Chemistry Kinetic Molecular Theory, States of Matter, and Water

At higher temperatures

• particles in an object have less kinetic energy

• particles in an object move faster

• a gas contracts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Thermal energy is...

• heat energy

• the energy of motion

• energy of nuclear processes.

• an indication of physical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Which state of matter has particles that are somewhat close together and have enough kinetic energy to slide past each other?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

______ is the amount of space an object takes up.

• mass
• volume

A physical change from gas to liquid is called....

• expansion

• evaporation

• condensation

• sublimation

Tags

NGSS.MS-PS1-4

Convert -89 ^oC to K

• 184K

• 362K

• -362K

• -184K

Convert 300 K to ^oC

• 27^oC
• 0^oC
• -27^oC
• 573^oC

Tags

NGSS.MS-PS1-4

This most widely used temperature scale is based on the freezing and boiling points of water.

• Celsius

• Fahrenheit

• Kelvin

• All of them

On this temperature scale, "zero" represents the temperature at which molecules have the lowest energy possible

• Fahrenheit Scale

• Celsius Scale

• Kelvin Scale

Which of the following states of matter has the LOWEST level of kinetic energy?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS3-1