Matter & Energy

A model of an atom is shown.

Which best describes the particles that make up the part labeled X in the model?

• They all have no charge.

• They all have a positive charge.

• Some have a positive charge and some have no charge.

• Some have a positive charge and some have a negative charge.

Tags

NGSS.MS-PS1-1

A student compares the physical properties of samples of two elements in order to classify them. The chart shows her observations. Which statement do her observations support?

• Both Sample X and Sample Y are metals.

• Both Sample X and Sample Y are nonmetals.

• Sample X is a nonmetal, and Sample Y is a metal.

• Sample X is a metal, and Sample Y is a nonmetal.

Which term best describes the substance?

• compound

• element

• mixture

• metal

As thermal energy is added to matter

• the atoms and or molecules move faster

• the matter turns to glue

• it gets colder

• the atoms and or molecules move slower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Metal easily transfers energy.  It is considered a(n):

• insulator

• plastic

• convector

• conductor

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

When thermal energy is transferred from one object to another without the objects touching (through electromagnetic waves) it is called:  

• conduction

• radiation

• convection

• friction

Which image represents the least dense matter?

• A

• B

• C

Heat transfer through direct contact is called

• conduction

• convection

• radiation

• insulation

Roasting marshmallows over a fire is an example of which form of heat transfer?

• conduction

• convection

• radiation

• friction

Tags

NGSS.MS-PS3-3

A form of energy caused by the motion of atoms and molecules

• nuclear

• electric

• sound

• heat

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4