Midterm Review

What is the relationship between the internal energy of a substance and its state of matter?

• As a gas loses internal energy it becomes a plasma.

• Closer packed atoms generally have more internal energy.

• As the internal energy decreases a substance will spread further apart.

• As the internal energy increases a substance would go from solid to a liquid.

Tags

NGSS.MS-PS1-4

As matter changes state from gas to liquid, which of these statements is true?

• The particles speed up.

• The particles get farther apart.

• The particles slow down.

• The attractive force between the particles decreases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Jose and Eric were given four samples in lab. The results of their analysis are shown in the table. Based on the data they collected, which sample is most likely a metal?

• Sample D

• Sample B

• Sample A

• Sample C

Jenavius placed a marshmallow in the microwave to make a smore for desert. The marshmallow expanded when it was heated. How can you best describe why this happened?

• As the marshmallow was heated the particles moved slower decreasing its volume.

• As the marshmallow was heated the particles moved faster increasing its volume.

• As the marshmallow was heated the particles moved slower increasing its volume.

• As the marshmallow was heated the particles moved faster decreasing its volume.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Using the chart above, determine which statement would be FALSE.

• Each element would have a mass number of 12.

• Hydrogen would have 0 neutrons.

• Neon is the element with an atomic number of 10.

• Carbon would have 6 protons.

Tags

NGSS.MS-PS1-1

As ice transforms into steam,

• new molecules are formed.

• the mass of the molecules is increased.

• energy is absorbed by the molecules.

• the types of atoms are changed.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Has luster

Malleable

Ductile

Conductor

Solid at room temperature

Which element could be described by the list of properties above?

• mercury

• phosphorus

• magnesium

• neon

When the temperature is cold, Tim's tires look under-inflated. This is because the air molecules in the tire ________ causing their kinetic energy to _________ and volume to _______.

• stay the same, increase, expand

• slow down, decrease, contract

• speed up, decrease, stay the same

• multiply, increase, fluctuates

Tags

NGSS.MS-PS1-4

Explain the changes in molecular motion of particles as they change from solid to liquid to gas.

• As the phase changes occur, the freedom of motion of the particles is constant.

• As the phase changes occur, the freedom of motion of the particles compresses.

• As the phase changes occur, the freedom of motion of the particles increases.

• As the phase changes occur, the freedom of motion of the particles decreases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When car tires are on hot pavement for too long, the pressure inside will ___________ and the volume within the tire will _____________.

• increase; increase and possibly result in a blowout

• decrease; remain unchanged

• increase; remain unchanged as long as the temperature is constantly rising

• increase; decrease due to deflation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4