Describing Heat Energy

How is heat produced?

• A. Due to the flow of water

• B. Due to the gradual motion of the object

• C. Due to the constant vibration of the objects

• D. Due to the  rapid motion of molecules

Which among activities shows heat transfer?

• A.Sleeping man

• B. Ringing cellphone

• C. Washing the dishes

• D. Burning woods in fireplace

When molecules of matter move fast, what energy is produced?

• A. Electrical

• B. Heat

• C. Sound

• D. Mechanical

Which of these activities shows heat transfer?

• A. Light is needed to produce sound.

• B. Light is used in heating up the Earth.

• C. Light is important in locating different materials.

• D. Light is essential in producing motions.

Heat energy is transferred by touch through _____.

• A. Conduction

• B. Radiation

• C. Convection

• D. Transmission

What process of heat transfer is shown when hot air inside the house rises while cool air sink.

• A. Radiation

• B. Conduction

• C. Convection

• D.None of the above

Transfer of heat when the spoon becomes hot when dip in a cup of hot coffee.

• A. Convection

• B. Radiation

• C. Conduction

• D. Evaporation

______ is a transfer of heat by transmission of waves/rays or particles.

• A. Convection

• B. Conduction

• C. Direct contact

• D. Radiation