Thermodynamics Questions

What is the SI unit of temperature?

• Celsius

• Fahrenheit

• Kelvin

• Joule

Temperature is proportional to what aspect of the particles in a substance?

• Mass

• Volume

• Average kinetic energy

• Heat

What happens to the kinetic energy of particles as temperature increases?

• It decreases

• It remains constant

• It increases

• It fluctuates unpredictably

Which formula represents the conversion from Fahrenheit to Celsius?

• °C = (5/9)(°F - 32)

• °C = (9/5)(°F + 32)

• °F = (5/9)(°C + 32)

• °F = (9/5)(°C - 32)

How do you convert Celsius to Kelvin?

• °C = K + 273

• K = °C + 273

• °C = K - 273

• K = °C - 273

What is internal energy (U) of a substance primarily a result of?

• The chemical composition of the substance

• The random motions of its particles and the potential energy from distances and alignments between the particles

• The temperature and color of the substance

• The electrical charge of the substance's particles

What happens to the volume of a substance when the temperature increases?

• The volume decreases.

• The volume remains constant.

• The volume increases.

• The volume periodically fluctuates.

What is heat defined as in the context of physics?

• The light emitted by an object

• The energy transferred between objects because of a difference in temperature

• The total kinetic energy of particles in an object

• The temperature change in an object

What is the symbol for heat?

• H

• T

• Q

• J

What is the SI unit for heat?

• Kelvin

• Celsius

• Watt

• Joule