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Science Chapter 8 section 1.2

Terms in this set (26)

The _________ of particles in a liquid causes the particles to move slightly farther apart.
motion
Describe the particles in a liquid
no definite shape, has definite volume

particles free to move past other particles

attractive forces weaker than those in solids
What is matter with a definite volume but no definite shape?
liquid
liquids flow and take the shape of their
container
The particle motion in the liquid state of a material is _______ than the particle motion in the solid state.
faster
What other forces also enable liquids to flow and take the shape of their containers?
weather forces
What is the measurement of a liquid's resistance to flow?
viscosity
What is an example of a liquid with viscosity?
honey
Viscosity is due to particle ________, particle ________, and the strength of the attraction between the particles of a liquid.
mass, shape
identify three factors that affect viscosity.
particles interactions

particle mass

particle shape
What do molecules at the surface of a liquid have?
surface tension
What is the uneven forces acting on the surface of a liquid called?
surface tension
What allows a spider to walk on water?
surface tension
What is the attraction of molecules to like molecules called?
cohesion
The particles in a gas are far apart, and there is little or no __________ forces between the particles.
attractive
What is a matter that has no definite volume and no definite shape called?
gas
What is a gas state of a substance that is normally a solid or a liquid at room temperature called?
vapor
Water is normally a liquid at room temperature. When it is a gas state, such as air, what is it called?
water vapor
How do particles move and interact in a gas?
gas particles more freely, spread out, and they and have little attraction for other gas particles
Increased motion in the particles in a liquid allows the particles to
A: stop their flow
B: hold their shape
C: slip past one another
C: slip past one another
Particles in a solid are

A: far apart
B: not moving
C: close together
close together
Particles in liquid and gases:

A: move faster than in a solid
B: are closer together than in a solid
C: flow and take the shape of their container
A: move faster than in a solid
What would happen if you tried to squeeze a gas into a smaller container?

A: the attractive forces between the particles would increase
B: the force of the particles would prevent you from doing it
C: the particles would have fewer collisions with the container
A: the attractive forces between the particles would increase
When a needle is placed on the surface of water, it floats. Which idea best explains why this happens?
surface tension
In Which material would the particles be most closely spaced?

A: air
B: brick
C: syrup
D: water
B brick
Which property applies to matter that consists of particles vibrating in place

A: has a definite shape
B: takes the shape of the container
c: flows easily at room temperature
D: particles are far apart
A: has a definite shape
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