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WorksheetsGrade 8 Chapter 8
Total questions: 10
Worksheet time: 30mins
What would happen if you tried to squeeze a gas into a smaller container?
attractive forces between particles increase
particles stay the same distance apart
particles have fewer collisions with the container
particles push each other apart
when a needle is placed on the surface of water, it floats. This is because of
viscosity
Boyle's law
surface tension
Charles' law
Sarah is doing an experiment with a chemical that is a solid that turns immediately into a gas. what is this change called?
evaporation
deposition
sublimation
boiling
which property applies to matter that consists of particles vibrating in place?
has a definite shape
takes the shape of the container
no fixed volume or shape
particles far apart
What happens to matter as its temperature increases?
average kinetic energy of its particles decreases
average thermal energy of its particles decreases
particles gain kinetic energy
particles lose potential energy
which is held constant when a gas obeys Boyle's law?
motion
pressure
temperature
volume
Charle's law relates
volume and temperature of a gas
temperature and pressure of a gas
time and temperature of a gas
time over which the pressure changes
During the boiling stage of a liquid, what is true?
temperature is constant, potential energy of particles increases
temperature is constant, kinetic energy of particles increases
temperature increases, kinetic energy stays the same
both kinetic and potential energies increase
which state of matter is rarely found on earth?
gas
liquid
plasma
solid
Thermal energy is
the average motion of the particles
the total potential and kinetic energies of an object
the amount of potential energy of the particles
when heat moves
