METHODS OF HEAT TRANSFER: SirBasTV

What is thermal energy?

• Energy that transfers through empty space by means of electromagnetic waves

• Measure of the average energy of the motions of the molecules in a substance

• Energy transferred from a body with a higher temperature to a body with a lower temperature

• Energy possessed by an object due to the movement of particles

What is the SI unit for heat?

• Celsius

• Fahrenheit

• Kelvin

• Joules

Which method of heat transfer is most effective on fluids?

• Radiation

• Insulation

• Convection

• Conduction

What are materials that allow thermal energy to readily flow through them called?

• Conductors

• Insulators

• Transmitters

• Radiators

What is the transfer of heat by means of electromagnetic waves called?

• Insulation

• Convection

• Conduction

• Radiation

What is the reason why most cooking utensils have handles made of plastics, rubber, or wood?

• To make them look attractive

• To make them lightweight

• To prevent heat from flowing to the handles

• To make them durable

What is the natural flow of heat?

• From a cold substance to a hot substance

• From a liquid substance to a solid substance

• From a solid substance to a liquid substance

• From a substance with a higher temperature to a substance with a lower temperature

What will happen to the food being cooked if there are convection currents in the boiling water?

• The food will become overcooked

• The food will stick to the bottom of the container

• The food will be in motion and prevent sticking to the bottom of the container

• The food will not cook properly