Lesson 1 - What is Heat?

What is thermal energy?

• The energy that comes from heat.

• The energy that comes from light.

• The energy that comes from cold.

• The energy that comes from sound.

Give an example of an object with high thermal energy.

• hot cup of coffee

• boiling pot of water

• burning candle

• heated iron rod

What is the unit of measurement for thermal energy?

• J

• m

• K

• W

What are the three main methods of heat transfer?

• compression, rarefaction, and transmission

• reflection, refraction, and diffraction

• evaporation, condensation, and sublimation

• conduction, convection, and radiation

Which method of heat transfer does not require a medium?

• radiation

• convection

• conduction

• evaporation

What is conduction?

• Transfer of heat through direct contact or touch of an object

• The process of transferring heat or electricity through a vacuum

• The process of converting electricity into heat

• The process of converting heat into electricity

Explain the process of convection.

• Convection is the process of heat transfer through radiation.

• Convection is the process of heat transfer through the movement of solid particles.

• Convection is the process of heat transfer through the movement of a fluid.

• Convection is the process of heat transfer through conduction.

What is radiation?

• The process of converting energy into matter

• The emission of sound waves

• The process of converting matter into energy

• The emission of energy as electromagnetic waves or as moving subatomic particles

How does insulation help in reducing heat transfer?

• Insulation creates a barrier that slows down the flow of heat.

• Insulation increases the speed of heat transfer.

• Insulation generates heat and counteracts the transfer of heat.

• Insulation absorbs heat and prevents it from transferring.

What is the difference between heat and temperature?

• Heat is the transfer of matter, while temperature is a measure of the amount of energy.

• Heat and temperature are the same thing.

• Heat is a measure of the average kinetic energy of particles, while temperature is the transfer of energy.

• Heat is the transfer of energy, while temperature is a measure of the average kinetic energy of particles.