Physics Test 5/1

Bridge roads have gaps as an allowance to avoid cracking. This phenomenon is described by:

• Structural integrity
• Friction reduction
• Weight distribution
• Thermal expansion

Thermodynamics is the branch of Physics...

• studies the behavior of light
• focuses on the motion of celestial bodies
• deals with the relationships between heat, work, and energy
• analyzes the structure of atoms

What does the First Law of Thermodynamics state?

• Energy cannot be created or destroyed, only transferred or converted.
• Energy always decreases in any process.
• Energy is constant in a closed system.
• Energy can be created and destroyed at will.

Which best describes Entropy?

• a measure of organization in a system.

• a measure of energy in a system.

• a measure of temperature in a system.

• a measure of disorder or randomness in a system.

Which law of Thermodynamics states that disorder stops at 0 Kelvin?

• First Law of Thermodynamics
• Third Law of Thermodynamics
• Second Law of Thermodynamics
• Zeroth Law of Thermodynamics

Which law of Thermodynamics states that energy spread more randomly in the universe?

• First Law of Thermodynamics
• Third Law of Thermodynamics
• Zeroth Law of Thermodynamics

• Second Law of Thermodynamics

The First Law of Thermodynamics is also known as the law of:

• Conservation of energy
• Law of Entropy
• Heat Transfer
• Thermal Equilibrium

Work is considered negative in the system when the environment is:

• compressing the object.

• expanding the object.

• cooling the object.

• warming the object.

In Thermodynamics, ________ produces ________.

• evaporation - light

• condensation - sound

• sublimation - electricity

• work - heat

Which formula is used to calculate the amount of work in Thermodynamics?

• W = Fd

• W = F/d

• W = P(V_f - V_i)

• W = P(V_i - V_f)