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
The correct answer is:
solubility
Which option is a synthetic material?(1 point)
Responses
marble
marble
plastic
plastic
water
water
balsa wood
balsa wood
The correct answer is:
plastic
Risha buys a graphic t-shirt with a local band's logo on the front. She notices that the label states it is made from 50% cotton, 35% polyester, and 15% rayon. Which statement accurately describes the shirt that Risa bought?(1 point)
Responses
The t-shirt is made completely of natural materials.
The t-shirt is made completely of natural materials.
The t-shirt is made of synthetic materials and some natural materials made from synthetic materials.
The t-shirt is made of synthetic materials and some natural materials made from synthetic materials.
The t-shirt is made of natural materials and some synthetic materials made from natural materials.
The t-shirt is made of natural materials and some synthetic materials made from natural materials.
The t-shirt is made completely of synthetic materials.
The t-shirt is made completely of synthetic materials.
The correct answer is:
The t-shirt is made of natural materials and some synthetic materials made from natural materials.
Which statement provides an accurate description of plastic?(1 point)
Responses
Plastic is a synthetic material made from mostly nonrenewable natural resources.
Plastic is a synthetic material made from mostly nonrenewable natural resources.
Plastic is a synthetic material made from only renewable resources.
Plastic is a synthetic material made from only renewable resources.
Plastic is a natural resource that is made from renewable and nonrenewable resources.
Plastic is a natural resource that is made from renewable and nonrenewable resources.
Plastic is a natural resource that is made from synthetic materials.
The correct answer is:
Plastic is a synthetic material made from mostly nonrenewable natural resources.
The production of plastic has many negative consequences. Which option lists a reason why people still use it?(1 point)
Responses
Plastic has negative consequences but fewer than most natural resources.
Plastic has negative consequences but fewer than most natural resources.
Plastic has helpful properties that cannot easily be found in natural materials.
Plastic has helpful properties that cannot easily be found in natural materials.
Plastic can be made from substances that are available in limitless quantities.
Plastic can be made from substances that are available in limitless quantities.
Plastic that we use today has mostly been recycled many times.
The correct answer is:
Plastic has helpful properties that cannot easily be found in natural materials.
Which option describes a disadvantage of plastic?(1 point)
Responses
It is expensive to transport.
It is expensive to transport.
It is not reusable.
It is not reusable.
It breaks down easily.
It breaks down easily.
It does not biodegrade.
The correct answer is:
It does not biodegrade.