
gas
liquid
solid
What happens to particles of liquid when they are heated?
They slide over one another faster and move further apart
They slow down and compress
They stop moving
They slide over one another slower and move closer together
The particles of liquids ________________
vibrate about their fixed postions
are able to slide over each other
move about freely at high speeds and in random direction
do not move
The particles of solids ________________
vibrate about their fixed postions
are able to slide over each other
move about freely at high speeds and in random direction
do not move
