Physical Science Midterm

Front

A gas has:

Back

no definite shape or definite volume.

Front

Matter that has a definite volume but no definite shape is a

Back

liquid

Front

In which of the substances are the forces of attraction among the particles so weak that they can be ignored under ordinary conditions? (Options: solid, liquid, gas, vapor)

Back

gas

Front

What is the result of a force distributed over an area?

Back

pressure

Front

Which factors affect the pressure of an enclosed gas? (Options: temperature, volume, number of particles, all of the above)

Back

all of the above

Front

The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will

Back

increase

Front

The law that states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is

Back

Charles

Front

During a phase change the temperature

Back

increases or decreases depending on the change

Front

During what phase change does the arrangement of water molecules become more orderly? Options: melting, freezing, boiling, condensing

Back

freezing

Front

The phase change in which a substance changes from a liquid to a gas is

Back

vaporization