Focus On Physical Science: California Grade 8

Chapter 6: States of Matter

Standards Review

1.
What happens when evaporation occurs? 3.d
A)gas changes to a solid
B)gas changes to a liquid
C)solid changes to a gas
D)liquid changes to a gas
2.
What always happens when a substance is heated? 3.d
A)The thermal energy of the substance doesn't change.
B)The temperature of the substance increases.
C)The thermal energy of the substance increases.
D)The potential energy of the particles in the substance decreases.
3.
Which describes how atoms and molecules are moving in an object? 3.d
A)They can move in all directions but have the same speed.
B)They can move in all directions and have different speeds.
C)They move in the direction of the gravitational force and have different speeds.
D)They move only if the object is moving.
4.
The forces between particles in matter _______. 3.e
A)Become stronger as the particles get closer together.
B)Become weaker as the particles get closer together.
C)Become repulsive as particles get farther apart.
D)Usually push particles away from each other.
5.
The process of vaporization includes _______. 3.d
A)evaporation and sublimation
B)evaporation and boiling
C)boiling and melting
D)sublimation and boiling
6.
Which is always true when a material is changing from one state of matter to another? 3.e
A)The thermal energy of the material doesn't change.
B)The temperature of the material can increase or decrease.
C)The temperature of the material doesn't change.
D)The forces between the particles in the material increase.
7.
Which best describes a liquid? 3.e
A)The shape and the volume can change.
B)The shape and the volume don't change.
C)The shape doesn't change, but the volume can change.
D)The volume is constant, but the shape can change.
8.
Which best describes the motion of particles in a solid? 3.e
A)Particles are far apart and move independently.
B)Particles vibrate back and forth but can move from one place to another.
C)Particles vibrate back and forth without moving from place to place.
D)Particles are far apart, but are held in place by strong forces.
9.
__________ is the measure of the average kinetic energy of the particles in a material. 3.d
A)Thermal energy
B)Temperature
C)Sublimation
D)Heat
10.
When a solid melts, how does the spacing of particles in the solid compare to the spacing of particles in the liquid? 3.e
A)The spacing between particles changes by only a small amount.
B)Particles in the liquid are much farther apart.
C)Particles in the solid are much farther apart.
D)The spacing between particles doesn't change.
11.
Boiling occurs when ________. 3.d
A)Vaporization occurs at the surface of the liquid.
B)Vaporization occurs within the liquid.
C)Evaporation occurs within the liquid
D)Sublimation occurs at the surface of the liquid.
12.
Which is true for solids and liquids? 3.e
A)Particles vibrate back and forth ,but don't move from place to place.
B)Attractive forces between particles are strong enough to keep particles close together.
C)Particles can slide past each other and move from one place to another.
D)Attractive forces are so weak that particles move independently.
13.
What causes water droplets to form on the outside of a glass full of ice-cold water? 3.d
A)vaporization
B)evaporation
C)sublimation
D)condensation
14.
If thermal energy is being removed from a material, which change in the state of matter of the material could occur? 3.d
A)vaporization
B)melting
C)deposition
D)sublimation
15.
The temperature of a liquid cools when _______ occurs. 3.e
A)evaporation
B)sublimation
C)an increase in pressure
D)condensation
Grade 8
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