Checkpoint: States of Matter

Last updated 20 days ago

10 questions

1

Which of the following changes made to a sample of liquid would result in an increase in the distance between the individual molecules of the substance?

Transferring the substance to a smaller container

 Adding heat to the substance

 Changing the phase of matter from liquid to solid

 Decreasing the overall kinetic energy of the liquid

A student drew a representation of the atoms of a solid. The illustration shows closely packed atoms vibrating, but remaining in the same relative positions. Which of the following changes must the student make to the illustration to accurately represent the same substance in the liquid phase?

 The illustration should show increased movement of the atoms

 Each individual atom should be larger

 There should be VERY WIDE spaces between the atoms

 The shape of each atom must reflect the shape of the container

Which of the following statements best describes the relationship between temperature and kinetic energy of particles in a substance?

 As kinetic energy decreases, temperature is not affected

 As kinetic energy increases, temperature decreases

 As kinetic energy decreases, temperature increases

As kinetic energy increases, temperature increases

Students were asked to draw a concept map of changes in matter at the molecular level. An incomplete sample is provided here. Which of the following labels would be most appropriate for completing the diagram?

A=particles become more tightly packed

 B=the pressure of the substance decreases

 C= kinetic energy of particles increases

 D= particles become more widely spaced

Say you were to draw a the molecules for what's happening at label "B" - What would the molecules be doing?

Spreading Out, Slowing Down

Moving closer, Slowing Down

Moving Closer, Speeding Up

 Spreading out, Speeding Up

Molecules of a solid are...

Tightly Packed, Moving Around Easily

 Moving, Close Together

Spread Out, Moving Around Rapidly

Tightly Packed, Rigid

In science, the term “heat" is used to describe which of the following?

The motion of atoms or molecules within a substance

The transfer of thermal energy from one object to another

 The average temperature of a system over time

The average kinetic energy of the system as a whole

____________ is energy in motion

Heat

Thermal Energy

Kinetic Energy

States of Matter

____________ are forms matter can take based upon amount of thermal energy in the matter.

 Heat

Thermal Energy

 Kinetic Energy

 State of Matter

___________ is the total kinetic and potential energy of tiny particles that make up matter.

Heat

 Thermal Energy

Kinetic Energy

State of Matter

Which of the following changes made to a sample of liquid would result in an increase in the distance between the individual molecules of the substance?

Transferring the substance to a smaller container

 Adding heat to the substance

 Changing the phase of matter from liquid to solid

 Decreasing the overall kinetic energy of the liquid

A student drew a representation of the atoms of a solid. The illustration shows closely packed atoms vibrating, but remaining in the same relative positions. Which of the following changes must the student make to the illustration to accurately represent the same substance in the liquid phase?

 The illustration should show increased movement of the atoms

 Each individual atom should be larger

 There should be VERY WIDE spaces between the atoms

 The shape of each atom must reflect the shape of the container

Which of the following statements best describes the relationship between temperature and kinetic energy of particles in a substance?

 As kinetic energy decreases, temperature is not affected

 As kinetic energy increases, temperature decreases

 As kinetic energy decreases, temperature increases

As kinetic energy increases, temperature increases

Students were asked to draw a concept map of changes in matter at the molecular level. An incomplete sample is provided here. Which of the following labels would be most appropriate for completing the diagram?

A=particles become more tightly packed

 B=the pressure of the substance decreases

 C= kinetic energy of particles increases

 D= particles become more widely spaced

Say you were to draw a the molecules for what's happening at label "B" - What would the molecules be doing?

Spreading Out, Slowing Down

Moving closer, Slowing Down

Moving Closer, Speeding Up

 Spreading out, Speeding Up

Molecules of a solid are...

Tightly Packed, Moving Around Easily

 Moving, Close Together

Spread Out, Moving Around Rapidly

Tightly Packed, Rigid

In science, the term “heat" is used to describe which of the following?

The motion of atoms or molecules within a substance

The transfer of thermal energy from one object to another

 The average temperature of a system over time

The average kinetic energy of the system as a whole

____________ is energy in motion

Heat

Thermal Energy

Kinetic Energy

States of Matter

____________ are forms matter can take based upon amount of thermal energy in the matter.  

 Heat

Thermal Energy

 Kinetic Energy

 State of Matter

___________ is the total kinetic and potential energy of tiny particles that make up matter.

Heat

 Thermal Energy

Kinetic Energy

State of Matter