Heat Basics

What is conduction?

• Conduction is the transfer of heat through a liquid medium.

• Conduction is the transfer of heat through electromagnetic waves.

• Conduction is the transfer of heat through a material without any movement of the material itself.

• Conduction is the transfer of heat through the movement of particles.

How does convection transfer heat?

• Convection transfers heat through electromagnetic waves.

• Convection transfers heat through the movement of fluids.

• Convection transfers heat through solid materials.

• Convection transfers heat through sound waves.

Explain the process of radiation in heat transfer.

• Radiation in heat transfer is the process where heat is transferred through mass transfer

• Radiation in heat transfer is the process where heat is transferred through electromagnetic waves without the need for a medium.

• Radiation in heat transfer is the process where heat is transferred through conduction

• Radiation in heat transfer is the process where heat is transferred through convection

What is specific heat and how is it measured?

• Specific heat is the amount of heat energy required to lower the temperature of a substance.

• Specific heat is measured by using a thermometer.

• Specific heat is the energy released by a substance when heated.

• Specific heat is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius. It is measured using a calorimeter.

Describe the concept of heat transfer.

• Heat transfer is the process of energy moving from a cooler object to a warmer object.

• Heat transfer involves the conversion of matter into energy.

• Heat transfer is only possible in a vacuum.

• Heat transfer is the process of energy moving from a warmer object to a cooler object.

Give an example of conduction in everyday life.

• Holding a plastic cup filled with hot coffee

• Touching a metal spoon in a hot cup of tea

• Walking barefoot on a cold tile floor

• Watching a movie on a smartphone

How does convection occur in fluids?

• Convection in fluids occurs due to the rotation of the Earth.

• Convection in fluids is a result of gravitational forces.

• Convection in fluids is caused by magnetic fields.

• Convection in fluids occurs due to the movement of the fluid itself.

What are some examples of radiation in nature?

• Visible light, Neutrons, Electromagnetic waves

• Microwaves, X-rays, Infrared radiation

• Ultraviolet light, Gamma rays, Radio waves

• Sunlight, cosmic rays, radioactive decay

Why is specific heat important in understanding heat transfer?

• Specific heat is used to calculate the density of a substance

• Specific heat measures the color of a substance

• Specific heat quantifies how much heat energy is required to change the temperature of a substance.

• Specific heat determines the electrical conductivity of a material

Compare and contrast conduction, convection, and radiation.

• Conduction is the movement of charged particles, convection is the transfer of heat by sound waves, radiation is the movement of molecules in a circular pattern.

• Conduction is through material, convection is through fluids, and radiation is through electromagnetic waves.