Tab 4/B - Fluid Power & Thermodynamics

Front

What is the principle of energy transfer in thermodynamics?

Back

Energy moves from a higher state to a lower state.

Front

What happens to the volume of a balloon when liquid Freon is applied?

Back

The balloon gets smaller due to the cooling effect of Freon.

Front

Explain why a suction cup falls off when the temperature of the glass decreases.

Back

The pressure under the suction cup decreases as the temperature drops, causing it to lose its grip.

Front

What is the expected temperature in a cabin after being unheated for a week in 20°F weather?

Back

The temperature in the cabin will be 20°F upon return.

Front

How does atmospheric pressure affect boiling points?

Back

Atmospheric pressure influences boiling points; lower pressure results in lower boiling points.

Front

Define thermodynamics.

Back

Thermodynamics is the study of energy, heat, and work and their interrelations.

Front

What is the significance of the boiling point of a substance?

Back

The boiling point is the temperature at which a liquid turns into vapor.

Front

What is the relationship between temperature and pressure in a closed system?

Back

In a closed system, as temperature increases, pressure also increases if the volume remains constant.

Front

What is the effect of temperature on gas volume according to Charles's Law?

Back

According to Charles's Law, the volume of a gas increases with an increase in temperature at constant pressure.

Front

What is the concept of thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat, having reached the same temperature.