Kinetic theory and States of Matter

At higher temperatures

• particles in an object have less kinetic energy

• particles in an object move faster

• a gas contracts

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

• solid

• liquid

• gas

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

Temperature is a measure of a substance's average

• kinetic energy

• heat

• density

• electrostatic force

"Kinetic" refers to

• motion

• heat

• density

• forces

The kinetic theory of matter states that all particles are constantly

• growing

• contracting

• reacting

• moving

When air in a hot air balloon is heated the air inside the baloon...

• expands
• contracts
• evaporates
• condenses

Railroad tracks have gaps between rails so they don't buckle in hot weather because

• thermal conductivity
• specific heat
• thermal expansion
• thermal insulation

All matter is made of _____ that are constantly moving.

• insulators
• particles
• convection
• pieces of plastic