Which list shows the phases of matter in order from the greatest average kinetic energy to the least average kinetic energy per particle?(1 point)
Responses
gas, liquid, solid
gas, liquid, solid
solid, gas, liquid
solid, gas, liquid
solid, liquid, gas
solid, liquid, gas
liquid, gas, solid
The correct answer is:
gas, liquid, solid
Cynthia sees that most of the ice in her iced tea has melted. Assuming the water and the ice are at the same temperature, what happened to the particles in her ice?(1 point)
Responses
The particles have a much greater amount of kinetic energy than before.
The particles have a much greater amount of kinetic energy than before.
The particles have had their kinetic energy converted into thermal energy.
The particles have had their kinetic energy converted into thermal energy.
The particles have the same amount of kinetic energy but no longer vibrate in place.
The particles have the same amount of kinetic energy but no longer vibrate in place.
The particles have a higher temperature than before and are moving more freely.
The particles have a higher temperature than before and are moving more freely.
The correct answer is:
The particles have had their kinetic energy converted into thermal energy.
Litmus paper is used to detect the presence of an acid or a base. Red litmus paper turns blue when a base is detected, and blue litmus paper turns red when an acid is detected. In this example, litmus paper is acting as a(n)(1 point)
Responses
chemical reaction.
chemical reaction.
characteristic property.
characteristic property.
indicator.
indicator.
Benedict’s test.
Benedict’s test.
The correct answer is:
indicator.
Which measurement would change if you traveled from Earth to the moon?(1 point)
Responses
your weight
your weight
your mass
your mass
your density
your density
your heigh
The correct answer is:
your weight
Which single characteristic must be known about an object to determine if it will sink or float in water?(1 point)
Responses
the mass
the mass
the volume
the volume
the density
the density
the weight
The correct answer is:
the density
Salt and water can be mixed until the particles of salt have become very small and are no longer visible. Which property is being demonstrated by this observation?(1 point)
Responses
filtration
filtration
solubility
solubility
magnetization
magnetization
flammability