Exam 2: Matter and Energy

The unit used to measure electrical power is the ____.

The total pressure of a confined mixture of gases is the sum of the pressures of each of the gases in the mixture. This is known as ____.

How many watts of electrical power are equal to 1 horsepower?

A solid material exerts a pressure or force ____.

The volume of gas varies inversely with the absolute pressure, provided the temperature remains constant. This is called ____.

Matter exists in three states: ____________________, ____________________, and ____________________.

A law of conservation of energy states that energy is neither created nor destroyed.

One pound of ice at 20°F exerts its force downward. After absorbing 200 Btus, what direction(s) will the force be exerted? After absorbing 2000 Btus?

Define specific gravity.

A liquid material exerts a pressure or force ____.

At a constant pressure, the volume of a gas varies as to the absolute temperature and at a constant volume the pressure of the gas varies directly with the absolute temperature. This is known as ____.