Chemistry 13 State of Matter

the energy an object has due to its motion

• kinetic energy
• positional energy
• potential energy
• temperature

All matter consists of tiny particles that are in constant motion.

• Kinetic Theory
• Movement Theory
• Positional Theory
• Temperature Theory

The particles in a gas are considered to be small, hard spheres with a(n) _____.

• large volume

• insignificant volume

The motion of the particles in a gas is _____.

• rapid, constant and random
• slow, constant and random
• rapid and unpredictable
• slow and unpredictable

All collisions between particles in a gas are _____.

• perfectly inelastic
• perfectly elastic

results from the force exerted by a gas per unit surface area of an object

• temperature
• volume
• gas pressure
• physical state of the gas

an empty space with no particles and no pressure

• Shangri-la
• vacuum
• vacuum cleaner
• barometer

The collisions of atoms and molecules in air with objects causes _____.

• ocean pressure
• atmospheric pressure
• land pressure
• all kinds of pressure

a device that is used to measure atmospheric pressure

• thermometer
• vacuum
• temperature
• barometer

the SI unit for pressure

• atm
• mmHg
• Pascal(Pa)
• psi