Chapter 5.2 and 5.3 Quiz 24/25

Which material is the best conductor of heat?

• metal
• wood
• glass
• styrofoam

Conduction can only occur between two objects when –

• both objects are exactly the same temperature.
• one of the objects is made of a metal.
• both objects are in physical contact with each other.
• one object is less dense than the other.

Which of the following is an example of conduction?

• Heat rising from the coils of a stove.
• Heat moving from a clothes iron to a shirt.
• Solar energy warming a room.
• Hot air drying a wet towel.

Which of the following are kinds of heat transfer.

• Conduction
• Convection
• Radiation
• All of the above

Jenny poured some hot chocolate into a cup and stirred it with a metal spoon. She noticed the spoon was really warm. What is the best explanation for this?

• The spoon reflects heat.
• She touched the spoon first and waited to touch the cup.
• The spoon is an insulator.
• The spoon is a conductor.

Can heat be created or destroyed?

• Yes
• Only when things are cooling off
• No
• Only when things are warming up

Heat energy from the sun is transferred to Earth by:

• radiation.
• convection.
• conduction.
• insulation.

The way heat moves in liquids and gases is called ___

• temperature
• convection
• radiation
• conduction

Which example below is an example of conduction?

• Standing in a front of a fire.
• Touching hot sand with your feet
• The attic is warmer than the basement
• The Sun heating the Earth

What is the difference between a conductor and an insulator?

• An insulator is magnetic and a conductor is not
• A conductor allows electricity to flow through it easily and an insulator does not.
• An insulator allows electricity to flow through it easily and a conductor does not
• A conductor is magnetic and an insulator is not