Heat and Temperature

What is required to change the temperature and state of a substance?

• Energy transfer

• Mass increase

• Volume expansion

• Pressure decrease

Which processes are involved in the transfer of heat energy?

• Conduction, convection, and radiation

• Reflection, refraction, and absorption

• Diffusion, osmosis, and filtration

• Compression, tension, and shear

What is the relationship between temperature and the kinetic energy of molecules?

• Temperature is directly related to kinetic energy

• Temperature is inversely related to kinetic energy

• Temperature is unrelated to kinetic energy

• Temperature is equal to kinetic energy

What does Wien's law relate to?

• It explains the emission of radiation from blackbody radiators

• It describes the absorption of sound waves

• It measures the speed of light in a vacuum

• It calculates the gravitational force between two masses

What is the formula used to calculate the energy required to raise the temperature of a substance?

• Q = mcΔT

• Q = mL

• Q = mgh

What is the term used to describe the process of a liquid turning into a gas?

• Vaporisation

• Condensation

• Fusion

• Melting

Which of the following terms refers to the energy associated with the motion of atoms or molecules?

• Translational kinetic energy

• Potential energy

• Chemical energy

• Nuclear energy

What does a thermometer measure?

• Thermal energy

• Temperature

• Heat flow

• Kinetic energy

What happens when thermal energy moves from a hotter object to a colder one?

• The colder object becomes colder

• The hotter object becomes hotter

• The colder object becomes warmer

• No change occurs

What is the flow of thermal energy between two objects of different temperatures called?

• Temperature

• Heat

• Kinetic energy

• Potential energy